JP4674676B2 - 2-Substituted aminopyrimidinone derivatives, methods for producing them, and insecticides and acaricides containing them as active ingredients - Google Patents

2-Substituted aminopyrimidinone derivatives, methods for producing them, and insecticides and acaricides containing them as active ingredients Download PDF

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Publication number
JP4674676B2
JP4674676B2 JP31746099A JP31746099A JP4674676B2 JP 4674676 B2 JP4674676 B2 JP 4674676B2 JP 31746099 A JP31746099 A JP 31746099A JP 31746099 A JP31746099 A JP 31746099A JP 4674676 B2 JP4674676 B2 JP 4674676B2
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Prior art keywords
group
trifluoromethyl
mmol
pyrimidinone
amino
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JP31746099A
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Japanese (ja)
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JP2001131156A (en
Inventor
憲次 平井
淳 内田
真帆 長岡
夏子 岡野
竜太 大野
千香子 太田
俊樹 福地
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Sagami Chemical Research Institute (Sagami CRI)
Nihon Nohyaku Co Ltd
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Sagami Chemical Research Institute (Sagami CRI)
Nihon Nohyaku Co Ltd
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Description

【0001】
【発明の属する技術分野】
本発明は、2−置換アミノピリミジノン誘導体及びそれらの製造中間体、並びにそれらを有効成分とする殺虫、殺ダニ剤に関する。
【0002】
【従来の技術】
従来、農園芸分野では、各種病害虫あるいは雑草の防除を目的とした殺虫、殺ダニ剤が開発され実用に供されている。しかしながら、従来汎用されている農園芸用殺虫、殺ダニ剤は、効果、スペクトラム、あるいは残効性等の点において必ずしも満足すべきものではない。また、施用回数や施用薬量の低減等の社会的要請を充分満足しているとは言えない。
【0003】
また、従来汎用されてきた農薬に対して抵抗性を獲得した害虫の出現も問題となっている。例えば、野菜、果樹、花卉、茶、ムギ類及びイネ等の栽培において、有機リン剤(フェニトロチオン、マラチオン、プロチオフォス、DDVP等)、ピレスロイド系(ペルメトリン、シペルメリン、フェンバレレート、サイハロスリン等)、ベンゾイルウレア系(ジフルベンズロン、テフルベンズロン、クロルフルアズロン等)、ネライストキシン系(カルタップ、ベンスルタップ等)農薬等に抵抗性を獲得した害虫の防除が年々困難になっている。
【0004】
さらに、害虫が未だ抵抗性を獲得していない農薬(例えば、ジチオカーバメート系やフタルイミド系農薬等)もあるが、これらは一般に施用薬量や施用回数が多く、環境汚染等の観点から好ましいものではない。従って、従来汎用の農園芸用殺虫、殺ダニ剤に抵抗性を獲得した各種害虫に対しても低薬量で十分な防除効果を示し、しかも環境への悪影響が少ない新規な殺虫剤の開発が切望されている。殺ダニ剤についても、従来汎用の殺ダニ剤に抵抗性を示すダニに対しても優れた防除効果を示し、安全性の高い殺ダニ剤の開発が期待されている。
【0005】
一方、国際特許出願WO93/21162号公報(特開平6−321913号公報)、特開平7−89941号、WO98/51152号、WO98/51675号、特願平10−119917号、特願平10−321181号、特願平10−321182号公報には、本発明の化合物と類似の構造を有する2−アリールアミノピリミジノン誘導体が開示されているが、本発明の一般式(1)で示される2−置換アミノピリミジノン誘導体については全く報告例はない。
【0006】
【発明が解決しようとする課題】
本発明の課題は、従来の農園芸用殺虫、殺ダニ剤に抵抗性を示す各種害虫に対して高い防除効果を示し、かつ、作物に対する高い安全性を併せ持つ新規殺虫、殺ダニ剤を提供することにある。
【0007】
【課題を解決するための手段】
本発明者等は上記の課題を解決すべく鋭意検討した結果、下記一般式(1)で示されるような、2位窒素原子上に芳香族基を有する4−ピリミジノン誘導体が、上記特徴を有する化合物であることを見い出し、本発明を完成させるに至った。
【0008】
すなわち本発明は、一般式(1)
【0009】
【化13】

Figure 0004674676
【0010】
(式中、Rは置換されていてもよい芳香族基を表す。R1はハロゲン原子;C1〜C4ハロアルキル基又は置換されていてもよいフェニル基を表し、R2は水素原子又はハロゲン原子を表す。R3は置換されていてもよいC1〜C6アルキル基;置換されていてもよいC3〜C8シクロアルキル基;置換されていてもよいビニル基;置換されていてもよいC3〜C6アルケニル基;置換されていてもよいC3〜C6アルキニル基;置換されていてもよいC7〜C11アラルキル基;置換されていてもよいフェニル基を表す。R4は水素原子;C1〜C4アルキル基;C1〜C4ハロアルキル基;(C1〜C4アルコキシ)C1〜C4アルキル基;(C1〜C4ハロアルコキシ)C1〜C4アルキル基;C1〜C4アルコキシ(C1〜C4アルコキシ)C1〜C4アルキル基;(C1〜C4アルキルチオ)C1〜C4アルキル基;(C1〜C5アシルオキシ)C1〜C4アルキル基;チオシアナト(C1〜C4アルキル)基;C3〜C4アルケニル基;C1〜C5アシル基;(C1〜C4アルコキシ)カルボニル基;アミノカルボニル基;(C1〜C4アルキル)アミノカルボニル基;ジ(C1〜C4アルキル)アミノカルボニル基;(C1〜C4アルキル)スルホニル基を表す。)で示される2−置換アミノピリミジノン誘導体に関するものである。
【0011】
さらに本発明は、一般式(2)
【0012】
【化14】
Figure 0004674676
【0013】
(式中、R1及びR3は前記と同じ意味を表す。R5はC1〜C4アルキル基を表す。)で示される2−アルキルチオピリミジノン誘導体を塩基の存在下に、一般式(3)
【0014】
【化15】
Figure 0004674676
【0015】
(式中、Rは前記と同じ意味を表す。)で示されるアミン類と反応させ、一般式(1a)
【0016】
【化16】
Figure 0004674676
【0017】
(式中、R、R1及びR3は前記と同じ意味を表す。)で示される2−置換アミノピリミジノン誘導体を製造する方法、さらにこのものをハロゲン化することにより、一般式(1b)
【0018】
【化17】
Figure 0004674676
【0019】
(式中、R、R1及びR3は前記と同じ意味を表す。R2aはハロゲン原子を表す。)で示される2−置換アミノピリミジノン誘導体を製造する方法に関する。
【0020】
また本発明は、一般式(4)
【0021】
【化18】
Figure 0004674676
【0022】
(式中、R1及びR3は前記と同じ意味を表す。)で示される2−アミノピリミジノン誘導体と一般式(5)
【0023】
【化19】
Figure 0004674676
【0024】
(式中、Rは前記と同じ意味を表す。Xはハロゲン原子を表す。)で示される芳香族ハロゲン化合物とを反応させ、一般式(1a)
【0025】
【化20】
Figure 0004674676
【0026】
(式中、R、R1及びR3は前記と同じ意味を表す。)で示される2−置換アミノピリミジノン誘導体を製造する方法に関する。
【0027】
さらに本発明は、一般式(1c)
【0028】
【化21】
Figure 0004674676
【0029】
(式中、R、R1、R2及びR3は前記と同じ意味を表す。)で示される2−置換アミノピリミジノン誘導体を塩基の存在下に、一般式(6)
【0030】
【化22】
Figure 0004674676
【0031】
(式中、R4aは水素原子を除くR4で表される置換基を表し、Yは脱離基を表す。)で示される化合物とを反応させ、一般式(1d)
【0032】
【化23】
Figure 0004674676
【0033】
(式中、R、R1、R2、R3及びR4aは前記と同じ意味を表す。)で示される2−置換アミノピリミジノン誘導体を製造する方法に関するものである。
【0034】
また本発明は、一般式(1)
【0035】
【化24】
Figure 0004674676
【0036】
(式中、R、R1、R2、R3及びR4は前記と同じ意味を表す。)で示される2−置換アミノピリミジノン誘導体を有効成分とする殺虫、殺ダニ剤に関するものである。以下本発明をさらに詳細に説明する。
【0037】
【発明の実施の形態】
本発明の化合物である2−置換アミノピリミジノン誘導体において、Rで示される置換されていてもよい芳香族基としては、ナフチル基、アントラニル基等の炭化水素系芳香族基、フリル基、ピロリル基、チエニル基、イミダゾリル基、ピラゾリル基、チアゾリル基、イソチアゾリル基、オキサゾリル基、イソオキサゾリル基、トリアゾリル基、テトラゾリル基、オキサジアゾリル基、チアジアゾリル基、ピリジル基、ピラジニル基、ピリミジニル基、ピリダジニル基等の複素環式芳香族基及びこれらのベンゾローグ誘導体、並びにこれらが縮環した芳香族基等を例示することができる。これらの芳香族基は、ハロゲン原子;C1〜C4アルキル基;C1〜C4ハロアルキル基;C3〜C5ポリメチレン基;(C1〜C4アルコキシ)C1〜C4アルキル基;C3〜C6アルケニル基;C3〜C6アルキニル基;C1〜C5アシル基;カルボキシ基;(C1〜C4アルコキシ)カルボニル基;シアノ基;水酸基;C1〜C4アルコキシ基;C1〜C4ハロアルコキシ基;(C1〜C4アルコキシ)C1〜C4アルコキシ基;カルボキシC1〜C4アルコキシ基;(C1〜C4アルコキシ)カルボニルC1〜C4アルコキシ基;C3〜C6アルケニルオキシ基;C3〜C6アルキニルオキシ基;置換されていてもよいフェニルオキシ基;C1〜C5アシルオキシ基;メルカプト基;C1〜C4アルキルチオ基;C1〜C4ハロアルキルチオ基;C1〜C4アルキルスルフィニル基;C1〜C4ハロアルキルスルフィニル基;C1〜C4アルキルスルホニル基;C1〜C4ハロアルキルスルホニル基;アミノ基;C1〜C4アルキルアミノ基;ジ(C1〜C4アルキル)アミノ基;C1〜C5アシルアミノ基;C1〜C4アルキルスルホニルアミノ基;ニトロ基等で1個以上置換されていてもよい。
【0038】
さらに、これらの置換基の具体例としては、フッ素原子、塩素原子、臭素原子、ヨウ素原子等のハロゲン原子;メチル基、エチル基、プロピル基、イソプロピル基、ブチル基、イソブチル基、s−ブチル基、t−ブチル基のアルキル基;トリフルオロメチル基、2−クロロエチル基等のハロアルキル基;トリメチレン基、テトラメチレン基、ペンタメチレン基等のポリメチレン基;2−プロペニル基等のアルケニル基;プロパルギル基等のアルキニル基;ホルミル基、アセチル基等のアシル基;カルボキシ基;メトキシカルボニル基、エトキシカルボニル基等のアルコキシカルボニル基;シアノ基;水酸基;メトキシ基、エトキシ基、プロポキシ基、イソプロポキシ基、t−ブトキシ基等のアルコキシ基;トリフルオロメトキシ基、ジフルオロメトキシ基、2,2,2−トリフルオロエトキシ基等のハロアルコキシ基;カルボキシメトキシ基、1−(カルボキシ)エトキシ基等のカルボキシアルコキシ基;メトキシカルボニルメトキシ基、エトキシカルボニルメトキシ基等のアルコキシカルボニルアルコキシ基;2−プロペニルオキシ基、2−メチル−2−プロペニルオキシ基等のアルケニルオキシ基;2−プロピニルオキシ基、1−メチル−2−プロピニルオキシ基等のアルキニルオキシ基;フェニルオキシ基、4−メチルフェニルオキシ基、3−クロロフェニルオキシ基、2−フルオロフェニルオキシ基、4−フルオロフェニルオキシ基等の置換されていてもよいフェニルオキシ基;アセトキシ基、プロピオニルオキシ基等のアシルオキシ基;メルカプト基;メチルチオ基、エチルチオ基等のアルキルチオ基;トリフルオロメチルチオ基等のハロアルキルチオ基;メチルスルホニル基、エチルスルホニル基等のアルキルスルホニル基;トリフルオロメチルスルホニル基等のハロアルキルスルホニル基;アミノ基;メチルアミノ基、エチルアミノ基、プロピルアミノ基、イソプロピルアミノ基、ブチルアミノ基等のアルキルアミノ基;ジメチルアミノ基、ジエチルアミノ基、メチルプロピルアミノ基等のジアルキルアミノ基;アセチルアミノ基、プロピオニルアミノ基等のアシルアミノ基;メチルスルホニルアミノ基、エチルスルホニルアミノ基等のアルキルスルホニルアミノ基及びニトロ基等を例示することができる。
【0039】
1の具体例としては、フッ素原子、塩素原子、臭素原子等のハロゲン原子、フルオロメチル基、クロロメチル基、ブロモメチル基、トリクロロメチル基、トリフルオロメチル基、1−クロロエチル基、2−クロロエチル基、3−クロロプロピル基、ペンタフルオロエチル基等のハロアルキル基;フェニル基、2−フルオロフェニル基、2−クロロフェニル基、2−ブロモフェニル基、3−フルオロフェニル基、3−クロロフェニル基、4−フルオロフェニル基、4−クロロフェニル基、4−ブロモフェニル基、2,4−ジフルオロフェニル基、2,4−ジクロロフェニル基、3,5−ジフルオロフェニル基、3,5−ジクロロフェニル基、3−クロロ−2,4−ジフルオロフェニル基、2,4,5−トリクロロフェニル基、2,4−ジクロロ−3−メチルフェニル基、2,4−ジクロロ−5−イソプロピルオキシフェニル基、2−フルオロ−4−クロロ−5−イソプロピルオキシフェニル基、2−フルオロ−4−クロロ−5−シクロペンチルオキシフェニル基、2−フルオロ−4−クロロ−5−プロパルギルオキシフェニル基、2−フルオロ−4−トリフルオロメチルフェニル基、2−クロロ−4−トリフルオロメチルフェニル基、2−クロロ−5−トリフルオロメチルフェニル基、2−フルオロ−5−ニトロフェニル基、2,4−ジフルオロ−5−ニトロフェニル基、2−メチルフェニル基、3−メチルフェニル基、4−メチルフェニル基、2,4−ジメチルフェニル基、4−エチルフェニル基、4−イソプロピルフェニル基、4−t−ブチルフェニル基、2−トリフルオロメチルフェニル基、3−トリフルオロメチルフェニル基、4−トリフルオロメチルフェニル基、2,4−ビス(トリフルオロメチル)フェニル基、3,5−ビス(トリフルオロメチル)フェニル基、2−アセチルフェニル基、4−アセチルフェニル基、4−イソバレリルフェニル基、2−メトキシカルボニルフェニル基、2−エトキシカルボニルフェニル基、3−メトキシカルボニルフェニル基、4−メトキシカルボニルフェニル基、2−カルボキシフェニル基、4−カルボキシフェニル基、2−シアノフェニル基、4−シアノフェニル基、2−メトキシフェニル基、3−メトキシフェニル基、4−メトキシフェニル基、3,4−ジメトキシフェニル基、4−イソプロピルオキシフェニル基、4−t−ブチルオキシフェニル基、3−トリフルオロメチルオキシフェニル基、4−トリフルオロメチルオキシフェニル基、3−フェノキシフェニル基、4−フェノキシフェニル基、2−メチルチオフェニル基、4−メチルチオフェニル基、2−メチルスルフィニルフェニル基、4−メチルスルフィニルフェニル基、2−メチルスルホニルフェニル基、4−メチルスルホニルフェニル基、4−トリフルオロメチルチオフェニル基、4−トリフルオロメチルスルフィニルフェニル基、4−トリフルオロメチルスルホニルフェニル基、2−ニトロフェニル基、4−ニトロフェニル基等を例示することができ、好ましくは、ハロゲン原子、特に塩素原子、ハロアルキル基、特にトリフルオロメチル基、トリクロロメチル基、ペンタフルオロエチル基である。
【0040】
2で表されるハロゲン原子としては、フッ素原子、塩素原子、臭素原子、ヨウ素原子を挙げることができるが、合成の容易さ並びに活性の強さから、塩素原子あるいは臭素原子が好ましい。
【0041】
