JP2517992B2 - Pyridylpyrimidine derivative and plant disease controlling agent containing the same - Google Patents

Pyridylpyrimidine derivative and plant disease controlling agent containing the same

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Publication number
JP2517992B2
JP2517992B2 JP62299044A JP29904487A JP2517992B2 JP 2517992 B2 JP2517992 B2 JP 2517992B2 JP 62299044 A JP62299044 A JP 62299044A JP 29904487 A JP29904487 A JP 29904487A JP 2517992 B2 JP2517992 B2 JP 2517992B2
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Japan
Prior art keywords
reaction
general formula
group
derivative represented
alkyl group
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Japanese (ja)
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JPS63264478A (en
Inventor
次裕 加藤
清人 前田
正男 城下
典久 山下
穣 実光
井上  悟
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Sumitomo Chemical Co Ltd
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Sumitomo Chemical Co Ltd
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Description

【発明の詳細な説明】 <産業上の利用分野> 本発明は新規なピリジルピリミジン誘導体およびそれ
を有効成分とする植物病害防除剤に関する。
TECHNICAL FIELD The present invention relates to a novel pyridylpyrimidine derivative and a plant disease control agent containing the same as an active ingredient.

<従来の技術> これまで、ピリジルピリミジン誘導体として、例えば
4−メチル−2−(2−ピリジル)ピリミジン、4−フ
ェニル−2−(2−ピリジル)ピリミジンの合成例がJ.
Org.Chem.,32,1591(1967)に記載されており、N,N−ジ
メチル−2−(6−メチル−2−ピリジル−ピリミジン
−4−イルチオ)エチルアミンがフレオマイシン(医
薬)の増強剤として用いられることがAust.J.Chem.,35,
1203(1982)に記載されている。
<Prior Art> As a pyridylpyrimidine derivative, for example, 4-methyl-2- (2-pyridyl) pyrimidine and 4-phenyl-2- (2-pyridyl) pyrimidine have been synthesized in J.
Org. Chem., 32 , 1591 (1967), N, N-dimethyl-2- (6-methyl-2-pyridyl-pyrimidin-4-ylthio) ethylamine is used as an enhancer of phleomycin (medicine). Used in Aust.J.Chem., 35 ,
1203 (1982).

しかしながら、上記誘導体が殺菌活性を示すことは何
ら知られていない。
However, it is not known that the above-mentioned derivatives exhibit bactericidal activity.

<発明が解決しようとする問題点> 本発明は、多くの植物病害に対して予防的あるいは治
療的に防除効力を有する化合物の開発を目的とするもの
である。
<Problems to be Solved by the Invention> The present invention aims to develop a compound having a preventive or therapeutic control effect against many plant diseases.

<問題点を解決するための手段> 本発明者らは、上記目的を達成するために、鋭意検討
を重ねた結果、一般式 〔式中、R1は低級アルキル基を表わし、R2およびR3は同
一または相異なり水素原子またはメチル基を表わし、n
は0〜5の整数を表わし、R4は同一または相異なり、低
級アルキル基、低級アルコキシ基、低級ハロアルキル基
またはハロゲン原子を表わし、R5は水素原子または低級
アルキル基を表わし、R6は水素原子、低級アルキル基、
低級アルコキシ基、低級アルケニルオキシ基または低級
アルキルチオ基を表わす。〕 で示されるピリジルピリミジン誘導体(以下、本発明化
合物を記す。)が、優れた殺菌活性を有することを見出
し、本発明に至った。
<Means for Solving Problems> The inventors of the present invention have conducted extensive studies in order to achieve the above-mentioned object, and as a result, a general formula [In the formula, R 1 represents a lower alkyl group, R 2 and R 3 are the same or different and represent a hydrogen atom or a methyl group, and n
Represents an integer of 0 to 5, R 4 is the same or different and represents a lower alkyl group, a lower alkoxy group, a lower haloalkyl group or a halogen atom, R 5 represents a hydrogen atom or a lower alkyl group, and R 6 represents hydrogen. Atom, lower alkyl group,
It represents a lower alkoxy group, a lower alkenyloxy group or a lower alkylthio group. ] It was found that the pyridylpyrimidine derivative represented by the formula (hereinafter, referred to as the compound of the present invention) has excellent bactericidal activity, and the present invention was completed.

本発明化合物によって防除できる植物病害としては、
イネのいもち病(Pyricularia oryzae)、ごま葉枯病
(Cochliobolus miyabeanus)、紋枯病(Rhizoctonia s
olani)、ムギ類のうどんこ病(Erysphe graminis f.s
p.hordei、f.sp.tritici)、斑葉病(Pyrenophora gram
inea)、さび病(Puccinia striiformis、P.graminis、
P.recondita、P.hordei)、アイスポット(Pseudocerco
sporella herpotrichoides)、雲形