3としては、メチル基、エチル基、プロピル基、イソプロピル基、ブチル基、イソブチル基、s−ブチル基、t−ブチル基、シクロプロピルメチル基、ペンチル基、ヘキシル基、シクロヘキシルメチル基、2,2−ジメトキシエチル基、2,2−ジエトキシエチル基等の置換されていてもよいアルキル基;シクロプロピル基、メチルシクロプロピル基、ジメチルシクロプロピル基、シクロブチル基、シクロペンチル基、3−メチルシクロペンチル基、シクロヘキシル基等の置換されていてもよいシクロアルキル基;ビニル基、1−メチルビニル基、1−エチルビニル基、1−クロロビニル基、2−メトキシビニル基、2−エトキシビニル基等の置換されていてもよいビニル基;2−プロペニル基、2−クロロ−2−プロペニル基、3−クロロ−2−プロペニル基、2−メチル−2−プロペニル基、2−ブテニル基、3−ブテニル基、3−メチル−3−ブテニル基、4−クロロ−2−ブテニル基等の置換されていてもよいアルケニル基;プロパルギル基、3−ブロモプロパルギル基、1−ブチン−3−イル基、2−ブチニル基、4−ブロモ−2−ブチニル基等の置換されていてもよいアルキニル基;ベンジル基、2−フルオロベンジル基、3−フルオロベンジル基、4−フルオロベンジル基、2−クロロベンジル基、3−クロロベンジル基、4−クロロベンジル基、2−ブロモベンジル基、3−ブロモベンジル基、4−ブロモベンジル基、3,5−ジフルオロベンジル基、3,5−ジクロロベンジル基、3,5−ジブロモベンジル基、2−メチルベンジル基、3−メチルベンジル基、4−メチルベンジル基、2,4−ジメチルベンジル基、3,5−ジメチルベンジル基、2−トリフルオロメチルベンジル基、3−トリフルオロメチルベンジル基、4−トリフルオロメチルベンジル基、3,5−ビス(トリフルオロメチル)ベンジル基、2,4−ビス(トリフルオロメチル)ベンジル基、2−メトキシカルボニルベンジル基、3−メトキシカルボニルベンジル基、4−メトキシカルボニルベンジル基、3−カルボキシベンジル基、4−カルボキシベンジル基、3−シアノベンジル基、4−シアノベンジル基、2−メトキシベンジル基、3−メトキシベンジル基、4−メトキシベンジル基、3,4−ジメトキシベンジル基、4−トリフルオロメトキシベンジル基、4−フェノキシベンジル基、4−メチルチオベンジル基、2−ニトロベンジル基、3−ニトロベンジル基、4−ニトロベンジル基、α−フェネチル基、1−(2−フルオロフェニル)エチル基、1−(2−クロロフェニル)エチル基、1−(2−ブロモフェニル)エチル基、1−(3−フルオロフェニル)エチル基、1−(3−クロロフェニル)エチル基、1−(3−ブロモフェニル)エチル基、1−(4−フルオロフェニル)エチル基、1−(4−クロロフェニル)エチル基、1−(4−ブロモフェニル)エチル基、1−(2−トリフルオロメチルフェニル)エチル基、1−(3−トリフルオロメチルフェニル)エチル基、1−(4−トリフルオロメチルフェニル)エチル基、β−フェネチル基、2−(3−ブロモフェニル)エチル基、2−(3−トリフルオロメチルフェニル)エチル基、3−フェニルプロピル基、4−フェニルブチル基等の置換されていてもよいアラルキル基;フェニル基、2−フルオロフェニル基、2−クロロフェニル基、2−ブロモフェニル基、3−フルオロフェニル基、3−クロロフェニル基、4−フルオロフェニル基、4−クロロフェニル基、4−ブロモフェニル基、2,4−ジフルオロフェニル基、2,4−ジクロロフェニル基、3,5−ジフルオロフェニル基、3,5−ジクロロフェニル基、3−クロロ−2,4−ジフルオロフェニル基、2,4,5−トリクロロフェニル基、2,4−ジクロロ−3−メチルフェニル基、2,4−ジクロロ−5−メトキシフェニル基、2,4−ジクロロ−5−イソプロピルオキシフェニル基、2−フルオロ−4−クロロ−5−メトキシフェニル基、2−フルオロ−4−クロロ−5−イソプロピルオキシフェニル基、2−フルオロ−4−クロロ−5−シクロペンチルオキシフェニル基、2−フルオロ−4−クロロ−5−プロパルギルオキシフェニル基、2−フルオロ−4−クロロ−5−(1−ブチン−3−イルオキシ)フェニル基、2−フルオロ−4−トリフルオロメチルフェニル基、2−クロロ−4−トリフルオロメチルフェニル基、2−クロロ−5−トリフルオロメチルフェニル基、2−フルオロ−5−ニトロフェニル基、2,4−ジフルオロ−5−ニトロフェニル基、2−メチルフェニル基、3−メチルフェニル基、4−メチルフェニル基、2,4−ジメチルフェニル基、4−エチルフェニル基、4−イソプロピルフェニル基、4−t−ブチルフェニル基、2−トリフルオロメチルフェニル基、3−トリフルオロメチルフェニル基、4−トリフルオロメチルフェニル基、2,4−ビス(トリフルオロメチル)フェニル基、3,5−ビス(トリフルオロメチル)フェニル基、2−アセチルフェニル基、4−アセチルフェニル基、4−イソバレリルフェニル基、2−メトキシカルボニルフェニル基、2−エトキシカルボニルフェニル基、3−メトキシカルボニルフェニル基、4−メトキシカルボニルフェニル基、2−カルボキシフェニル基、4−カルボキシフェニル基、2−シアノフェニル基、4−シアノフェニル基、2−メトキシフェニル基、3−メトキシフェニル基、4−メトキシフェニル基、3,4−ジメトキシフェニル基、4−イソプロピルオキシフェニル基、4−t−ブチルオキシフェニル基、3−トリフルオロメチルオキシフェニル基、4−トリフルオロメチルオキシフェニル基、2−メチルチオフェニル基、4−メチルチオフェニル基、2−メチルスルフィニルフェニル基、4−メチルスルフィニルフェニル基、2−メチルスルホニルフェニル基、4−メチルスルホニルフェニル基、4−トリフルオロメチルチオフェニル基、4−トリフルオロメチルスルフィニルフェニル基、4−トリフルオロメチルスルホニルフェニル基、2−ニトロフェニル基、4−ニトロフェニル基等の置換されていてもよいフェニル基を例示することができる。
【0042】
4としては、水素原子;メチル基、エチル基、プロピル基、イソプロピル基、ブチル基、イソブチル基等のアルキル基;クロロメチル基、トリフルオロメチル基、2−クロロエチル基、3−フルオロプロピル基等のハロアルキル基;メトキシメチル基、エトキシメチル基、プロピルオキシメチル基、ブチルオキシメチル基、1−メトキシエチル基、2−メトキシエチル基等のアルコキシアルキル基;トリクロロメトキシメチル基、トリフルオロメトキシメチル基等のハロアルコキシアルキル基;2−メトキシエトキシメチル基、2−エトキシエトキシメチル基等のアルコキシアルコキシアルキル基;メチルチオメチル基、エチルチオメチル基、1−(メチルチオ)エチル基、2−(メチルチオ)エチル基等のアルキルチオアルキル基;ホルミルオキシメチル基、アセチルオキシメチル基、プロピオニルオキシメチル基、ブチリルオキシメチル基、ピバロイルオキシメチル基等のアシルオキシアルキル基;チオシアナトメチル基等のチオシアナトアルキル基;2−プロペニル基、2−ブテニル基等のアルケニル基;ホルミル基、アセチル基、プロピオニル基、ブチリル基、バレリル基、ピバロイル基等のアシル基;メトキシカルボニル基、エトキシカルボニル基、プロピルオキシカルボニル基、イソプロポキシカルボニル基、ブトキシカルボニル基、イソブトキシカルボニル基、t−ブトキシカルボニル基等のアルコキシカルボニル基;カルバモイル基;メチルカルバモイル基、エチルカルバモイル基、シクロヘキシルカルバモイル基等のアルキルアミノカルボニル基;ジメチルカルバモイル基、ジエチルカルバモイル基、エチルプロピルカルバモイル基、1−ピロリジニルカルボニル基、モルホリノカルボニル基等のジアルキルアミノカルボニル基;メチルスルホニル基、エチルスルホニル基、イソプロピルスルホニル基、ブチルスルホニル基、イソブチルスルホニル基等のアルキルスルホニル基等を例示することができる。
【0043】
5で表されるアルキル基としては、メチル基、エチル基、プロピル基、イソプロピル基、ブチル基、イソブチル基等を例示することができる。
【0044】
本発明の2−置換アミノピリミジノン誘導体及びそれらの製造中間体は下記製造方法に例示した方法によって製造することができる。
【0045】
【化25】
Figure 0004674676
【0046】
(式中、R、R1、R2、R2a、R3、R4a、R5、X及びYは前記と同じ意味を表す。)
【0047】
工程−1は、2−アルキルチオピリミジノン誘導体(2)と一般式(3)で示される芳香族アミン類とを反応させることにより、本発明の2−置換アミノピリミジノン誘導体(1a)を製造する工程である。また、工程−2は、2−アミノピリミジノン誘導体(4)と一般式(5)で示される芳香族ハロゲン化合物とを反応させることにより、本発明の2−置換アミノピリミジノン誘導体(1a)を製造する工程である。
【0048】
工程−1及び工程−2の反応は塩基の存在下に行うことが収率がよい点で好ましい。塩基としては、水素化ナトリウム、水素化カリウム、リチウムアミド、ナトリウムアミド、リチウムジイソプロピルアミド、ブチルリチウム、t−ブチルリチウム、トリメチルシリルリチウム、リチウムヘキサメチルジシラジド、炭酸ナトリウム、炭酸カリウム、酢酸ナトリウム、酢酸カリウム、ナトリウムメトキシド、ナトリウムエトキシド、カリウム−t−ブトキシド等のアルカリ金属塩基、トリエチルアミン、ジイソプロピルエチルアミン、トリブチルアミン、N−メチルモルホリン、N,N−ジメチルアニリン、N,N−ジエチルアニリン、4−t−ブチル−N,N−ジメチルアニリン、ピリジン、ピコリン、ルチジン、ジアザビシクロウンデセン(DBU)、ジアザビシクロオクタン(DBO)、イミダゾール等の有機塩基等を用いることができる。塩基の使用量は、基質に対して0.1〜2.0等量用いることにより、収率よく目的物を得ることができる。
【0049】
本反応は溶媒中で実施することができ、反応に害を及ぼさない溶媒であれば使用することができる。溶媒としては、N,N−ジメチルホルムアミド(DMF)、N,N−ジメチルアセトアミド、N−メチルピロリドン等のアミド系溶媒、アセトニトリル、プロピオニトリル等のニトリル系溶媒、ベンゼン、トルエン、キシレン、クロロベンゼン等の芳香族炭化水素系溶媒、ペンタン、ヘキサン、オクタン等の脂肪族炭化水素系溶媒、ジエチルエーテル、ジイソプロピルエーテル、テトラヒドロフラン(THF)、ジメトキシエタン(DME)、1,4−ジオキサン等のエーテル系溶媒、ジメチルスルホキシド(DMSO)、あるいはこれらの混合溶媒等の反応に害を及ぼさない溶媒であれば使用することができる。
【0050】
反応は、−78℃から溶媒還流温度の範囲から適宜選ばれた温度で行うことにより、収率よく目的物を得ることができる。反応終了後は、通常の抽出操作により目的物を得ることができるが、必要であればカラムクロマトグラフィーあるいは再結晶等により精製することもできる。
【0051】
工程−3は、2−置換アミノピリミジノン誘導体(1a)をハロゲン化し、本発明の2−置換アミノピリミジノン誘導体(1b)を製造する工程である。
【0052】
ハロゲン化はハロゲン化剤を用いることにより行うことができ、用いるハロゲン化剤としては、塩素、臭素、ヨウ素、フッ化カリウム、スルフリルクロリド、N−クロロスクシンイミド、N−ブロモスクシンイミド、N−ヨードスクシンイミド、t−ブチルハイポクロライト、ジエチルアミノサルファトリフルオリド、四塩化炭素/トリフェニルホスフィン、四臭化炭素/トリフェニルホスフィン等のハロゲン化試剤を用いることができる。ハロゲン化試剤の使用量は基質に対して1等量以上用いることにより、収率よく目的物を得ることができる。
【0053】
本反応は溶媒中で実施することもでき、反応に害を及ぼさない溶媒であれば使用することができる。溶媒としては、クロロベンゼン、ジクロロベンゼン等の芳香族炭化水素系溶媒、ペンタン、ヘキサン、オクタン等の脂肪族炭化水素系溶媒、ジエチルエーテル、ジイソプロピルエーテル、THF、DME、1,4−ジオキサン等のエーテル系溶媒、クロロホルム、塩化メチレン、四塩化炭素等のハロゲン系溶媒、酢酸、プロピオン酸等の有機酸系溶媒、あるいはこれらの混合溶媒等を用いることができる。
【0054】
反応は、0℃から溶媒還流温度の範囲から適宜選ばれた温度で行うことにより、収率よく目的物を得ることができる。反応終了後は、通常の抽出操作により目的物を得ることができるが、必要であればカラムクロマトグラフィーあるいは再結晶等により精製することもできる。
【0055】
工程−4は、2−置換アミノピリミジノン誘導体(1a)及び(1b)を原料に用い、塩基の存在下に試剤(6)と反応させ、本発明の2−置換アミノピリミジノン誘導体(1d)を製造する工程である。
【0056】
本反応は塩基の存在下に行う。塩基としては、水素化ナトリウム、水素化カリウム、リチウムアミド、ナトリウムアミド、リチウムジイソプロピルアミド、ブチルリチウム、t−ブチルリチウム、トリメチルシリルリチウム、リチウムヘキサメチルジシラジド、炭酸ナトリウム、炭酸カリウム、酢酸ナトリウム、酢酸カリウム、ナトリウムメトキシド、ナトリウムエトキシド、カリウム−t−ブトキシド等のアルカリ金属塩基、トリエチルアミン、ジイソプロピルエチルアミン、トリブチルアミン、N−メチルモルホリン、N,N−ジメチルアニリン、N,N−ジエチルアニリン、4−t−ブチル−N,N−ジメチルアニリン、ピリジン、ピコリン、ルチジン、DBU、DBO、イミダゾール等の有機塩基等を用いることができる。塩基は基質に対して1〜2等量用いることにより、収率よく目的物を得ることができる。
【0057】
本反応は溶媒中で実施することができ、反応に害を及ぼさない溶媒であれば使用することができる。溶媒としては、DMF、N,N−ジメチルアセトアミド、N−メチルピロリドン等のアミド系溶媒、アセトニトリル、プロピオニトリル等のニトリル系溶媒、ベンゼン、トルエン、キシレン、クロロベンゼン等の芳香族炭化水素系溶媒、ペンタン、ヘキサン、オクタン等の脂肪族炭化水素系溶媒、ジエチルエーテル、ジイソプロピルエーテル、THF、DME、1,4−ジオキサン等のエーテル系溶媒、DMSO、あるいはこれらの混合溶媒等を用いることができる。
【0058】
反応は、0℃から溶媒還流温度の範囲から適宜選ばれた温度で行うことにより、収率よく目的物を得ることができる。反応終了後は、通常の抽出操作により目的物を得ることができるが、必要であればカラムクロマトグラフィーあるいは再結晶等により精製することもできる。
【0059】
本反応においては、触媒として、18−クラウン−6、15−クラウン−5、12−クラウン−4等のポリエーテル類、テトラブチルアンモニウムブロミド、硫酸テトラブチルアンモニウム、テトラエチルアンモニウムヨージド等の第4級アンモニウム塩等を用いることにより、さらに収率よく目的物を得ることができる。
【0060】
上記製造方法において原料となる2−置換アミノ−4(3H)−ピリミジノン誘導体(2)は、特開平6−321913号、特開平7−89941号、WO98/51152号、WO98/51675号、特願平10−119917号、特願平10−321181号、特願平10−321181号公報記載の方法により製造することができる。また、一部は下記参考例に記載した方法により製造することができる。
【0061】
本発明の2−置換アミノピリミジノン誘導体(1)は、衛生害虫あるいは農園芸作物に有害な害虫、特に昆虫及びダニに対し低い薬剤濃度で高い防除効果を示す。
【0062】
防除対象の害虫としては、ハスモンヨトウ、コナガ、チャノコカクモンハマキ、コブノメイガ、ニカメイチュウ等の鱗翅目;トビイロウンカ、セジロウンカ等のウンカ類、ツマグロヨコバイ、チャノミドリヒメヨコバイ等のヨコバイ類、モモアカアブラムシ、ワタアブラムシ等のアブラムシ類、オンシツコナジラミ等のコナジラミ類、チャバネアオカメムシ等のカメムシ類等の半翅目;キスジノミハムシ、ウリハムシ、アズキゾウムシ等の甲虫目;イエバエ、アカイエカ等の双翅目;ワモンゴキブリ等の直翅目の昆虫の幼虫及び成虫、ならびに、ナミハダニ、ミカンハダニ、ミカンサビダニ、チャノホコリダニ等のダニ目の卵及び幼虫が挙げられる。
【0063】
従って、本発明の2−置換アミノピリミジノン誘導体(1)は、農園芸用の殺虫、殺ダニ剤として有用である。もっとも、本発明の化合物の防除対象となる昆虫やダニは上記に例示したものに限定されることはない。
【0064】
本発明の2−置換アミノピリミジノン誘導体(1)を農園芸用の殺虫、殺ダニ剤として使用する場合には、単独で用いてもよいが、好ましくは汎用の農薬補助剤を用いて製造した組成物の形態で使用する。本発明の殺虫、殺ダニ剤の形態は特に限定されないが、例えば乳剤、水和剤、粉剤、フロアブル剤、ドライフロアブル剤、細粒剤、粒剤、錠剤、油剤、噴霧剤、煙霧剤、ジャンボ剤等の形態とすることが好適である。また、本発明の2−置換アミノピリミジノン誘導体(1)の1種又は2種以上を有効成分として配合することができる。
【0065】
本発明の2−置換アミノピリミジノン誘導体(1)を有効成分として含有する殺虫、殺ダニ剤を製造するために用いられる農薬補助剤は、例えば、殺虫、殺ダニ剤の効果の向上、安定化、分散性の向上等の目的で使用することができる。農薬補助剤としては、例えば、担体(希釈剤)、展着剤、乳化剤、湿展剤、分散剤、崩壊剤等を用いることができる。
【0066】
液体担体としては、水、トルエン、キシレン等の芳香族炭化水素、メタノール、ブチルアルコール、グリコール等のアルコール類、アセトン、シクロヘキサノン等のケトン類、ジメチルホルムアミド等のアミド類、ジメチルスルホキシド等のスルホキシド類、メチルナフタレン、シクロヘキサン、動植物油、脂肪酸等を挙げることができる。また、固体担体としてはクレー、カオリン、タルク、珪藻土、シリカ、炭酸カルシウム、モンモリナイト、ベントナイト、長石、石英、アルミナ、鋸屑、ニトロセルロース、デンプン、アラビアゴム等を用いることができる。
【0067】
乳化剤、分散剤としては通常の界面活性剤を使用することができ、例えば、高級アルコール硫酸ナトリウム、ステアリルトリメチルアンモニウムクロリド、ポリオキシエチレンアルキルフェニルエーテル、ラウリルベタイン等の陰イオン系界面活性剤、陽イオン系界面活性剤、非イオン系界面活性剤、両性イオン系界面活性剤等を用いることができる。また、ポリオキシエチレンノニルフェニルエーテル、ポリオキシエチレンラウリルフェニルエーテル等の展着剤;ジアルキルスルホサクシネート等の湿展剤;カルボキシメチルセルロース、ポリビニルアルコール等の固着剤;リグニンスルホン酸ナトリウム、ラウリル硫酸ナトリウム等の崩壊剤を用いることができる。
【0068】
本発明の農園芸用の殺虫、殺ダニ剤における有効成分の含有量は0.01〜99.5%の範囲から選ばれ、製剤形態、施用方法等の種々の条件により適宜決定すればよいが、例えば、粉剤では約0.5〜20重量%程度、好ましくは1〜10重量%、水和剤では約1〜90重量%程度、好ましくは10〜80重量%、乳剤では約1〜90重量%程度、好ましくは10〜40重量%の有効成分を含有するように製造することが好適である。
【0069】
例えば、乳剤の場合、有効成分である本発明の2−置換アミノピリミジノン誘導体(1)に対して溶剤及び界面活性剤等を混合して原液の乳剤を製造することができ、さらにこの原液を使用に際して所定濃度に水で希釈して施用することができる。水和剤の場合、有効成分の2−置換アミノピリミジノン誘導体(1)、固形担体及び界面活性剤等を混合して原液を製造し、さらにこの原液を使用に際して所定濃度に水で希釈して施用することができる。粉剤の場合、有効成分の2−置換アミノピリミジノン誘導体(1)、固形担体等を混合してそのまま施用することができ、粒剤の場合には、有効成分の2−置換アミノピリミジノン誘導体(1)、固形担体及び界面活性剤等を混合して造粒することにより製造し、そのまま施用することができる。もっとも、上記の各製剤形態の製造方法は上記のものに限定されることはなく、有効成分の種類や施用目的等に応じて当業者が適宜選択することができるものである。
【0070】
本発明の農園芸用殺虫、殺ダニ剤には、有効成分である本発明の2−置換アミノピリミジノン誘導体(1)以外に、他の殺菌剤、殺虫剤、殺ダニ剤、除草剤、昆虫生育調整剤、肥料、土壌改良剤等の任意の有効成分を配合してもよい。
【0071】
本発明の農園芸用殺虫、殺ダニ剤の施用方法は特に限定されるものではなく、茎葉散布、水面施用、土壌処理、種子処理等のいずれの方法でも施用することができる。例えば、茎葉散布又は土壌処理の場合、0.001〜1000ppm、好ましくは0.01〜500ppmの濃度範囲の溶液を10アール当たり0.1〜5000L好ましくは10〜2000L程度の施用量で用いることができる。水面施用の場合の施用量は、通常、有効成分が0.01〜15%の粒剤では10アール当たり0.1〜10Kgである。土壌処理の場合、5〜1000ppmの濃度範囲の溶液を1m2当たり1〜10L程度の施用量で用いることができる。種子処理の場合、種子重量1Kg当たり10〜1000ppmの濃度範囲の溶液を10〜100mL程度施用処理することができる。
【0072】
【実施例】
【0073】
以下、本発明を実施例及び参考例によりさらに具体的に説明するが、本発明は以下の実施例及び参考例に限定されることはない。
実施例−1
【0074】
【化26】
Figure 0004674676
【0075】
2−アミノ−3,5−ジクロロピリジン(3.00g, 18.4mmol)のDMF(10mL)溶液に、室温撹拌下で水素化ナトリウム(60%油性, 0.96g, 23.9mmol)を加え、30分撹拌した後、3−メチル−2−メチルチオ−6−トリフルオロメチル−4(3H)−ピリミジノン(4.12g, 18.4mmol)を加え、60℃にて3時間加熱撹拌した。反応終了後、反応溶液を1N塩酸水溶液(100mL)に注ぎ、析出結晶を濾過した後エタノールを用いて再結晶し、2−(3,5−ジクロロピリジン−2−イル)アミノ−3−メチル−6−トリフルオロメチル−4(3H)−ピリミジノン[化合物番号1]の淡黄色固体(3.36g)を得た。Yield:54%;mp:188〜189℃;1H-NMR(CDCl3, TMS, ppm):δ3.60(s, 3H), 6.21(s, 1H), 7.80(d, J=2.4Hz, 1H), 8.05(d, J=2.4Hz, 1H).(アミノプロトンは帰属できなかった。)
実施例−2
【0076】
【化27】
Figure 0004674676
【0077】
2−(3,5−ジクロロピリジン−2−イル)アミノ−3−メチル−6−トリフルオロメチル−4(3H)−ピリミジノン(1.86g, 5.49mmol)のジクロロメタン(50mL)溶液に、室温撹拌下でスルフリルクロリド(1.11g, 8.23mmol)を加え、10時間撹拌した。反応終了後、析出結晶を濾過し、5−クロロ−2−(3,5−ジクロロピリジン−2−イル)アミノ−3−メチル−6−トリフルオロメチル−4(3H)−ピリミジノン[化合物番号2]の淡黄色固体(0.70g)を得た。Yield:34%;mp:231〜232℃;1H-NMR(CDCl3, TMS, ppm):δ3.68(s, 3H), 7.82(d, J=2.4Hz, 1H), 7.9(m, 1H).(アミノプロトンは帰属できなかった。)
実施例−3
【0078】
【化28】
Figure 0004674676
【0079】
2−アミノ−3,5−ジクロロピリジン(1.00g, 6.13mmol)のDMF(5mL)溶液に、室温撹拌下で水素化ナトリウム(60%油性, 0.32g, 7.98mmol)を加え、30分撹拌した後、3−ベンジル−2−メチルチオ−6−トリフルオロメチル−4(3H)−ピリミジノン(1.84g, 6.13mmol)を加え、60℃にて2時間加熱撹拌した。反応終了後、反応溶液を1N塩酸水溶液(100mL)に注ぎ、酢酸エチル(100mL)により抽出した。有機層を水(100mL)及び飽和食塩水(50mL×2)で洗浄し無水硫酸マグネシウムで乾燥した後、溶媒を減圧下で留去した。得られた粗生成物析出結晶をエタノールを用いて再結晶し、3−ベンジル−2−(3,5−ジクロロピリジン−2−イル)アミノ−6−トリフルオロメチル−4(3H)−ピリミジノン[化合物番号3]の淡黄色固体(1.58g)を得た。Yield:62%;mp:182〜183℃;1H-NMR(CDCl3, TMS, ppm):δ5.48(s, 2H), 6.22(s, 1H), 7.3(m, 3H), 7.5(m, 2H), 7.80(d, J=2.4Hz, 1H), 8.02(d, J=2.4Hz, 1H).(アミノプロトンは帰属できなかった。)
実施例−4
【0080】
【化29】
Figure 0004674676
【0081】
3−ベンジル−2−(3,5−ジクロロピリジン−2−イル)アミノ−6−トリフルオロメチル−4(3H)−ピリミジノン(1.00g, 2.41mmol)のジクロロメタン(50mL)溶液に、室温撹拌下でスルフリルクロリド(0.49g, 3.61mmol)を加え、10時間撹拌した。反応終了後、反応液を減圧留去し析出した結晶をエタノールを用いて洗浄し、3−ベンジル−5−クロロ−2−(3,5−ジクロロピリジン−2−イル)アミノ−6−トリフルオロメチル−4(3H)−ピリミジノン[化合物番号4]の淡黄色固体(0.30g)を得た。Yield:28%;mp:241〜242℃;1H-NMR(CDCl3, TMS, ppm):δ5.55(s, 2H), 7.3(m, 3H), 7.7(m, 2H), 7.8(m, 2H).(アミノプロトンは帰属できなかった。)
実施例−5
【0082】
【化30】
Figure 0004674676
【0083】
2−アミノ−3−クロロ−5−(トリフルオロメチル)ピリジン(3.00g, 15.3mmol)のDMF(10mL)溶液に、室温撹拌下で水素化ナトリウム(60%油性, 0.79g, 19.8mmol)を加え、30分撹拌した後、3−メチル−2−メチルチオ−6−トリフルオロメチル−4(3H)−ピリミジノン(3.42g, 15.3mmol)を加え、60℃にて2時間加熱撹拌した。反応終了後、反応溶液を1N塩酸水溶液(100mL)に注ぎ、析出結晶を濾過した後エタノールを用いて洗浄、乾燥し、2−{3−クロロ−5−(トリフルオロメチル)ピリジン−2−イル}アミノ−3−メチル−6−トリフルオロメチル−4(3H)−ピリミジノン[化合物番号5]の淡黄色固体(4.12g)を得た。Yield:72%;mp:169〜170℃;1H-NMR(CDCl3, TMS, ppm):δ3.67(s, 3H), 6.35(s, 1H), 7.96(d, J=2.1Hz, 1H), 8.21(br s, 1H).(アミノプロトンは帰属できなかった。)
実施例−6
【0084】
【化31】
Figure 0004674676
【0085】
2−{3−クロロ−5−(トリフルオロメチル)ピリジン−2−イル}アミノ−3−メチル−6−トリフルオロメチル−4(3H)−ピリミジノン(2.00g, 5.37mmol)のジクロロメタン(100mL)溶液に、室温撹拌下でスルフリルクロリド(1.09g, 8.05mmol)を加え、12時間撹拌した。反応終了後、反応溶液を減圧濃縮し、得られた結晶をエタノール洗浄し、5−クロロ−2−{3−クロロ−5−(トリフルオロメチル)ピリジン−2−イル}アミノ−3−メチル−6−トリフルオロメチル−4(3H)−ピリミジノン[化合物番号6]の淡黄色固体(0.80g)を得た。Yield:37%;mp:232〜233℃;1H-NMR(CDCl3, TMS, ppm):δ3.75(s, 3H), 7.96(d, J=2.1Hz, 1H), 8.0(br s, 1H).(アミノプロトンは帰属できなかった。)
実施例−7
【0086】
【化32】
Figure 0004674676
【0087】
2−アミノ−3−クロロ−5−(トリフルオロメチル)ピリジン(1.28g, 6.54mmol)のDMF(10mL)溶液に、室温撹拌下で水素化ナトリウム(60%油性, 0.34g, 8.50mmol)を加え、30分撹拌した後、3−シクロヘキシルメチル−2−メチルチオ−6−トリフルオロメチル−4(3H)−ピリミジノン(2.00g, 6.54mmol)を加え、60℃にて2時間加熱撹拌した。反応終了後、反応溶液を1N塩酸水溶液(100mL)に注ぎ、析出結晶を濾過した後エタノールを用いて再結晶し、2−{3−クロロ−5−(トリフルオロメチル)ピリジン−2−イル}アミノ−3−シクロヘキシルメチル−6−トリフルオロメチル−4(3H)−ピリミジノン[化合物番号7]の淡黄色固体(2.07g)を得た。Yield:69%;mp:173〜174℃;1H-NMR(CDCl3, TMS, ppm):δ1.2(m, 5H), 1.7(m, 5H), 2.0(m, 1H), 4.18(d, J=7.2Hz, 2H), 6.32(s, 1H), 7.94(s, 1H), 8.19(s, 1H).(アミノプロトンは帰属できなかった。)
実施例−8
【0088】
【化33】
Figure 0004674676
【0089】
2−{3−クロロ−5−(トリフルオロメチル)ピリジン−2−イル}アミノ−3−シクロヘキシルメチル−6−トリフルオロメチル−4(3H)−ピリミジノン(1.07g, 2.35mmol)のジクロロメタン(50mL)溶液に、室温撹拌下でスルフリルクロリド(0.48g, 3.53mmol)を加え、12時間撹拌した。反応終了後反応溶液を減圧濃縮し、得られた粗生成物をシリカゲルカラムクロマトグラフィー(酢酸エチル:ヘキサン=1:19)により精製し、5−クロロ−2−{3−クロロ−5−(トリフルオロメチル)ピリジン−2−イル}アミノ−3−シクロヘキシルメチル−6−トリフルオロメチル−4(3H)−ピリミジノン[化合物番号8]の淡黄色固体(0.30g)を得た。Yield:26%;mp:141〜142℃;1H-NMR(CDCl3, TMS, ppm):δ1.2(m, 5H), 1.7(m, 5H), 2.0(m, 1H), 4.26(d, J=7.2Hz, 2H), 7.94(d, J=1.8Hz, 1H), 8.0(m, 1H).(アミノプロトンは帰属できなかった。)
実施例−9
【0090】
【化34】
Figure 0004674676
【0091】
2−アミノ−3−クロロ−5−(トリフルオロメチル)ピリジン(1.00g, 5.09mmol)のDMF(10mL)溶液に、室温撹拌下で水素化ナトリウム(60%油性, 0.26g, 6.62mmol)を加え、30分撹拌した後、3−ベンジル−2−メチルチオ−6−トリフルオロメチル−4(3H)−ピリミジノン(1.53g, 5.09mmol)を加え、60℃にて2時間加熱撹拌した。反応終了後、反応溶液を1N塩酸水溶液(100mL)に注ぎ、酢酸エチル(100mL)により抽出した。有機層を、水(100mL)及び飽和食塩水(50mL×2)で洗浄し無水硫酸マグネシウムで乾燥した後、溶媒を減圧下で留去した。得られた粗生成物をエタノールを用いて再結晶し、3−ベンジル−2−{3−クロロ−5−(トリフルオロメチル)ピリジン−2−イル}アミノ−6−トリフルオロメチル−4(3H)−ピリミジノン[化合物番号9]の淡黄色固体(1.56g)を得た。Yield:68%;mp:129〜130℃;1H-NMR(CDCl3, TMS, ppm):δ5.54(s, 2H), 6.36(s, 1H), 7.3(m, 3H), 7.7(m, 2H), 7.96(d, J=1.8Hz, 1H), 8.19(br s, 1H).(アミノプロトンは帰属できなかった。)
実施例−10
【0092】
【化35】
Figure 0004674676
【0093】
3−ベンジル−2−{3−クロロ−5−(トリフルオロメチル)ピリジン−2−イル}アミノ−6−トリフルオロメチル−4(3H)−ピリミジノン(0.90g, 2.01mmol)のジクロロメタン(30mL)溶液に、室温撹拌下でスルフリルクロリド(0.41g, 3.01mmol)を加え、12時間撹拌した。反応終了後、反応溶液を減圧濃縮し、得られた結晶をヘキサン洗浄し、3−ベンジル−5−クロロ−2−{3−クロロ−5−(トリフルオロメチル)ピリジン−2−イル}アミノ−6−トリフルオロメチル−4(3H)−ピリミジノン[化合物番号9]の淡黄色固体(0.48g)を得た。Yield:49%;mp:142〜143℃;1H-NMR(CDCl3, TMS, ppm):δ5.61(s, 2H), 7.3(m, 3H), 7.7(m, 2H), 7.97(d, J=2.4Hz, 1H), 8.00(br s, 1H).(アミノプロトンは帰属できなかった。)
参考例−1
【0094】
【化36】
Figure 0004674676
【0095】
水素化ナトリウム(60%油性, 10.9g, 273mmol)のDMF(180mL)懸濁液を0℃で攪拌しながら、3−アミノ−4,4,4−トリフルオロクロトン酸エチル(46.2g, 252mmol)をゆっくり加えた。反応溶液を0℃に保ち10分間攪拌した後、アリルイソチオシアネート(25.0g, 252mmol)をゆっくりと加え、反応温度を徐々に室温に戻しながら、一晩攪拌した。反応終了後、DMFを減圧留去し、残渣に6N塩酸(200mL)を加え固体を析出させた。得られた固体を水及びヘキサンにより充分洗浄し、乾燥させることにより、3−アリル−2−メルカプト−6−トリフルオロメチル−4(3H)−ピリミジノンの茶色固体を得た。Yield:86%;mp:146〜149℃;1H-NMR(CDCl3, TMS, ppm):δ5.00(2H, d, J=5.8Hz), 5.29(1H, dd, J=1.0 and 10.3Hz), 5.37(1H, dd, J=1.0 and 17.3Hz), 5.84〜5.98(1H, m), 6.32(1H, s). (SH プロトンは観測されなかった。)
参考例−2
【0096】
【化37】
Figure 0004674676
【0097】
3−アリル−2−メルカプト−6−トリフルオロメチル−4(3H)−ピリミジノン(51.0g, 216mmol)のアセトニトリル(500mL)溶液に、炭酸カリウム(35.8g, 259mmol)とヨウ化メチル(36.8g, 259mmol)を加え、室温で一晩攪拌した。反応終了後、炭酸カリウムを濾別し、溶媒を減圧留去した後、1N塩酸(200mL)を加え、酢酸エチル(150mL×2)で抽出した。有機層を飽和食塩水(200mL)で洗浄後、無水硫酸ナトリウムで乾燥し、乾燥剤を濾別後、濾液を減圧濃縮することによって、3−アリル−2−メチルチオ−6−トリフルオロメチル−4(3H)−ピリミジノンの黒色液体を得た。Yield:87%;1H-NMR(CDCl3, TMS, ppm):δ2.61(3H, s), 4.68〜4.72(2H, m), 5.27〜5.34(2H, m), 5.79〜5.92(1H, m), 6.56(1H, s).
参考例−3
【0098】
【化38】
Figure 0004674676
【0099】
3−アリル−2−メチルチオ−6−トリフルオロメチル−4(3H)−ピリミジノン(5.00g, 20.0mmol)をエーテル(50mL)及び水(50mL)の混合溶液に溶解し、四酸化オスミウム(254mg, 1.00mmol)の水溶液(13mL)と過ヨウ素酸ナトリウム(8.60g, 40.2mmol)を順次加え、室温で一晩攪拌した。反応終了後、反応溶液に10%チオ硫酸ナトリウム水溶液(100mL)及び酢酸エチル(100mL)を加え、有機層を分離し、水層を酢酸エチル(50mL)で抽出した。有機層を合せ、飽和重曹水(100mL)及び飽和食塩水(100mL)で洗浄し、無水硫酸マグネシウムで乾燥した。乾燥剤を濾別後、濾液を減圧濃縮した。得られた粗生成物をシリカゲルカラム(ワコーゲルC−200,ヘキサン:酢酸エチル=4:1〜2:1)で精製し、{2−メチルチオ−6−トリフルオロメチル−4(3H)−ピリミジノン−3−イル}アセトアルデヒドの白色固体を得た。Yield:57%;mp:86〜88℃;1H-NMR(CDCl3, TMS, ppm):δ2.64(3H, s), 4.95(2H, s), 6.61(1H, s), 9.62(1H, s).
参考例−4
【0100】
【化39】
Figure 0004674676
【0101】
{2−メチルチオ−6−トリフルオロメチル−4(3H)−ピリミジノン−3−イル}アセトアルデヒド(5.50g, 21.8mmol)のエタノール溶液(150mL)を0℃に冷却し、水素化ホウ素ナトリウム(1.08g, 28.3mmol)を加え、0℃で1時間攪拌した。反応終了後、反応溶液に1N塩酸(300mL)を加え、酢酸エチル(150mL×2)で抽出した。有機層を飽和食塩水(300mL)で洗浄後、無水硫酸ナトリウムで乾燥した。乾燥剤を濾別後、濾液を減圧濃縮した。得られた粗生成物をシリカゲルカラム(ワコーゲルC−200,ヘキサン:酢酸エチル=7:3)で精製し、3−(2−ヒドロキシエチル)−2−メチルチオ−6−トリフルオロメチル−4(3H)−ピリミジノンの白色固体を得た。Yield:94%;mp:71〜73℃;1H-NMR(CDCl3, TMS, ppm):δ2.22(1H, s), 2.63(3H, s), 3.05〜4.03(2H, m), 4.32(2H, t, J=5.5Hz), 6.58(1H, s).
参考例−5
【0102】
【化40】
Figure 0004674676
【0103】
3−(2−ヒドロキシエチル)−2−メチルチオ−6−トリフルオロメチル−4(3H)−ピリミジノン(5.20g, 20.5mmol)の塩化メチレン溶液(100mL)を0℃に冷却し、トリフェニルホスフィン(8.77g, 33.4mmol)と四臭化炭素(13.4g, 40.4mmol)を加え、徐々に室温に戻しながら一晩攪拌した。反応終了後、沈殿物を濾過し溶媒を減圧濃縮した。得られた粗生成物をシリカゲルカラム(ワコーゲルC−200,ヘキサン:酢酸エチル=8:1)で精製し、3−(2−ブロモエチル)−2−メチルチオ−6−トリフルオロメチル−4(3H)−ピリミジノンの白色固体を得た。Yield:37%;mp:57〜58℃;1H-NMR(CDCl3, TMS, ppm):δ2.64(3H, s), 3.56〜3.61(2H, m), 4.40〜4.46(2H, m), 6.55(1H, s).
参考例−6
【0104】
【化41】
Figure 0004674676
【0105】
3−(2−ブロモエチル)−2−メチルチオ−6−トリフルオロメチル−4(3H)−ピリミジノン(2.37g, 7.47mmol)のTHF(30mL)溶液に、DBU(3.4mL)を加え、室温で一晩攪拌した。反応終了後、反応溶液に水(80mL)を加え、酢酸エチル(50mL×2)で抽出した。有機層を飽和食塩水(100mL)で洗浄後、無水硫酸ナトリウムで乾燥した。乾燥剤を濾別後、濾液を減圧濃縮した。得られた粗生成物をシリカゲルカラム(ワコーゲルC−200,ヘキサン:酢酸エチル=9:1)で精製し、2−メチルチオ−6−トリフルオロメチル−3−ビニル−4(3H)−ピリミジノンの白色固体を得た。Yield:62%;mp:91〜93℃;1H-NMR(CDCl3, TMS, ppm):δ2.56(3H, s), 5.71〜5.81(2H, m), 6.47(1H, dd, J=8.3 and 15.7Hz), 6.57(1H, s).
実施例−11
【0106】
【化42】
Figure 0004674676
【0107】
水素化ナトリウム(60%油性, 373mg, 9.33mmol)のDMF(20mL)懸濁液に、2−アミノ−3−クロロ−5−(トリフルオロメチル)ピリジン(1.66g, 8.47mmol)と2−メチルチオ−6−トリフルオロメチル−3−ビニル−4(3H)−ピリミジノン(2.0g, 8.47mmol)を0℃で加え、徐々に室温まで昇温し、そのままの温度で24時間撹拌した。反応終了後、反応溶液を1N塩酸水溶液(100mL)に注ぎ、酢酸エチル(100mL)を加え、有機層を分離した。水層を酢酸エチル(100mL)で抽出し、有機層を合わせ、飽和食塩水(100mL)で洗浄した。有機層を無水硫酸マグネシウムで乾燥し、濾過により乾燥剤を瀘別し、瀘液から溶媒を減圧下に除去した。得られた固体をヘキサン/エーテル(4/1)混合溶媒で洗浄した後充分乾燥させることにより、2−{3−クロロ−5−(トリフルオロメチル)ピリジン−2−イル}アミノ−6−トリフルオロメチル−3−ビニル−4(3H)−ピリミジノン[化合物番号11]の白色固体を得た。Yield:57%;mp:143〜146℃;1H-NMR(CDCl3, TMS, ppm):δ5.55(d, J=9.4Hz, 1H), 6.15(d, J=16.1Hz, 1H), 6.36(s, 1H), 7.14(dd, J=9.4 and 16.1Hz, 1H), 7.98(d, J=2.1Hz, 1H), 8.22(d, J=2.1Hz, 1H), 15.6(br s, 1H).
実施例−12
【0108】
【化43】
Figure 0004674676
【0109】
2−アミノ−4,6−ジメチルピリミジン(0.25g, 2.00mmol)のDMF(10mL)溶液に0℃で水素化ナトリウム(60%油性, 0.12g, 3.00mmol)を加え、30分間撹拌した後、3−エチル−2−メチルチオ−6−トリフルオロメチル−4(3H)−ピリミジノン(0.48g, 2.00mmol)を加え、室温で4時間、60℃で4時間撹拌した。反応終了後、反応溶液に水(10mL)及び酢酸エチル(10mL)を加えて有機層を分離し、水層を酢酸エチル(5mL)で抽出した。有機層を合わせ、水(20mL×2)で洗浄し、無水硫酸マグネシウムで乾燥した。乾燥剤を濾別した後、濾液を減圧濃縮し、得られた粗生成物をシリカゲルカラム(ワコーゲルC−200,酢酸エチル:ヘキサン=1:4〜1:2)で精製し、2−(4,6−ジメチルピリミジン−2−イル)アミノ−3−エチル−6−トリフルオロメチル−4(3H)−ピリミジノン[化合物番号12]の白色固体(0.23g)を得た。Yield:37%;mp:200〜201℃;1H-NMR(CDCl3, TMS, ppm):δ1.32(t, J=7.0Hz, 3H), 2.50(s, 6H), 4.42(q, J=7.0Hz, 2H), 6.33(s, 1H), 6.53(s, 1H).(アミノプロトンは帰属できなかった。)
実施例−13
【0110】
【化44】
Figure 0004674676
【0111】
2−アミノ−5−トリフルオロメチル−1,3,4−チアジアゾール(1.00g, 5.92mmol)のDMF(10mL)溶液に、室温撹拌下で水素化ナトリウム(60%油性, 0.31g, 7.69mmol)を加え、30分撹拌した後、3−メチル−2−メチルチオ−6−トリフルオロメチル−4(3H)−ピリミジノン(1.33g, 5.92mmol)を加え、60℃にて2時間加熱撹拌した。反応終了後、反応溶液を1N塩酸水溶液(100mL)に注ぎ、析出結晶を濾過した後トルエンを用いて再結晶し、2−(5−トリフルオロメチル−1,3,4−チアジアゾール−2−イル)アミノ−3−メチル−6−トリフルオロメチル−4(3H)−ピリミジノン[化合物番号13]の淡黄色固体(1.55g)を得た。Yield:76%;mp:232〜233℃;1H-NMR(CDCl3, TMS, ppm):δ3.62(s, 3H), 6.45(s, 1H).(アミノプロトンは帰属できなかった。)
実施例−14
【0112】
【化45】
Figure 0004674676
【0113】
3−メチル−6−トリフルオロメチル−2−(5−トリフルオロメチル−1,3,4−チアジアゾール−2−イル)アミノ−4(3H)−ピリミジノン(0.90g, 2.61mmol)のジクロロメタン(30mL)溶液に、室温撹拌下でスルフリルクロリド(0.53g, 3.91mmol)を加え、10時間撹拌した。反応終了後、析出結晶を濾過し、5−クロロ−3−メチル−6−トリフルオロメチル−2−(5−トリフルオロメチル−1,3,4−チアジアゾール−2−イル)アミノ−4(3H)−ピリミジノン[化合物番号14]の淡黄色固体(0.36g)を得た。Yield:36%;mp:255〜256℃;1H-NMR(CDCl3, TMS, ppm):δ3.68(s, 3H).(アミノプロトンは帰属できなかった。)
実施例−15
【0114】
【化46】
Figure 0004674676
【0115】
2−アミノ−5−トリフルオロメチル−1,3,4−チアジアゾール(1.00g, 5.92mmol)のDMF(10mL)溶液に、室温撹拌下で水素化ナトリウム(60%油性, 0.31g, 7.69mmol)を加え、30分撹拌した後、3−ベンジル−2−メチルチオ−6−トリフルオロメチル−4(3H)−ピリミジノン(1.78g, 5.92mmol)を加え、60℃にて2時間加熱撹拌した。反応終了後、反応溶液を1N塩酸水溶液(100mL)に注ぎ、析出結晶を濾過した後トルエンを用いて再結晶し、3−ベンジル−6−トリフルオロメチル−2−(5−トリフルオロメチル−1,3,4−チアジアゾール−2−イル)アミノ−4(3H)−ピリミジノン[化合物番号15]の淡黄色固体(1.67g)を得た。Yield:67%;mp:244〜245℃;1H-NMR(CDCl3, TMS, ppm):δ5.45(s, 2H), 6.47(s, 1H), 7.3(m, 3H), 7.5(m, 2H).(アミノプロトンは帰属できなかった。)
実施例−16
【0116】
【化47】
Figure 0004674676
【0117】
3−ベンジル−6−トリフルオロメチル−2−(5−トリフルオロメチル−1,3,4−チアジアゾール−2−イル)アミノ−4(3H)−ピリミジノン(1.00g, 2.37mmol)のジクロロメタン(30mL)溶液に、室温撹拌下でスルフリルクロリド(0.48g, 3.56mmol)を加え、10時間撹拌した。反応終了後、析出結晶を濾過し、3−ベンジル−5−クロロ−6−トリフルオロメチル−2−(5−トリフルオロメチル−1,3,4−チアジアゾール−2−イル)アミノ−4(3H)−ピリミジノン[化合物番号16]の淡黄色固体(0.80g)を得た。Yield:74%;mp:245〜246℃;1H-NMR(CDCl3, TMS, ppm):δ5.48(s, 2H), 7.3(m, 3H), 7.5(m, 2H).(アミノプロトンは帰属できなかった。)
実施例−17
【0118】
【化48】
Figure 0004674676
【0119】
2−アミノベンゾチアゾール(0.45g, 3.00mmol)のDMF(8mL)溶液に0℃で水素化ナトリウム(60%油性, 0.14g, 3.50mmol)を加え、30分間撹拌した後、3−メチル−2−メチルスルホニル−6−トリフルオロメチル−4(3H)−ピリミジノン(0.74g, 3.00mmol)を加え、60℃で4時間撹拌した。反応終了後、反応溶液に水(10mL)及び酢酸エチル(10mL)を加えて有機層を分離し、水層を酢酸エチル(10mL)で抽出した。有機層を合わせ、水(20mL)及び飽和食塩水(20mL)で洗浄し、無水硫酸ナトリウムで乾燥した。乾燥剤を濾別した後、濾液を減圧濃縮し、得られた粗生成物をシリカゲルカラム(ワコーゲルC−200,酢酸エチル:ヘキサン=1:1)で精製することにより、2−(ベンゾチアゾール−2−イル)アミノ−3−メチル−6−トリフルオロメチル−4(3H)−ピリミジノン[化合物番号17]の白色固体(0.10g)を得た。Yield:10%;mp:173〜174℃;1H-NMR(CDCl3, TMS, ppm):δ3.58(s, 3H), 6.78(d, J=6.2Hz, 1H), 6.92(s, 1H), 7.08〜7.48(m, 3H), 7.52(br s, 1H).
参考例−7
【0120】
【化49】
Figure 0004674676
【0121】
水素化ナトリウム(60%油性, 1.32g, 33mmol)のDMF(70mL)懸濁液を0℃で撹拌しながら、3−アミノ−4,4,5,5,5−ペンタフルオロプロピオン酸エチル(6.99g, 30.0mmol)をゆっくり加えた。反応溶液を0℃に保ち10分間撹拌した後、エチルイソチオシアネート(2.35mL, 27.0mmol)のDMF(20mL)溶液をゆっくりと加え、反応温度を徐々に室温に戻しながら、12時間撹拌した。反応終了後、DMFを減圧留去し、残渣に2N塩酸(200mL)を加え、析出した固体を瀘取し、水とヘキサンにより洗浄した後、充分乾燥させることにより、3−エチル−2−メルカプト−6−ペンタフルオロエチル−4(3H)−ピリミジノンの白色固体(6.53g)を得た。Yield:88%;mp:143〜145℃;1H-NMR(CDCl3, TMS, ppm):δ1.32(t, J=7.1Hz, 3H), 4.44(q, J=7.1Hz, 2H), 6.28(s, 1H), 9.45(br s, 1H).
得られた3−エチル−2−メルカプト−6−ペンタフルオロエチル−4(3H)−ピリミジノン(6.31g, 23.0mmol)のDMF(70mL)溶液に炭酸カリウム(3.81g, 27.6mmol)を加えた後、氷冷下で撹拌しながらヨウ化メチル(1.43ml, 23.0mmol)を加え、氷冷下で30分間、室温で12時間撹拌した。反応終了後、DMFを減圧留去し、残渣に水(70ml)およびエーテル(100ml)を加え有機層を分離し、水層をエーテル(50mL×3)で抽出した。有機層を合わせ、飽和食塩水(100mL)で洗浄後、無水硫酸ナトリウムで乾燥した。乾燥剤を濾別後、濾液を減圧濃縮した。得られた粗生成物をシリカゲルカラム(ワコーゲルC−200,酢酸エチル:ヘキサン=1:5)で精製し、3−エチル−2−メチルチオ−6−ペンタフルオロエチル−4(3H)−ピリミジノンの粘稠性物質(5.92g)を得た。Yield:89%;1H-NMR(CDCl3, TMS, ppm):δ1.36(t, J=7.1Hz, 3H), 2.58(s, 3H), 4.13(q, J= 7.1Hz, 2H), 6.59(s, 1H).
実施例−18
【0122】
【化50】
Figure 0004674676
【0123】
水素化ナトリウム(60%油性, 0.32g, 8.0mmol)のDMF(30mL)懸濁液に2−アミノ−3−クロロ−5−(トリフルオロメチル)ピリジン(0.79g, 4.0mmol)を加え、0℃で30分間撹拌した。次いで、先に得られた3−エチル−2−メチルチオ−6−ペンタフルオロエチル−4(3H)−ピリミジノン(1.15g, 4.0mmol)のDMF(10mL)溶液をゆっくり加えた。反応温度を徐々に室温に戻しながら1時間撹拌し、さらに70℃で6時間撹拌した。反応終了後、DMFを減圧留去し、残渣に2N塩酸(50mL)を加え、析出した固体を瀘取し、水とヘキサンにより洗浄した後、充分乾燥させることにより、2−{3−クロロ−5−(トリフルオロメチル)ピリジン−2−イル}アミノ−3−エチル−6−ペンタフルオロエチル−4(3H)−ピリミジノン[化合物番号18]の淡黄色固体(0.55g)を得た。Yield:32%;mp:136〜138℃;1H-NMR(CDCl3, TMS, ppm):δ1.36(t, J=7.0Hz, 3H), 4.40(q, J=7.0Hz, 2H), 6.38(s, 1H), 7.94(d, J=2.1Hz, 1H), 8.10(s, 1H), 15.65(br s, 1H).
【0124】
以下、本発明の農園芸用殺虫、殺ダニ剤の製剤例及び試験例を示す。
製剤例−1:水和剤
本発明化合物を20重量部、カープレックス#80(ホワイトカーボン、塩野義製薬株式会社、商品名)20重量部、STカオリンクレー(カオリナイト、土屋カオリン社、商品名)52重量部、ソルポール9047K(アニオン性界面活性剤、東邦化学株式会社、商品名)5重量部、ルノックスP65L(アニオン性界面活性剤、東邦化学株式会社、商品名)3重量部を配合し、均一に混合粉砕して、有効 成分20重量%の水和剤を得た。
製剤例−2:粉剤
本発明化合物を2重量部、クレー(日本タルク社製)93重量部、カープレックス#80(ホワイトカーボン、塩野義製薬株式会社、商品名)5重量部を均一に混合粉砕して、有効成分2重量%の粉剤を製造した。
製剤例−3:乳剤
本発明化合物を20重量部に、キシレン35重量部及びジメチルホルムアミド30重量部からなる混合溶媒に添加溶解し、これにソルポール3005X(非イオン性界面活性剤とアニオン性界面活性剤の混合物、東邦化学株式会社、商品名) 15重量部を加えて、有効成分20重量%の乳剤を得た。
製剤例−4:フロアブル剤
本発明化合物を30重量部とソルポール9047K(同上)5重量部、ソルボンT−20(非イオン性界面活性剤、東邦化学株式会社、商品名)3重量部、エチレングリコール8重量部及び水44重量部をダイノミル(シンマルエンタープライゼス社製)で湿式粉砕し、このスラリー状混合物に1重量%キサンタンガム(天然高分子)水溶液10重量部を加え、良く混合粉砕して、有効成分20重量%のフロアブル剤を得た。
【0125】
試験例−1:コナガの幼虫に対する殺虫効果
製剤例−1の処方に従って製造した本発明の殺虫剤(水和剤)の水希釈液中に、キャベツ切葉(直径6cm)を1分間浸漬した。浸漬後風乾しプラスチックカップ(内径7cm)にいれ、このカップ内にコナガの3令幼虫を5頭放虫した(1濃度、2反復)。放虫4日後に幼虫の生死及び苦悶を調査し、苦悶虫を1/2頭死として殺虫率(%)を求めた。結果を表−1に示す。
【0126】
Figure 0004674676
【0127】
試験例−2:ハスモンヨトウの幼虫に対する殺虫効果
製剤例−1の処方に従って製造した本発明の殺虫剤(水和剤)の水希釈液中に、キャベツ切葉(直径6cm)を1分間浸漬した。浸漬後風乾しプラスチックカップ(内径7cm)にいれ、このカップ内にハスモンヨトウの3令幼虫を5頭放虫した(1濃度、2反復)。25℃の恒温室内に保持し、放虫5日後に幼虫の生死及び苦悶を調査し、苦悶虫を1/2頭死として殺虫率(%)を求めた。結果を表−2に示す。
【0128】
Figure 0004674676
【0129】
試験例−3:アズキゾウムシの成虫に対する殺虫効果
ガラス円筒(内径3cm×長さ15cm)にあずき豆2個を入れ、アズキゾウムシ成虫を10頭放虫した。製剤例−3の処方に従って製造した本発明の殺虫剤(乳剤)の水希釈液(0.3mL)を上記のガラス円筒に散布塔(みずほ理化製)を用いて散布した(1濃度、2反復)。25℃の恒温室内に保持し、処理4日後に幼虫の生死及び苦悶を調査し、苦悶虫を1/2頭死として殺虫率(%)を求めた。結果を表−3に示す。
【0130】
Figure 0004674676
【0131】
【発明の効果】
本発明の2−置換アミノピリミジノン誘導体を有効成分とする殺虫、殺ダニ剤は、各種の農園芸における害虫やダニ類に対して極めて優れた防除効果を有し、農園芸用の殺虫、殺ダニ剤として有用である。[0001]
BACKGROUND OF THE INVENTION
The present invention relates to 2-substituted aminopyrimidinone derivatives and intermediates for production thereof, and insecticides and acaricides containing them as active ingredients.
[0002]
[Prior art]
Conventionally, in the field of agriculture and horticulture, insecticides and acaricides for the purpose of controlling various pests or weeds have been developed and put into practical use. However, conventionally used agricultural and horticultural insecticides and acaricides are not necessarily satisfactory in terms of effects, spectrum, residual effects, and the like. Moreover, it cannot be said that the social request, such as the number of times of application and the amount of applied medicine, is sufficiently satisfied.
[0003]
In addition, the emergence of pests that have acquired resistance to conventionally used agricultural chemicals is also a problem. For example, in the cultivation of vegetables, fruit trees, flower buds, tea, wheat, rice, etc., organic phosphorus agents (fenitrothion, malathion, prothiophos, DDVP, etc.), pyrethroids (permethrin, cypermeline, fenvalerate, cyhalothrin, etc.), benzoyl ureas (Diflubenzuron, teflubenzuron, chlorfluazuron, etc.), nereistoxin (cartap, bensultap, etc.) pests that have acquired resistance to pesticides and the like have become difficult year after year.
[0004]
In addition, there are some pesticides (such as dithiocarbamate and phthalimide pesticides) for which pests have not yet acquired resistance, but these are generally preferred from the viewpoint of environmental pollution and the like because they have a large amount of application and the number of applications. Absent. Therefore, the development of new insecticides that show sufficient control effects at low doses and have little adverse impact on the environment against various pests that have acquired resistance to conventional agricultural and horticultural insecticides and acaricides. Longed for. As for the acaricide, it shows an excellent control effect against mites that are resistant to conventional general acaricides, and development of a highly safe acaricide is expected.
[0005]
On the other hand, International Patent Application No. WO93 / 21162 (JP-A-6-321913), JP-A-7-89941, WO98 / 51152, WO98 / 51675, Japanese Patent Application No. 10-119917, Japanese Patent Application No. 10- No. 332181 and Japanese Patent Application No. 10-321822 disclose 2-arylaminopyrimidinone derivatives having a structure similar to that of the compound of the present invention, which is represented by the general formula (1) of the present invention. There are no reports on 2-substituted aminopyrimidinone derivatives.
[0006]
[Problems to be solved by the invention]
An object of the present invention is to provide novel insecticides and acaricides that exhibit high control effects against various pests that are resistant to conventional agricultural and horticultural insecticides and acaricides, and also have high safety against crops. There is.
[0007]
[Means for Solving the Problems]
As a result of intensive studies to solve the above problems, the present inventors have found that a 4-pyrimidinone derivative having an aromatic group on the 2-position nitrogen atom as represented by the following general formula (1) has the above-described characteristics. The compound was found to be a compound and the present invention was completed.
[0008]
That is, the present invention relates to the general formula (1)
[0009]
Embedded image
Figure 0004674676
[0010]
(In the formula, R represents an optionally substituted aromatic group. R 1 Is a halogen atom; C 1 ~ C Four Represents a haloalkyl group or an optionally substituted phenyl group, R 2 Represents a hydrogen atom or a halogen atom. R Three Is optionally substituted C 1 ~ C 6 Alkyl group; C which may be substituted Three ~ C 8 A cycloalkyl group; an optionally substituted vinyl group; an optionally substituted C Three ~ C 6 An alkenyl group; optionally substituted C Three ~ C 6 Alkynyl group; C which may be substituted 7 ~ C 11 An aralkyl group; an optionally substituted phenyl group; R Four Is a hydrogen atom; C 1 ~ C Four Alkyl group; C 1 ~ C Four Haloalkyl group; (C 1 ~ C Four Alkoxy) C 1 ~ C Four Alkyl group; (C 1 ~ C Four Haloalkoxy) C 1 ~ C Four Alkyl group; C 1 ~ C Four Alkoxy (C 1 ~ C Four Alkoxy) C 1 ~ C Four Alkyl group; (C 1 ~ C Four Alkylthio) C 1 ~ C Four Alkyl group; (C 1 ~ C Five Acyloxy) C 1 ~ C Four Alkyl group; thiocyanato (C 1 ~ C Four Alkyl) group; C Three ~ C Four Alkenyl group; C 1 ~ C Five Acyl group; (C 1 ~ C Four Alkoxy) carbonyl group; aminocarbonyl group; (C 1 ~ C Four Alkyl) aminocarbonyl group; di (C 1 ~ C Four Alkyl) aminocarbonyl group; (C 1 ~ C Four Represents an alkyl) sulfonyl group. It is related with the 2-substituted amino pyrimidinone derivative shown by this.
[0011]
Furthermore, the present invention relates to a general formula (2)
[0012]
Embedded image
Figure 0004674676
[0013]
(Wherein R 1 And R Three Represents the same meaning as described above. R Five Is C 1 ~ C Four Represents an alkyl group. In the presence of a base, a 2-alkylthiopyrimidinone derivative represented by the general formula (3)
[0014]
Embedded image
Figure 0004674676
[0015]
(Wherein R represents the same meaning as described above), and is reacted with an amine represented by the general formula (1a)
[0016]
Embedded image
Figure 0004674676
[0017]
(Where R, R 1 And R Three Represents the same meaning as described above. And a halogenated product of the 2-substituted aminopyrimidinone derivative represented by formula (1b):
[0018]
Embedded image
Figure 0004674676
[0019]
(Where R, R 1 And R Three Represents the same meaning as described above. R 2a Represents a halogen atom. And 2-substituted aminopyrimidinone derivatives represented by formula (I).
[0020]
The present invention also provides a general formula (4)
[0021]
Embedded image
Figure 0004674676
[0022]
(Wherein R 1 And R Three Represents the same meaning as described above. And 2-aminopyrimidinone derivatives represented by the general formula (5)
[0023]
Embedded image
Figure 0004674676
[0024]
(In the formula, R represents the same meaning as described above. X represents a halogen atom) and is reacted with an aromatic halogen compound represented by the general formula (1a).
[0025]
Embedded image
Figure 0004674676
[0026]
(Where R, R 1 And R Three Represents the same meaning as described above. And 2-substituted aminopyrimidinone derivatives represented by formula (I).
[0027]
Furthermore, the present invention provides a compound of the general formula (1c)
[0028]
Embedded image
Figure 0004674676
[0029]
(Where R, R 1 , R 2 And R Three Represents the same meaning as described above. In the presence of a base, a 2-substituted aminopyrimidinone derivative represented by the general formula (6)
[0030]
Embedded image
Figure 0004674676
[0031]
(Wherein R 4a Is R except hydrogen atom Four Y represents a leaving group. And the compound represented by formula (1d)
[0032]
Embedded image
Figure 0004674676
[0033]
(Where R, R 1 , R 2 , R Three And R 4a Represents the same meaning as described above. It is related with the method of manufacturing the 2-substituted amino pyrimidinone derivative shown by this.
[0034]
The present invention also provides a general formula (1)
[0035]
Embedded image
Figure 0004674676
[0036]
(Where R, R 1 , R 2 , R Three And R Four Represents the same meaning as described above. It is related with the insecticide and acaricide which use 2-substituted amino pyrimidinone derivative shown by this as an active ingredient. The present invention is described in further detail below.
[0037]
DETAILED DESCRIPTION OF THE INVENTION
In the 2-substituted aminopyrimidinone derivative which is the compound of the present invention, examples of the optionally substituted aromatic group represented by R include a hydrocarbon aromatic group such as a naphthyl group and an anthranyl group, a furyl group, and a pyrrolyl group. Group, thienyl group, imidazolyl group, pyrazolyl group, thiazolyl group, isothiazolyl group, oxazolyl group, isoxazolyl group, triazolyl group, tetrazolyl group, oxadiazolyl group, thiadiazolyl group, pyridyl group, pyrazinyl group, pyrimidinyl group, pyridazinyl group, etc. Examples thereof include aromatic aromatic groups and benzolog derivatives thereof, and aromatic groups fused with these. These aromatic groups have a halogen atom; C 1 ~ C Four Alkyl group; C 1 ~ C Four Haloalkyl group; C Three ~ C Five Polymethylene group; (C 1 ~ C Four Alkoxy) C 1 ~ C Four Alkyl group; C Three ~ C 6 Alkenyl group; C Three ~ C 6 Alkynyl group; C 1 ~ C Five Acyl group; carboxy group; (C 1 ~ C Four Alkoxy) carbonyl group; cyano group; hydroxyl group; C 1 ~ C Four Alkoxy group; C 1 ~ C Four Haloalkoxy group; (C 1 ~ C Four Alkoxy) C 1 ~ C Four Alkoxy group; carboxy C 1 ~ C Four An alkoxy group; (C 1 ~ C Four Alkoxy) carbonyl C 1 ~ C Four Alkoxy group; C Three ~ C 6 Alkenyloxy group; C Three ~ C 6 Alkynyloxy group; phenyloxy group which may be substituted; C 1 ~ C Five Acyloxy group; mercapto group; C 1 ~ C Four Alkylthio group; C 1 ~ C Four Haloalkylthio group; C 1 ~ C Four Alkylsulfinyl group; C 1 ~ C Four Haloalkylsulfinyl group; C 1 ~ C Four Alkylsulfonyl group; C 1 ~ C Four Haloalkylsulfonyl group; amino group; C 1 ~ C Four Alkylamino group; di (C 1 ~ C Four Alkyl) amino group; C 1 ~ C Five Acylamino group; C 1 ~ C Four Alkylsulfonylamino group; one or more of them may be substituted with a nitro group or the like.
[0038]
Furthermore, specific examples of these substituents include halogen atoms such as fluorine atom, chlorine atom, bromine atom and iodine atom; methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group and s-butyl group. T-butyl group alkyl group; haloalkyl group such as trifluoromethyl group and 2-chloroethyl group; polymethylene group such as trimethylene group, tetramethylene group and pentamethylene group; alkenyl group such as 2-propenyl group; propargyl group and the like An alkynyl group; an acyl group such as a formyl group or an acetyl group; a carboxy group; an alkoxycarbonyl group such as a methoxycarbonyl group or an ethoxycarbonyl group; a cyano group; a hydroxyl group; a methoxy group, an ethoxy group, a propoxy group, an isopropoxy group, t- Alkoxy groups such as butoxy group; trifluoromethoxy group, difluoro Haloalkoxy groups such as methoxy group, 2,2,2-trifluoroethoxy group; carboxyalkoxy groups such as carboxymethoxy group and 1- (carboxy) ethoxy group; alkoxycarbonylalkoxy such as methoxycarbonylmethoxy group and ethoxycarbonylmethoxy group Groups; alkenyloxy groups such as 2-propenyloxy group and 2-methyl-2-propenyloxy group; alkynyloxy groups such as 2-propynyloxy group and 1-methyl-2-propynyloxy group; phenyloxy group, 4- Phenyloxy group which may be substituted such as methylphenyloxy group, 3-chlorophenyloxy group, 2-fluorophenyloxy group, 4-fluorophenyloxy group; acyloxy group such as acetoxy group, propionyloxy group; mercapto group; Methylthio group, ethyl Alkylthio groups such as thio groups; haloalkylthio groups such as trifluoromethylthio groups; alkylsulfonyl groups such as methylsulfonyl groups and ethylsulfonyl groups; haloalkylsulfonyl groups such as trifluoromethylsulfonyl groups; amino groups; methylamino groups, ethylamino Group, alkylamino group such as propylamino group, isopropylamino group and butylamino group; dialkylamino group such as dimethylamino group, diethylamino group and methylpropylamino group; acylamino group such as acetylamino group and propionylamino group; Examples thereof include alkylsulfonylamino groups such as amino group and ethylsulfonylamino group, and nitro groups.
[0039]
R 1 Specific examples of these include halogen atoms such as fluorine atom, chlorine atom and bromine atom, fluoromethyl group, chloromethyl group, bromomethyl group, trichloromethyl group, trifluoromethyl group, 1-chloroethyl group, 2-chloroethyl group, 3 -Haloalkyl groups such as chloropropyl group and pentafluoroethyl group; phenyl group, 2-fluorophenyl group, 2-chlorophenyl group, 2-bromophenyl group, 3-fluorophenyl group, 3-chlorophenyl group, 4-fluorophenyl group 4-chlorophenyl group, 4-bromophenyl group, 2,4-difluorophenyl group, 2,4-dichlorophenyl group, 3,5-difluorophenyl group, 3,5-dichlorophenyl group, 3-chloro-2,4- Difluorophenyl group, 2,4,5-trichlorophenyl group, 2,4-dichloro-3-methyl Phenyl group, 2,4-dichloro-5-isopropyloxyphenyl group, 2-fluoro-4-chloro-5-isopropyloxyphenyl group, 2-fluoro-4-chloro-5-cyclopentyloxyphenyl group, 2-fluoro- 4-chloro-5-propargyloxyphenyl group, 2-fluoro-4-trifluoromethylphenyl group, 2-chloro-4-trifluoromethylphenyl group, 2-chloro-5-trifluoromethylphenyl group, 2-fluoro -5-nitrophenyl group, 2,4-difluoro-5-nitrophenyl group, 2-methylphenyl group, 3-methylphenyl group, 4-methylphenyl group, 2,4-dimethylphenyl group, 4-ethylphenyl group 4-isopropylphenyl group, 4-t-butylphenyl group, 2-trifluoromethylphenyl group, 3- Trifluoromethylphenyl group, 4-trifluoromethylphenyl group, 2,4-bis (trifluoromethyl) phenyl group, 3,5-bis (trifluoromethyl) phenyl group, 2-acetylphenyl group, 4-acetylphenyl Group, 4-isovalerylphenyl group, 2-methoxycarbonylphenyl group, 2-ethoxycarbonylphenyl group, 3-methoxycarbonylphenyl group, 4-methoxycarbonylphenyl group, 2-carboxyphenyl group, 4-carboxyphenyl group, 2-cyanophenyl group, 4-cyanophenyl group, 2-methoxyphenyl group, 3-methoxyphenyl group, 4-methoxyphenyl group, 3,4-dimethoxyphenyl group, 4-isopropyloxyphenyl group, 4-t-butyl Oxyphenyl group, 3-trifluoromethyloxyphenyl group 4-trifluoromethyloxyphenyl group, 3-phenoxyphenyl group, 4-phenoxyphenyl group, 2-methylthiophenyl group, 4-methylthiophenyl group, 2-methylsulfinylphenyl group, 4-methylsulfinylphenyl group, 2-methyl Sulfonylphenyl group, 4-methylsulfonylphenyl group, 4-trifluoromethylthiophenyl group, 4-trifluoromethylsulfinylphenyl group, 4-trifluoromethylsulfonylphenyl group, 2-nitrophenyl group, 4-nitrophenyl group, etc. Preferred examples include a halogen atom, particularly a chlorine atom, and a haloalkyl group, particularly a trifluoromethyl group, a trichloromethyl group, and a pentafluoroethyl group.
[0040]
R 2 Examples of the halogen atom represented by the formula include a fluorine atom, a chlorine atom, a bromine atom, and an iodine atom, but a chlorine atom or a bromine atom is preferable from the viewpoint of ease of synthesis and strength of activity.
[0041]
R Three As methyl, ethyl, propyl, isopropyl, butyl, isobutyl, s-butyl, t-butyl, cyclopropylmethyl, pentyl, hexyl, cyclohexylmethyl, 2,2- An optionally substituted alkyl group such as a dimethoxyethyl group or a 2,2-diethoxyethyl group; cyclopropyl group, methylcyclopropyl group, dimethylcyclopropyl group, cyclobutyl group, cyclopentyl group, 3-methylcyclopentyl group, cyclohexyl An optionally substituted cycloalkyl group; a vinyl group, a 1-methylvinyl group, a 1-ethylvinyl group, a 1-chlorovinyl group, a 2-methoxyvinyl group, a 2-ethoxyvinyl group, etc. Vinyl group; 2-propenyl group, 2-chloro-2-propenyl group, 3-chloro-2 An optionally substituted alkenyl group such as propenyl group, 2-methyl-2-propenyl group, 2-butenyl group, 3-butenyl group, 3-methyl-3-butenyl group, 4-chloro-2-butenyl group; An optionally substituted alkynyl group such as propargyl group, 3-bromopropargyl group, 1-butyn-3-yl group, 2-butynyl group, 4-bromo-2-butynyl group; benzyl group, 2-fluorobenzyl group 3-fluorobenzyl group, 4-fluorobenzyl group, 2-chlorobenzyl group, 3-chlorobenzyl group, 4-chlorobenzyl group, 2-bromobenzyl group, 3-bromobenzyl group, 4-bromobenzyl group, 3 , 5-difluorobenzyl group, 3,5-dichlorobenzyl group, 3,5-dibromobenzyl group, 2-methylbenzyl group, 3-methylbenzyl group, 4-methyl Benzyl group, 2,4-dimethylbenzyl group, 3,5-dimethylbenzyl group, 2-trifluoromethylbenzyl group, 3-trifluoromethylbenzyl group, 4-trifluoromethylbenzyl group, 3,5-bis (tri Fluoromethyl) benzyl group, 2,4-bis (trifluoromethyl) benzyl group, 2-methoxycarbonylbenzyl group, 3-methoxycarbonylbenzyl group, 4-methoxycarbonylbenzyl group, 3-carboxybenzyl group, 4-carboxybenzyl Group, 3-cyanobenzyl group, 4-cyanobenzyl group, 2-methoxybenzyl group, 3-methoxybenzyl group, 4-methoxybenzyl group, 3,4-dimethoxybenzyl group, 4-trifluoromethoxybenzyl group, 4- Phenoxybenzyl group, 4-methylthiobenzyl group, 2-nitrobenzyl group, -Nitrobenzyl group, 4-nitrobenzyl group, α-phenethyl group, 1- (2-fluorophenyl) ethyl group, 1- (2-chlorophenyl) ethyl group, 1- (2-bromophenyl) ethyl group, 1- (3-fluorophenyl) ethyl group, 1- (3-chlorophenyl) ethyl group, 1- (3-bromophenyl) ethyl group, 1- (4-fluorophenyl) ethyl group, 1- (4-chlorophenyl) ethyl group 1- (4-bromophenyl) ethyl group, 1- (2-trifluoromethylphenyl) ethyl group, 1- (3-trifluoromethylphenyl) ethyl group, 1- (4-trifluoromethylphenyl) ethyl group , Β-phenethyl group, 2- (3-bromophenyl) ethyl group, 2- (3-trifluoromethylphenyl) ethyl group, 3-phenylpropyl group, 4-phenyl group, An optionally substituted aralkyl group such as nylbutyl group; phenyl group, 2-fluorophenyl group, 2-chlorophenyl group, 2-bromophenyl group, 3-fluorophenyl group, 3-chlorophenyl group, 4-fluorophenyl group, 4-chlorophenyl group, 4-bromophenyl group, 2,4-difluorophenyl group, 2,4-dichlorophenyl group, 3,5-difluorophenyl group, 3,5-dichlorophenyl group, 3-chloro-2,4-difluoro Phenyl group, 2,4,5-trichlorophenyl group, 2,4-dichloro-3-methylphenyl group, 2,4-dichloro-5-methoxyphenyl group, 2,4-dichloro-5-isopropyloxyphenyl group, 2-fluoro-4-chloro-5-methoxyphenyl group, 2-fluoro-4-chloro-5-isopropyloxyphenyl group 2-fluoro-4-chloro-5-cyclopentyloxyphenyl group, 2-fluoro-4-chloro-5-propargyloxyphenyl group, 2-fluoro-4-chloro-5- (1-butyn-3-yloxy) phenyl Group, 2-fluoro-4-trifluoromethylphenyl group, 2-chloro-4-trifluoromethylphenyl group, 2-chloro-5-trifluoromethylphenyl group, 2-fluoro-5-nitrophenyl group, 2, 4-difluoro-5-nitrophenyl group, 2-methylphenyl group, 3-methylphenyl group, 4-methylphenyl group, 2,4-dimethylphenyl group, 4-ethylphenyl group, 4-isopropylphenyl group, 4- t-butylphenyl group, 2-trifluoromethylphenyl group, 3-trifluoromethylphenyl group, 4-trifluoromethyl Ruphenyl group, 2,4-bis (trifluoromethyl) phenyl group, 3,5-bis (trifluoromethyl) phenyl group, 2-acetylphenyl group, 4-acetylphenyl group, 4-isovalerylphenyl group, 2 -Methoxycarbonylphenyl group, 2-ethoxycarbonylphenyl group, 3-methoxycarbonylphenyl group, 4-methoxycarbonylphenyl group, 2-carboxyphenyl group, 4-carboxyphenyl group, 2-cyanophenyl group, 4-cyanophenyl group 2-methoxyphenyl group, 3-methoxyphenyl group, 4-methoxyphenyl group, 3,4-dimethoxyphenyl group, 4-isopropyloxyphenyl group, 4-t-butyloxyphenyl group, 3-trifluoromethyloxyphenyl Group, 4-trifluoromethyloxyphenyl group, 2-methyl Ruthiophenyl group, 4-methylthiophenyl group, 2-methylsulfinylphenyl group, 4-methylsulfinylphenyl group, 2-methylsulfonylphenyl group, 4-methylsulfonylphenyl group, 4-trifluoromethylthiophenyl group, 4-trifluoro Examples of the optionally substituted phenyl group include a methylsulfinylphenyl group, a 4-trifluoromethylsulfonylphenyl group, a 2-nitrophenyl group, and a 4-nitrophenyl group.
[0042]
R Four As hydrogen atom; alkyl group such as methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group; haloalkyl such as chloromethyl group, trifluoromethyl group, 2-chloroethyl group, 3-fluoropropyl group, etc. Group: alkoxyalkyl group such as methoxymethyl group, ethoxymethyl group, propyloxymethyl group, butyloxymethyl group, 1-methoxyethyl group, 2-methoxyethyl group; halo such as trichloromethoxymethyl group, trifluoromethoxymethyl group, etc. Alkoxyalkyl groups; alkoxyalkoxyalkyl groups such as 2-methoxyethoxymethyl group and 2-ethoxyethoxymethyl group; methylthiomethyl group, ethylthiomethyl group, 1- (methylthio) ethyl group, 2- (methylthio) ethyl group, etc. Alkylthioalkyl group; formyl Acyloxyalkyl groups such as a xymethyl group, acetyloxymethyl group, propionyloxymethyl group, butyryloxymethyl group, pivaloyloxymethyl group; thiocyanatoalkyl groups such as thiocyanatomethyl group; 2-propenyl group, 2 -Alkenyl groups such as butenyl group; acyl groups such as formyl group, acetyl group, propionyl group, butyryl group, valeryl group, pivaloyl group; methoxycarbonyl group, ethoxycarbonyl group, propyloxycarbonyl group, isopropoxycarbonyl group, butoxycarbonyl Group, an alkoxycarbonyl group such as isobutoxycarbonyl group and t-butoxycarbonyl group; a carbamoyl group; an alkylaminocarbonyl group such as methylcarbamoyl group, ethylcarbamoyl group and cyclohexylcarbamoyl group; Dialkylaminocarbonyl groups such as yl group, diethylcarbamoyl group, ethylpropylcarbamoyl group, 1-pyrrolidinylcarbonyl group, morpholinocarbonyl group; methylsulfonyl group, ethylsulfonyl group, isopropylsulfonyl group, butylsulfonyl group, isobutylsulfonyl group, etc. The alkylsulfonyl group of can be illustrated.
[0043]
R Five Examples of the alkyl group represented by the formula include methyl group, ethyl group, propyl group, isopropyl group, butyl group, isobutyl group and the like.
[0044]
The 2-substituted aminopyrimidinone derivatives and their production intermediates of the present invention can be produced by the methods exemplified in the production methods below.
[0045]
Embedded image
Figure 0004674676
[0046]
(Where R, R 1 , R 2 , R 2a , R Three , R 4a , R Five , X and Y have the same meaning as described above. )
[0047]
In Step-1, the 2-alkylthiopyrimidinone derivative (1a) of the present invention is converted by reacting the 2-alkylthiopyrimidinone derivative (2) with the aromatic amine represented by the general formula (3). It is a manufacturing process. In Step-2, the 2-aminopyrimidinone derivative (1a) of the present invention is reacted with a 2-aminopyrimidinone derivative (4) and an aromatic halogen compound represented by the general formula (5). ).
[0048]
The reaction in Step-1 and Step-2 is preferably performed in the presence of a base from the viewpoint of good yield. Bases include sodium hydride, potassium hydride, lithium amide, sodium amide, lithium diisopropylamide, butyl lithium, t-butyl lithium, trimethylsilyl lithium, lithium hexamethyldisilazide, sodium carbonate, potassium carbonate, sodium acetate, acetic acid Alkali metal bases such as potassium, sodium methoxide, sodium ethoxide, potassium tert-butoxide, triethylamine, diisopropylethylamine, tributylamine, N-methylmorpholine, N, N-dimethylaniline, N, N-diethylaniline, 4- An organic base such as t-butyl-N, N-dimethylaniline, pyridine, picoline, lutidine, diazabicycloundecene (DBU), diazabicyclooctane (DBO), imidazole, or the like is used. Door can be. By using 0.1 to 2.0 equivalents of the base in an amount equivalent to the substrate, the desired product can be obtained in good yield.
[0049]
This reaction can be carried out in a solvent, and any solvent that does not harm the reaction can be used. Examples of the solvent include amide solvents such as N, N-dimethylformamide (DMF), N, N-dimethylacetamide and N-methylpyrrolidone, nitrile solvents such as acetonitrile and propionitrile, benzene, toluene, xylene, chlorobenzene and the like. Aromatic hydrocarbon solvents, aliphatic hydrocarbon solvents such as pentane, hexane, and octane, ether solvents such as diethyl ether, diisopropyl ether, tetrahydrofuran (THF), dimethoxyethane (DME), and 1,4-dioxane, Any solvent that does not adversely affect the reaction, such as dimethyl sulfoxide (DMSO), or a mixed solvent thereof can be used.
[0050]
By performing the reaction at a temperature appropriately selected from the range of −78 ° C. to the solvent reflux temperature, the target product can be obtained in good yield. After completion of the reaction, the desired product can be obtained by a normal extraction operation, but can be purified by column chromatography or recrystallization if necessary.
[0051]
Step-3 is a step of producing the 2-substituted aminopyrimidinone derivative (1b) of the present invention by halogenating the 2-substituted aminopyrimidinone derivative (1a).
[0052]
Halogenation can be carried out by using a halogenating agent, and as the halogenating agent used, chlorine, bromine, iodine, potassium fluoride, sulfuryl chloride, N-chlorosuccinimide, N-bromosuccinimide, N-iodosuccinimide, Halogenation reagents such as t-butyl hypochlorite, diethylaminosulfur trifluoride, carbon tetrachloride / triphenylphosphine, carbon tetrabromide / triphenylphosphine, and the like can be used. When the halogenated reagent is used in an amount of 1 equivalent or more based on the substrate, the target product can be obtained in good yield.
[0053]
This reaction can also be carried out in a solvent, and any solvent that does not harm the reaction can be used. Solvents include aromatic hydrocarbon solvents such as chlorobenzene and dichlorobenzene, aliphatic hydrocarbon solvents such as pentane, hexane, and octane, and ethers such as diethyl ether, diisopropyl ether, THF, DME, and 1,4-dioxane. Solvents, halogen solvents such as chloroform, methylene chloride, and carbon tetrachloride, organic acid solvents such as acetic acid and propionic acid, or a mixed solvent thereof can be used.
[0054]
By carrying out the reaction at a temperature appropriately selected from the range of 0 ° C. to the solvent reflux temperature, the desired product can be obtained in good yield. After completion of the reaction, the desired product can be obtained by a normal extraction operation, but can be purified by column chromatography or recrystallization if necessary.
[0055]
In Step-4, 2-substituted aminopyrimidinone derivatives (1a) and (1b) are used as raw materials, reacted with a reagent (6) in the presence of a base, and the 2-substituted aminopyrimidinone derivatives ( 1d).
[0056]
This reaction is performed in the presence of a base. Bases include sodium hydride, potassium hydride, lithium amide, sodium amide, lithium diisopropylamide, butyl lithium, t-butyl lithium, trimethylsilyl lithium, lithium hexamethyldisilazide, sodium carbonate, potassium carbonate, sodium acetate, acetic acid Alkali metal bases such as potassium, sodium methoxide, sodium ethoxide, potassium tert-butoxide, triethylamine, diisopropylethylamine, tributylamine, N-methylmorpholine, N, N-dimethylaniline, N, N-diethylaniline, 4- Organic bases such as t-butyl-N, N-dimethylaniline, pyridine, picoline, lutidine, DBU, DBO, imidazole, and the like can be used. By using 1 to 2 equivalents of the base with respect to the substrate, the desired product can be obtained with good yield.
[0057]
This reaction can be carried out in a solvent, and any solvent that does not harm the reaction can be used. As the solvent, amide solvents such as DMF, N, N-dimethylacetamide and N-methylpyrrolidone, nitrile solvents such as acetonitrile and propionitrile, aromatic hydrocarbon solvents such as benzene, toluene, xylene and chlorobenzene, An aliphatic hydrocarbon solvent such as pentane, hexane, and octane, an ether solvent such as diethyl ether, diisopropyl ether, THF, DME, and 1,4-dioxane, DMSO, or a mixed solvent thereof can be used.
[0058]
By carrying out the reaction at a temperature appropriately selected from the range of 0 ° C. to the solvent reflux temperature, the desired product can be obtained in good yield. After completion of the reaction, the desired product can be obtained by a normal extraction operation, but can be purified by column chromatography or recrystallization if necessary.
[0059]
In this reaction, as a catalyst, quaternary compounds such as polyethers such as 18-crown-6, 15-crown-5, and 12-crown-4, tetrabutylammonium bromide, tetrabutylammonium sulfate, and tetraethylammonium iodide are used. By using an ammonium salt or the like, the target product can be obtained with higher yield.
[0060]
The 2-substituted amino-4 (3H) -pyrimidinone derivative (2) used as a raw material in the above production method is disclosed in JP-A-6-321913, JP-A-7-89941, WO98 / 51152, WO98 / 51675, Japanese Patent Application. It can be produced by the methods described in Japanese Patent Application Nos. 10-1119917, 10-321181, and 10-321181. Moreover, a part can be manufactured by the method described in the following reference example.
[0061]
The 2-substituted aminopyrimidinone derivative (1) of the present invention exhibits a high control effect at a low drug concentration against sanitary pests or pests harmful to agricultural and horticultural crops, particularly insects and mites.
[0062]
Pests to be controlled include lepidopterous species such as Lotus moth, Konaga, Chanocokakumon anemone, Kobonomeiga, Nikameichu, etc .; Hemiptera such as aphids, whitefly, etc., stink bugs, such as Chabanae stink bugs; Coleoptera, such as kissing flea beetles, potato beetles, azuki beetles; Insect larvae and adults, and eggs and larvae of ticks such as nymph mite, mandarin mite, citrus mite, chano mite, etc.
[0063]
Therefore, the 2-substituted aminopyrimidinone derivative (1) of the present invention is useful as an agricultural and horticultural insecticide and acaricide. However, the insects and ticks to be controlled by the compound of the present invention are not limited to those exemplified above.
[0064]
When the 2-substituted aminopyrimidinone derivative (1) of the present invention is used as an agricultural or horticultural insecticide or acaricide, it may be used alone, but is preferably produced using a general agricultural chemical auxiliary. Used in the form of a composition. The form of the insecticide and acaricide of the present invention is not particularly limited. For example, emulsion, wettable powder, powder, flowable, dry flowable, fine granule, granule, tablet, oil, spray, fumes, jumbo It is preferable to use a form such as an agent. Moreover, 1 type, or 2 or more types of the 2-substituted amino pyrimidinone derivative (1) of this invention can be mix | blended as an active ingredient.
[0065]
Agrochemical adjuvants used for producing insecticides and acaricides containing the 2-substituted aminopyrimidinone derivative (1) of the present invention as an active ingredient are, for example, improved and stable effects of insecticides and acaricides. It can be used for the purpose of improving the dispersion and dispersibility. As an agrochemical adjuvant, for example, a carrier (diluent), a spreading agent, an emulsifier, a wetting agent, a dispersing agent, a disintegrating agent, and the like can be used.
[0066]
Examples of liquid carriers include water, aromatic hydrocarbons such as toluene and xylene, alcohols such as methanol, butyl alcohol, and glycol, ketones such as acetone and cyclohexanone, amides such as dimethylformamide, sulfoxides such as dimethyl sulfoxide, Mention may be made of methylnaphthalene, cyclohexane, animal and vegetable oils, fatty acids and the like. As the solid carrier, clay, kaolin, talc, diatomaceous earth, silica, calcium carbonate, montmorillonite, bentonite, feldspar, quartz, alumina, sawdust, nitrocellulose, starch, gum arabic and the like can be used.
[0067]
Usable surfactants can be used as emulsifiers and dispersants, for example, higher alcohol sodium sulfate, stearyltrimethylammonium chloride, polyoxyethylene alkylphenyl ether, anionic surfactants such as lauryl betaine, cations Surfactants, nonionic surfactants, zwitterionic surfactants, and the like can be used. In addition, spreading agents such as polyoxyethylene nonylphenyl ether and polyoxyethylene lauryl phenyl ether; wetting agents such as dialkyl sulfosuccinate; fixing agents such as carboxymethyl cellulose and polyvinyl alcohol; sodium lignin sulfonate and sodium lauryl sulfate Disintegrants can be used.
[0068]
The content of the active ingredient in the agricultural and horticultural insecticidal and acaricidal agents of the present invention is selected from the range of 0.01 to 99.5%, and may be appropriately determined according to various conditions such as formulation form and application method. For example, about 0.5 to 20% by weight for powders, preferably about 1 to 10% by weight, about 1 to 90% by weight for wettable powders, preferably about 10 to 80% by weight, and about 1 to 90% for emulsions. It is preferable to produce the composition so as to contain about 10%, preferably 10 to 40% by weight of the active ingredient.
[0069]
For example, in the case of an emulsion, a stock emulsion can be prepared by mixing a solvent, a surfactant and the like with the 2-substituted aminopyrimidinone derivative (1) of the present invention which is an active ingredient. Can be used after diluting with water to a predetermined concentration. In the case of a wettable powder, an active ingredient 2-substituted aminopyrimidinone derivative (1), a solid carrier, a surfactant and the like are mixed to produce a stock solution, and this stock solution is diluted with water to a predetermined concentration when used. Can be applied. In the case of powders, the active ingredient 2-substituted aminopyrimidinone derivative (1), solid carrier and the like can be mixed and applied as it is, and in the case of granules, the active ingredient 2-substituted aminopyrimidinone. The derivative (1), a solid carrier, a surfactant and the like are mixed and granulated, and can be applied as it is. However, the manufacturing method of each of the above-mentioned preparation forms is not limited to the above-mentioned ones, and can be appropriately selected by those skilled in the art according to the type of active ingredient, application purpose, and the like.
[0070]
In addition to the 2-substituted aminopyrimidinone derivative (1) of the present invention which is an active ingredient, the agricultural and horticultural insecticide and acaricide of the present invention include other fungicides, insecticides, acaricides, herbicides, You may mix | blend arbitrary active ingredients, such as an insect growth regulator, a fertilizer, and a soil improvement agent.
[0071]
The application method of the agricultural and horticultural insecticidal and acaricidal agents of the present invention is not particularly limited, and can be applied by any method such as foliage spraying, water surface application, soil treatment, and seed treatment. For example, in the case of foliage spraying or soil treatment, a solution having a concentration range of 0.001 to 1000 ppm, preferably 0.01 to 500 ppm, is used at an application rate of about 0.1 to 5000 L, preferably about 10 to 2000 L per 10 ares. it can. The application amount in the case of water surface application is usually 0.1 to 10 Kg per 10 ares for granules containing 0.01 to 15% of the active ingredient. In the case of soil treatment, a solution with a concentration range of 5 to 1000 ppm is 1 m. 2 It can be used at an application rate of about 1 to 10 L per unit. In the case of seed treatment, about 10 to 100 mL of a solution having a concentration range of 10 to 1000 ppm per 1 kg seed weight can be applied.
[0072]
【Example】
[0073]
EXAMPLES Hereinafter, although an Example and a reference example demonstrate this invention further more concretely, this invention is not limited to a following example and reference example.
Example-1
[0074]
Embedded image
Figure 0004674676
[0075]
To a solution of 2-amino-3,5-dichloropyridine (3.00 g, 18.4 mmol) in DMF (10 mL) was added sodium hydride (60% oily, 0.96 g, 23.9 mmol) with stirring at room temperature, and the mixture was stirred for 30 minutes. Thereafter, 3-methyl-2-methylthio-6-trifluoromethyl-4 (3H) -pyrimidinone (4.12 g, 18.4 mmol) was added, and the mixture was heated and stirred at 60 ° C. for 3 hours. After completion of the reaction, the reaction solution was poured into a 1N aqueous hydrochloric acid solution (100 mL), and the precipitated crystals were filtered and recrystallized using ethanol to give 2- (3,5-dichloropyridin-2-yl) amino-3-methyl- A pale yellow solid (3.36 g) of 6-trifluoromethyl-4 (3H) -pyrimidinone [Compound No. 1] was obtained. Yield: 54%; mp: 188-189 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ3.60 (s, 3H), 6.21 (s, 1H), 7.80 (d, J = 2.4Hz, 1H), 8.05 (d, J = 2.4Hz, 1H). Could not be attributed.)
Example-2
[0076]
Embedded image
Figure 0004674676
[0077]
To a solution of 2- (3,5-dichloropyridin-2-yl) amino-3-methyl-6-trifluoromethyl-4 (3H) -pyrimidinone (1.86 g, 5.49 mmol) in dichloromethane (50 mL) at room temperature with stirring. Added sulfuryl chloride (1.11 g, 8.23 mmol) and stirred for 10 hours. After completion of the reaction, the precipitated crystals were filtered, and 5-chloro-2- (3,5-dichloropyridin-2-yl) amino-3-methyl-6-trifluoromethyl-4 (3H) -pyrimidinone [Compound No. 2 A pale yellow solid (0.70 g) was obtained. Yield: 34%; mp: 231-232 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ 3.68 (s, 3H), 7.82 (d, J = 2.4Hz, 1H), 7.9 (m, 1H). (Amino proton could not be assigned.)
Example-3
[0078]
Embedded image
Figure 0004674676
[0079]
Sodium hydride (60% oily, 0.32 g, 7.98 mmol) was added to a DMF (5 mL) solution of 2-amino-3,5-dichloropyridine (1.00 g, 6.13 mmol) at room temperature, and the mixture was stirred for 30 minutes. Thereafter, 3-benzyl-2-methylthio-6-trifluoromethyl-4 (3H) -pyrimidinone (1.84 g, 6.13 mmol) was added, and the mixture was heated and stirred at 60 ° C. for 2 hours. After completion of the reaction, the reaction solution was poured into 1N aqueous hydrochloric acid solution (100 mL) and extracted with ethyl acetate (100 mL). The organic layer was washed with water (100 mL) and saturated brine (50 mL × 2) and dried over anhydrous magnesium sulfate, and then the solvent was distilled off under reduced pressure. The obtained crude product precipitated crystals were recrystallized from ethanol to give 3-benzyl-2- (3,5-dichloropyridin-2-yl) amino-6-trifluoromethyl-4 (3H) -pyrimidinone [ A pale yellow solid (1.58 g) of Compound No. 3] was obtained. Yield: 62%; mp: 182-183 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ5.48 (s, 2H), 6.22 (s, 1H), 7.3 (m, 3H), 7.5 (m, 2H), 7.80 (d, J = 2.4Hz, 1H), 8.02 ( d, J = 2.4Hz, 1H). (Amino proton could not be assigned.)
Example-4
[0080]
Embedded image
Figure 0004674676
[0081]
A solution of 3-benzyl-2- (3,5-dichloropyridin-2-yl) amino-6-trifluoromethyl-4 (3H) -pyrimidinone (1.00 g, 2.41 mmol) in dichloromethane (50 mL) was stirred at room temperature. Added sulfuryl chloride (0.49 g, 3.61 mmol) and stirred for 10 hours. After completion of the reaction, the reaction solution was distilled off under reduced pressure, and the precipitated crystals were washed with ethanol to give 3-benzyl-5-chloro-2- (3,5-dichloropyridin-2-yl) amino-6-trifluoro. A pale yellow solid (0.30 g) of methyl-4 (3H) -pyrimidinone [Compound No. 4] was obtained. Yield: 28%; mp: 241-242 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ5.55 (s, 2H), 7.3 (m, 3H), 7.7 (m, 2H), 7.8 (m, 2H). (Amino proton could not be assigned.)
Example-5
[0082]
Embedded image
Figure 0004674676
[0083]
To a solution of 2-amino-3-chloro-5- (trifluoromethyl) pyridine (3.00 g, 15.3 mmol) in DMF (10 mL) was added sodium hydride (60% oily, 0.79 g, 19.8 mmol) with stirring at room temperature. After stirring for 30 minutes, 3-methyl-2-methylthio-6-trifluoromethyl-4 (3H) -pyrimidinone (3.42 g, 15.3 mmol) was added, and the mixture was heated and stirred at 60 ° C. for 2 hours. After completion of the reaction, the reaction solution was poured into a 1N aqueous hydrochloric acid solution (100 mL), the precipitated crystals were filtered, washed with ethanol, dried, and 2- {3-chloro-5- (trifluoromethyl) pyridin-2-yl. } A pale yellow solid (4.12 g) of amino-3-methyl-6-trifluoromethyl-4 (3H) -pyrimidinone [Compound No. 5] was obtained. Yield: 72%; mp: 169-170 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ3.67 (s, 3H), 6.35 (s, 1H), 7.96 (d, J = 2.1Hz, 1H), 8.21 (br s, 1H). (Amino proton could not be assigned) .)
Example-6
[0084]
Embedded image
Figure 0004674676
[0085]
2- {3-Chloro-5- (trifluoromethyl) pyridin-2-yl} amino-3-methyl-6-trifluoromethyl-4 (3H) -pyrimidinone (2.00 g, 5.37 mmol) in dichloromethane (100 mL) To the solution was added sulfuryl chloride (1.09 g, 8.05 mmol) with stirring at room temperature and stirred for 12 hours. After completion of the reaction, the reaction solution was concentrated under reduced pressure, and the resulting crystal was washed with ethanol to give 5-chloro-2- {3-chloro-5- (trifluoromethyl) pyridin-2-yl} amino-3-methyl- A pale yellow solid (0.80 g) of 6-trifluoromethyl-4 (3H) -pyrimidinone [Compound No. 6] was obtained. Yield: 37%; mp: 232-233 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ 3.75 (s, 3H), 7.96 (d, J = 2.1Hz, 1H), 8.0 (br s, 1H). (Amino proton could not be assigned.)
Example-7
[0086]
Embedded image
Figure 0004674676
[0087]
To a solution of 2-amino-3-chloro-5- (trifluoromethyl) pyridine (1.28 g, 6.54 mmol) in DMF (10 mL) was added sodium hydride (60% oily, 0.34 g, 8.50 mmol) with stirring at room temperature. After stirring for 30 minutes, 3-cyclohexylmethyl-2-methylthio-6-trifluoromethyl-4 (3H) -pyrimidinone (2.00 g, 6.54 mmol) was added, and the mixture was stirred with heating at 60 ° C. for 2 hours. After completion of the reaction, the reaction solution was poured into a 1N aqueous hydrochloric acid solution (100 mL), and the precipitated crystals were filtered and recrystallized using ethanol to give 2- {3-chloro-5- (trifluoromethyl) pyridin-2-yl} A pale yellow solid (2.07 g) of amino-3-cyclohexylmethyl-6-trifluoromethyl-4 (3H) -pyrimidinone [Compound No. 7] was obtained. Yield: 69%; mp: 173-174 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ1.2 (m, 5H), 1.7 (m, 5H), 2.0 (m, 1H), 4.18 (d, J = 7.2Hz, 2H), 6.32 (s, 1H), 7.94 ( s, 1H), 8.19 (s, 1H). (Amino proton could not be assigned.)
Example-8
[0088]
Embedded image
Figure 0004674676
[0089]
2- {3-Chloro-5- (trifluoromethyl) pyridin-2-yl} amino-3-cyclohexylmethyl-6-trifluoromethyl-4 (3H) -pyrimidinone (1.07 g, 2.35 mmol) in dichloromethane (50 mL ) Sulfuryl chloride (0.48 g, 3.53 mmol) was added to the solution with stirring at room temperature and stirred for 12 hours. After completion of the reaction, the reaction solution was concentrated under reduced pressure, and the resulting crude product was purified by silica gel column chromatography (ethyl acetate: hexane = 1: 19) to give 5-chloro-2- {3-chloro-5- (tri A pale yellow solid (0.30 g) of (fluoromethyl) pyridin-2-yl} amino-3-cyclohexylmethyl-6-trifluoromethyl-4 (3H) -pyrimidinone [Compound No. 8] was obtained. Yield: 26%; mp: 141-142 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ1.2 (m, 5H), 1.7 (m, 5H), 2.0 (m, 1H), 4.26 (d, J = 7.2Hz, 2H), 7.94 (d, J = 1.8Hz, 1H), 8.0 (m, 1H). (Amino proton could not be assigned.)
Example-9
[0090]
Embedded image
Figure 0004674676
[0091]
To a solution of 2-amino-3-chloro-5- (trifluoromethyl) pyridine (1.00 g, 5.09 mmol) in DMF (10 mL) was added sodium hydride (60% oily, 0.26 g, 6.62 mmol) with stirring at room temperature. After addition and stirring for 30 minutes, 3-benzyl-2-methylthio-6-trifluoromethyl-4 (3H) -pyrimidinone (1.53 g, 5.09 mmol) was added, and the mixture was heated and stirred at 60 ° C. for 2 hours. After completion of the reaction, the reaction solution was poured into 1N aqueous hydrochloric acid solution (100 mL) and extracted with ethyl acetate (100 mL). The organic layer was washed with water (100 mL) and saturated brine (50 mL × 2) and dried over anhydrous magnesium sulfate, and then the solvent was distilled off under reduced pressure. The obtained crude product was recrystallized from ethanol to give 3-benzyl-2- {3-chloro-5- (trifluoromethyl) pyridin-2-yl} amino-6-trifluoromethyl-4 (3H ) -Pyrimidinone [Compound No. 9] was obtained as a pale yellow solid (1.56 g). Yield: 68%; mp: 129-130 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ5.54 (s, 2H), 6.36 (s, 1H), 7.3 (m, 3H), 7.7 (m, 2H), 7.96 (d, J = 1.8Hz, 1H), 8.19 ( br s, 1H). (Amino proton could not be assigned.)
Example-10
[0092]
Embedded image
Figure 0004674676
[0093]
3-Benzyl-2- {3-chloro-5- (trifluoromethyl) pyridin-2-yl} amino-6-trifluoromethyl-4 (3H) -pyrimidinone (0.90 g, 2.01 mmol) in dichloromethane (30 mL) To the solution was added sulfuryl chloride (0.41 g, 3.01 mmol) with stirring at room temperature, and the mixture was stirred for 12 hours. After completion of the reaction, the reaction solution was concentrated under reduced pressure, and the resulting crystal was washed with hexane to give 3-benzyl-5-chloro-2- {3-chloro-5- (trifluoromethyl) pyridin-2-yl} amino- A pale yellow solid (0.48 g) of 6-trifluoromethyl-4 (3H) -pyrimidinone [Compound No. 9] was obtained. Yield: 49%; mp: 142-143 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ5.61 (s, 2H), 7.3 (m, 3H), 7.7 (m, 2H), 7.97 (d, J = 2.4Hz, 1H), 8.00 (br s, 1H). Amino proton could not be assigned.)
Reference Example-1
[0094]
Embedded image
Figure 0004674676
[0095]
While stirring a suspension of sodium hydride (60% oily, 10.9 g, 273 mmol) in DMF (180 mL) at 0 ° C., ethyl 3-amino-4,4,4-trifluorocrotonate (46.2 g, 252 mmol) Was added slowly. The reaction solution was kept at 0 ° C. and stirred for 10 minutes, and then allyl isothiocyanate (25.0 g, 252 mmol) was slowly added, and the mixture was stirred overnight while gradually returning the reaction temperature to room temperature. After completion of the reaction, DMF was distilled off under reduced pressure, and 6N hydrochloric acid (200 mL) was added to the residue to precipitate a solid. The obtained solid was sufficiently washed with water and hexane and dried to obtain 3-allyl-2-mercapto-6-trifluoromethyl-4 (3H) -pyrimidinone brown solid. Yield: 86%; mp: 146-149 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ5.00 (2H, d, J = 5.8Hz), 5.29 (1H, dd, J = 1.0 and 10.3Hz), 5.37 (1H, dd, J = 1.0 and 17.3Hz), 5.84〜 5.98 (1H, m), 6.32 (1H, s). (No SH proton was observed.)
Reference example-2
[0096]
Embedded image
Figure 0004674676
[0097]
To a solution of 3-allyl-2-mercapto-6-trifluoromethyl-4 (3H) -pyrimidinone (51.0 g, 216 mmol) in acetonitrile (500 mL), potassium carbonate (35.8 g, 259 mmol) and methyl iodide (36.8 g, 259 mmol) was added and stirred at room temperature overnight. After completion of the reaction, potassium carbonate was filtered off, the solvent was distilled off under reduced pressure, 1N hydrochloric acid (200 mL) was added, and the mixture was extracted with ethyl acetate (150 mL × 2). The organic layer was washed with saturated brine (200 mL), dried over anhydrous sodium sulfate, the desiccant was filtered off, and the filtrate was concentrated under reduced pressure to give 3-allyl-2-methylthio-6-trifluoromethyl-4. A black liquid of (3H) -pyrimidinone was obtained. Yield: 87%; 1 H-NMR (CDCl Three , TMS, ppm): δ2.61 (3H, s), 4.68 to 4.72 (2H, m), 5.27 to 5.34 (2H, m), 5.79 to 5.92 (1H, m), 6.56 (1H, s).
Reference example-3
[0098]
Embedded image
Figure 0004674676
[0099]
3-Allyl-2-methylthio-6-trifluoromethyl-4 (3H) -pyrimidinone (5.00 g, 20.0 mmol) was dissolved in a mixed solution of ether (50 mL) and water (50 mL), and osmium tetroxide (254 mg, 1.00 mmol) aqueous solution (13 mL) and sodium periodate (8.60 g, 40.2 mmol) were sequentially added, and the mixture was stirred overnight at room temperature. After completion of the reaction, 10% aqueous sodium thiosulfate solution (100 mL) and ethyl acetate (100 mL) were added to the reaction solution, the organic layer was separated, and the aqueous layer was extracted with ethyl acetate (50 mL). The organic layers were combined, washed with saturated aqueous sodium hydrogen carbonate (100 mL) and saturated brine (100 mL), and dried over anhydrous magnesium sulfate. After the desiccant was filtered off, the filtrate was concentrated under reduced pressure. The obtained crude product was purified by a silica gel column (Wakogel C-200, hexane: ethyl acetate = 4: 1 to 2: 1), and {2-methylthio-6-trifluoromethyl-4 (3H) -pyrimidinone- A white solid of 3-yl} acetaldehyde was obtained. Yield: 57%; mp: 86-88 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ2.64 (3H, s), 4.95 (2H, s), 6.61 (1H, s), 9.62 (1H, s).
Reference example-4
[0100]
Embedded image
Figure 0004674676
[0101]
An ethanol solution (150 mL) of {2-methylthio-6-trifluoromethyl-4 (3H) -pyrimidinone-3-yl} acetaldehyde (5.50 g, 21.8 mmol) was cooled to 0 ° C., and sodium borohydride (1.08 g , 28.3 mmol), and stirred at 0 ° C. for 1 hour. After completion of the reaction, 1N hydrochloric acid (300 mL) was added to the reaction solution, and the mixture was extracted with ethyl acetate (150 mL × 2). The organic layer was washed with saturated brine (300 mL) and then dried over anhydrous sodium sulfate. After the desiccant was filtered off, the filtrate was concentrated under reduced pressure. The obtained crude product was purified by silica gel column (Wakogel C-200, hexane: ethyl acetate = 7: 3), and 3- (2-hydroxyethyl) -2-methylthio-6-trifluoromethyl-4 (3H ) -Pyrimidinone white solid was obtained. Yield: 94%; mp: 71-73 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ2.22 (1H, s), 2.63 (3H, s), 3.05 to 4.03 (2H, m), 4.32 (2H, t, J = 5.5Hz), 6.58 (1H, s).
Reference Example-5
[0102]
Embedded image
Figure 0004674676
[0103]
A solution of 3- (2-hydroxyethyl) -2-methylthio-6-trifluoromethyl-4 (3H) -pyrimidinone (5.20 g, 20.5 mmol) in methylene chloride (100 mL) was cooled to 0 ° C. and triphenylphosphine ( 8.77 g, 33.4 mmol) and carbon tetrabromide (13.4 g, 40.4 mmol) were added, and the mixture was stirred overnight while gradually returning to room temperature. After completion of the reaction, the precipitate was filtered and the solvent was concentrated under reduced pressure. The obtained crude product was purified with a silica gel column (Wakogel C-200, hexane: ethyl acetate = 8: 1) to give 3- (2-bromoethyl) -2-methylthio-6-trifluoromethyl-4 (3H). -A white solid of pyrimidinone was obtained. Yield: 37%; mp: 57-58 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ2.64 (3H, s), 3.56 to 3.61 (2H, m), 4.40 to 4.46 (2H, m), 6.55 (1H, s).
Reference Example-6
[0104]
Embedded image
Figure 0004674676
[0105]
To a solution of 3- (2-bromoethyl) -2-methylthio-6-trifluoromethyl-4 (3H) -pyrimidinone (2.37 g, 7.47 mmol) in THF (30 mL) was added DBU (3.4 mL), and the mixture was stirred at room temperature. Stir overnight. After completion of the reaction, water (80 mL) was added to the reaction solution, and extracted with ethyl acetate (50 mL × 2). The organic layer was washed with saturated brine (100 mL) and dried over anhydrous sodium sulfate. After the desiccant was filtered off, the filtrate was concentrated under reduced pressure. The obtained crude product was purified by silica gel column (Wakogel C-200, hexane: ethyl acetate = 9: 1), and white of 2-methylthio-6-trifluoromethyl-3-vinyl-4 (3H) -pyrimidinone. A solid was obtained. Yield: 62%; mp: 91-93 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ2.56 (3H, s), 5.71 to 5.81 (2H, m), 6.47 (1H, dd, J = 8.3 and 15.7Hz), 6.57 (1H, s).
Example-11
[0106]
Embedded image
Figure 0004674676
[0107]
To a suspension of sodium hydride (60% oily, 373 mg, 9.33 mmol) in DMF (20 mL) was added 2-amino-3-chloro-5- (trifluoromethyl) pyridine (1.66 g, 8.47 mmol) and 2-methylthio. -6-Trifluoromethyl-3-vinyl-4 (3H) -pyrimidinone (2.0 g, 8.47 mmol) was added at 0 ° C., the temperature was gradually raised to room temperature, and the mixture was stirred at that temperature for 24 hours. After completion of the reaction, the reaction solution was poured into 1N aqueous hydrochloric acid (100 mL), ethyl acetate (100 mL) was added, and the organic layer was separated. The aqueous layer was extracted with ethyl acetate (100 mL), and the organic layers were combined and washed with saturated brine (100 mL). The organic layer was dried over anhydrous magnesium sulfate, the desiccant was filtered off, and the solvent was removed from the filtrate under reduced pressure. The obtained solid was washed with a mixed solvent of hexane / ether (4/1) and then sufficiently dried to give 2- {3-chloro-5- (trifluoromethyl) pyridin-2-yl} amino-6-tri A white solid of fluoromethyl-3-vinyl-4 (3H) -pyrimidinone [Compound No. 11] was obtained. Yield: 57%; mp: 143-146 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ5.55 (d, J = 9.4Hz, 1H), 6.15 (d, J = 16.1Hz, 1H), 6.36 (s, 1H), 7.14 (dd, J = 9.4 and 16.1Hz, 1H), 7.98 (d, J = 2.1Hz, 1H), 8.22 (d, J = 2.1Hz, 1H), 15.6 (br s, 1H).
Example-12
[0108]
Embedded image
Figure 0004674676
[0109]
To a solution of 2-amino-4,6-dimethylpyrimidine (0.25 g, 2.00 mmol) in DMF (10 mL) was added sodium hydride (60% oily, 0.12 g, 3.00 mmol) at 0 ° C. and stirred for 30 minutes. 3-Ethyl-2-methylthio-6-trifluoromethyl-4 (3H) -pyrimidinone (0.48 g, 2.00 mmol) was added, and the mixture was stirred at room temperature for 4 hours and at 60 ° C. for 4 hours. After completion of the reaction, water (10 mL) and ethyl acetate (10 mL) were added to the reaction solution to separate the organic layer, and the aqueous layer was extracted with ethyl acetate (5 mL). The organic layers were combined, washed with water (20 mL × 2), and dried over anhydrous magnesium sulfate. After the desiccant was filtered off, the filtrate was concentrated under reduced pressure, and the resulting crude product was purified with a silica gel column (Wakogel C-200, ethyl acetate: hexane = 1: 4 to 1: 2) to give 2- (4 , 6-Dimethylpyrimidin-2-yl) amino-3-ethyl-6-trifluoromethyl-4 (3H) -pyrimidinone [Compound No. 12] was obtained as a white solid (0.23 g). Yield: 37%; mp: 200-201 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ1.32 (t, J = 7.0Hz, 3H), 2.50 (s, 6H), 4.42 (q, J = 7.0Hz, 2H), 6.33 (s, 1H), 6.53 (s, 1H). (Amino proton could not be assigned.)
Example-13
[0110]
Embedded image
Figure 0004674676
[0111]
To a solution of 2-amino-5-trifluoromethyl-1,3,4-thiadiazole (1.00 g, 5.92 mmol) in DMF (10 mL) was stirred at room temperature with sodium hydride (60% oily, 0.31 g, 7.69 mmol). After stirring for 30 minutes, 3-methyl-2-methylthio-6-trifluoromethyl-4 (3H) -pyrimidinone (1.33 g, 5.92 mmol) was added, and the mixture was stirred with heating at 60 ° C. for 2 hr. After completion of the reaction, the reaction solution was poured into a 1N aqueous hydrochloric acid solution (100 mL), and the precipitated crystals were filtered and recrystallized with toluene to give 2- (5-trifluoromethyl-1,3,4-thiadiazol-2-yl. ) A pale yellow solid (1.55 g) of amino-3-methyl-6-trifluoromethyl-4 (3H) -pyrimidinone [Compound No. 13] was obtained. Yield: 76%; mp: 232-233 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ 3.62 (s, 3H), 6.45 (s, 1H). (Amino proton could not be assigned.)
Example-14
[0112]
Embedded image
Figure 0004674676
[0113]
3-methyl-6-trifluoromethyl-2- (5-trifluoromethyl-1,3,4-thiadiazol-2-yl) amino-4 (3H) -pyrimidinone (0.90 g, 2.61 mmol) in dichloromethane (30 mL ) Sulfuryl chloride (0.53 g, 3.91 mmol) was added to the solution with stirring at room temperature and stirred for 10 hours. After completion of the reaction, the precipitated crystals were filtered, and 5-chloro-3-methyl-6-trifluoromethyl-2- (5-trifluoromethyl-1,3,4-thiadiazol-2-yl) amino-4 (3H ) -Pyrimidinone [Compound No. 14] was obtained as a pale yellow solid (0.36 g). Yield: 36%; mp: 255-256 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ 3.68 (s, 3H). (Amino proton could not be assigned.)
Example-15
[0114]
Embedded image
Figure 0004674676
[0115]
To a solution of 2-amino-5-trifluoromethyl-1,3,4-thiadiazole (1.00 g, 5.92 mmol) in DMF (10 mL) was stirred at room temperature with sodium hydride (60% oily, 0.31 g, 7.69 mmol). After stirring for 30 minutes, 3-benzyl-2-methylthio-6-trifluoromethyl-4 (3H) -pyrimidinone (1.78 g, 5.92 mmol) was added, and the mixture was stirred with heating at 60 ° C. for 2 hr. After completion of the reaction, the reaction solution was poured into a 1N aqueous hydrochloric acid solution (100 mL), and the precipitated crystals were filtered and recrystallized using toluene to give 3-benzyl-6-trifluoromethyl-2- (5-trifluoromethyl-1 , 3,4-thiadiazol-2-yl) amino-4 (3H) -pyrimidinone [Compound No. 15] was obtained as a pale yellow solid (1.67 g). Yield: 67%; mp: 244-245 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ 5.45 (s, 2H), 6.47 (s, 1H), 7.3 (m, 3H), 7.5 (m, 2H). (Amino proton could not be assigned.)
Example-16
[0116]
Embedded image
Figure 0004674676
[0117]
3-Benzyl-6-trifluoromethyl-2- (5-trifluoromethyl-1,3,4-thiadiazol-2-yl) amino-4 (3H) -pyrimidinone (1.00 g, 2.37 mmol) in dichloromethane (30 mL ) Sulfuryl chloride (0.48 g, 3.56 mmol) was added to the solution with stirring at room temperature and stirred for 10 hours. After completion of the reaction, the precipitated crystals were filtered, and 3-benzyl-5-chloro-6-trifluoromethyl-2- (5-trifluoromethyl-1,3,4-thiadiazol-2-yl) amino-4 (3H ) -Pyrimidinone [Compound No. 16] was obtained as a pale yellow solid (0.80 g). Yield: 74%; mp: 245-246 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ 5.48 (s, 2H), 7.3 (m, 3H), 7.5 (m, 2H). (Amino proton could not be assigned.)
Example-17
[0118]
Embedded image
Figure 0004674676
[0119]
To a solution of 2-aminobenzothiazole (0.45 g, 3.00 mmol) in DMF (8 mL) was added sodium hydride (60% oily, 0.14 g, 3.50 mmol) at 0 ° C., and the mixture was stirred for 30 minutes, and then 3-methyl-2 -Methylsulfonyl-6-trifluoromethyl-4 (3H) -pyrimidinone (0.74 g, 3.00 mmol) was added and stirred at 60 ° C. for 4 hours. After completion of the reaction, water (10 mL) and ethyl acetate (10 mL) were added to the reaction solution to separate the organic layer, and the aqueous layer was extracted with ethyl acetate (10 mL). The organic layers were combined, washed with water (20 mL) and saturated brine (20 mL), and dried over anhydrous sodium sulfate. After the desiccant was filtered off, the filtrate was concentrated under reduced pressure, and the resulting crude product was purified with a silica gel column (Wakogel C-200, ethyl acetate: hexane = 1: 1) to give 2- (benzothiazole- A white solid (0.10 g) of 2-yl) amino-3-methyl-6-trifluoromethyl-4 (3H) -pyrimidinone [Compound No. 17] was obtained. Yield: 10%; mp: 173-174 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ3.58 (s, 3H), 6.78 (d, J = 6.2Hz, 1H), 6.92 (s, 1H), 7.08 ~ 7.48 (m, 3H), 7.52 (br s, 1H) .
Reference Example-7
[0120]
Embedded image
Figure 0004674676
[0121]
While stirring a suspension of sodium hydride (60% oily, 1.32 g, 33 mmol) in DMF (70 mL) at 0 ° C., ethyl 3-amino-4,4,5,5,5-pentafluoropropionate (6.99 g, 30.0 mmol) was added slowly. The reaction solution was kept at 0 ° C. and stirred for 10 minutes, and then a solution of ethyl isothiocyanate (2.35 mL, 27.0 mmol) in DMF (20 mL) was slowly added, and the reaction temperature was gradually returned to room temperature and stirred for 12 hours. After completion of the reaction, DMF was distilled off under reduced pressure, 2N hydrochloric acid (200 mL) was added to the residue, the precipitated solid was collected, washed with water and hexane, and then thoroughly dried to give 3-ethyl-2-mercapto. A white solid (6.53 g) of -6-pentafluoroethyl-4 (3H) -pyrimidinone was obtained. Yield: 88%; mp: 143-145 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ1.32 (t, J = 7.1Hz, 3H), 4.44 (q, J = 7.1Hz, 2H), 6.28 (s, 1H), 9.45 (br s, 1H).
After adding potassium carbonate (3.81 g, 27.6 mmol) to a DMF (70 mL) solution of the obtained 3-ethyl-2-mercapto-6-pentafluoroethyl-4 (3H) -pyrimidinone (6.31 g, 23.0 mmol). Then, methyl iodide (1.43 ml, 23.0 mmol) was added with stirring under ice cooling, and the mixture was stirred under ice cooling for 30 minutes and at room temperature for 12 hours. After completion of the reaction, DMF was distilled off under reduced pressure, water (70 ml) and ether (100 ml) were added to the residue, the organic layer was separated, and the aqueous layer was extracted with ether (50 mL × 3). The organic layers were combined, washed with saturated brine (100 mL), and dried over anhydrous sodium sulfate. After the desiccant was filtered off, the filtrate was concentrated under reduced pressure. The obtained crude product was purified with a silica gel column (Wakogel C-200, ethyl acetate: hexane = 1: 5) to give a viscous solution of 3-ethyl-2-methylthio-6-pentafluoroethyl-4 (3H) -pyrimidinone. A viscous material (5.92 g) was obtained. Yield: 89%; 1 H-NMR (CDCl Three , TMS, ppm): δ1.36 (t, J = 7.1Hz, 3H), 2.58 (s, 3H), 4.13 (q, J = 7.1Hz, 2H), 6.59 (s, 1H).
Example-18
[0122]
Embedded image
Figure 0004674676
[0123]
To a suspension of sodium hydride (60% oily, 0.32 g, 8.0 mmol) in DMF (30 mL) was added 2-amino-3-chloro-5- (trifluoromethyl) pyridine (0.79 g, 4.0 mmol), and 0 Stir at 30 ° C. for 30 minutes. Next, a solution of 3-ethyl-2-methylthio-6-pentafluoroethyl-4 (3H) -pyrimidinone (1.15 g, 4.0 mmol) obtained above in DMF (10 mL) was slowly added. The mixture was stirred for 1 hour while gradually returning the reaction temperature to room temperature, and further stirred at 70 ° C. for 6 hours. After completion of the reaction, DMF was distilled off under reduced pressure, 2N hydrochloric acid (50 mL) was added to the residue, the precipitated solid was collected, washed with water and hexane, and then sufficiently dried to give 2- {3-chloro- A pale yellow solid (0.55 g) of 5- (trifluoromethyl) pyridin-2-yl} amino-3-ethyl-6-pentafluoroethyl-4 (3H) -pyrimidinone [Compound No. 18] was obtained. Yield: 32%; mp: 136-138 ° C; 1 H-NMR (CDCl Three , TMS, ppm): δ1.36 (t, J = 7.0Hz, 3H), 4.40 (q, J = 7.0Hz, 2H), 6.38 (s, 1H), 7.94 (d, J = 2.1Hz, 1H) , 8.10 (s, 1H), 15.65 (br s, 1H).
[0124]
Hereinafter, formulation examples and test examples of the agricultural and horticultural insecticides and acaricides of the present invention will be shown.
Formulation example-1: wettable powder
20 parts by weight of the compound of the present invention, 20 parts by weight of Carplex # 80 (white carbon, Shionogi Pharmaceutical Co., Ltd., trade name), 52 parts by weight of ST kaolin clay (Kaolinite, Tsuchiya Kaolin, trade name), Solpol 9047K ( Anionic surfactant, Toho Chemical Co., Ltd., trade name) 5 parts by weight, Lunox P65L (anionic surfactant, Toho Chemical Co., Ltd., trade name) 3 parts by weight, mixed and ground uniformly, effective A wettable powder containing 20% by weight of ingredients was obtained.
Formulation Example-2: Powder
2 parts by weight of the compound of the present invention, 93 parts by weight of clay (manufactured by Nippon Talc Co., Ltd.), and 5 parts by weight of Carplex # 80 (white carbon, Shionogi Pharmaceutical Co., Ltd., trade name) are uniformly mixed and ground to obtain active ingredient 2 A weight percent powder was produced.
Formulation Example-3: Emulsion
The compound of the present invention is added and dissolved in a mixed solvent consisting of 20 parts by weight of xylene and 35 parts by weight of xylene and 30 parts by weight of dimethylformamide. To this, Solpol 3005X (mixture of nonionic surfactant and anionic surfactant, Toho Chemical) Co., Ltd., trade name) 15 parts by weight was added to obtain an emulsion of 20% by weight active ingredient.
Formulation Example 4: Flowable Agent
30 parts by weight of the present compound, 5 parts by weight of Solpol 9047K (same as above), 3 parts by weight of sorbon T-20 (nonionic surfactant, Toho Chemical Co., Ltd., trade name), 8 parts by weight of ethylene glycol and 44 parts by weight of water Parts were wet pulverized with Dynomill (Shinmaru Enterprises Co., Ltd.), 10 parts by weight of a 1% by weight xanthan gum (natural polymer) aqueous solution was added to the slurry mixture, mixed and pulverized well, and a flowable 20% by weight active ingredient. An agent was obtained.
[0125]
Test Example-1: Insecticidal effect on larvae of diamondback moth
Cabbage cut leaves (6 cm in diameter) were immersed for 1 minute in a water-diluted solution of the insecticide (hydrating agent) of the present invention produced according to the formulation of Preparation Example-1. After immersion, it was air-dried and placed in a plastic cup (inner diameter: 7 cm), and 5 third instar larvae were released in this cup (1 concentration, 2 repetitions). The mortality of the larvae and the bitter melon were investigated 4 days after the release, and the insecticidal rate (%) was determined with ½ of the bitter worms dead. The results are shown in Table-1.
[0126]
Figure 0004674676
[0127]
Test Example-2: Insecticidal effect on larvae of Spodoptera litura
Cabbage cut leaves (6 cm in diameter) were immersed for 1 minute in a water-diluted solution of the insecticide (hydrating agent) of the present invention produced according to the formulation of Preparation Example-1. After soaking, it was air-dried and placed in a plastic cup (inner diameter: 7 cm), and 5 third-instar larvae were released in this cup (1 concentration, 2 repetitions). It was kept in a constant temperature room at 25 ° C., and after 5 days of larvae, mortality and bitterness of the larvae were investigated, and the insecticidal rate (%) was determined with the half of the bitter worms dead. The results are shown in Table-2.
[0128]
Figure 0004674676
[0129]
Test Example-3: Insecticidal effect on adult weevil weevil
Two red beans were placed in a glass cylinder (inner diameter 3 cm × length 15 cm), and 10 adult weevil larvae were released. The aqueous diluted solution (0.3 mL) of the insecticide (emulsion) of the present invention produced according to the formulation of Preparation Example-3 was sprayed onto the glass cylinder using a spray tower (manufactured by Mizuho Rika) (1 concentration, 2 repetitions). ). It was kept in a thermostatic chamber at 25 ° C., and after 4 days of treatment, the mortality and bitterness of the larvae were investigated, and the insecticidal rate (%) was determined with the half of the bitter worms dead. The results are shown in Table-3.
[0130]
Figure 0004674676
[0131]
【The invention's effect】
The insecticide and acaricide containing the 2-substituted aminopyrimidinone derivative of the present invention as an active ingredient have an extremely excellent control effect against pests and mites in various agricultural and horticultural fields, Useful as an acaricide.

Claims (1)

一般式(1)
Figure 0004674676
(式中、Rはハロゲン原子及び/又はC〜Cハロアルキル基で置換されていてもよい、ピリジル基、チアジアゾリル基、ベンゾチアゾリル基、又はピリミジル基を表す。
はC1〜C4ハロアルキル基を表し、Rは水素原子又はハロゲン原子を表し、RはC1〜C6アルキル基、ビニル基、シクロヘキシルメチル基、又はC7〜C11アラルキル基を表す。Rは水素原子を表す。)で示される2−置換アミノピリミジノン誘導体を有効成分とする農園芸用殺虫、殺ダニ剤
General formula (1)
Figure 0004674676
(In the formula, R represents a pyridyl group, a thiadiazolyl group, a benzothiazolyl group, or a pyrimidyl group, which may be substituted with a halogen atom and / or a C 1 to C 4 haloalkyl group.
R 1 represents a C 1 to C 4 haloalkyl group, R 2 represents a hydrogen atom or a halogen atom, R 3 represents a C 1 to C 6 alkyl group, a vinyl group, a cyclohexylmethyl group, or a C 7 to C 11 aralkyl group. Represents. R 4 represents a hydrogen atom. Agricultural and horticultural insecticides and acaricides which comprise a 2-substituted aminopyrimidinone derivative represented by
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WO1998051152A1 (en) * 1997-05-15 1998-11-19 Sagami Chemical Research Center Insecticidal/acaricidal agents
WO1999052881A1 (en) * 1998-04-15 1999-10-21 Sagami Chemical Research Center 2-anilinopyrimidinone derivatives, intermediates in the production thereof, process for producing the same and pesticides containing the same as the active ingredient
WO2000029387A1 (en) * 1998-11-12 2000-05-25 Sagami Chemical Research Center 2-anilino-4(3h)-pyrimidinone derivatives, intermediates in the production thereof, process for producing the same and pesticides containing the same as the active ingredient

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WO1998051152A1 (en) * 1997-05-15 1998-11-19 Sagami Chemical Research Center Insecticidal/acaricidal agents
WO1998051675A1 (en) * 1997-05-15 1998-11-19 Sagami Chemical Research Center Anilinopyrimidinone derivatives, processes for producing the same, and insecticidal/acaricidal agents containing the same as active ingredient
WO1999052881A1 (en) * 1998-04-15 1999-10-21 Sagami Chemical Research Center 2-anilinopyrimidinone derivatives, intermediates in the production thereof, process for producing the same and pesticides containing the same as the active ingredient
WO2000029387A1 (en) * 1998-11-12 2000-05-25 Sagami Chemical Research Center 2-anilino-4(3h)-pyrimidinone derivatives, intermediates in the production thereof, process for producing the same and pesticides containing the same as the active ingredient

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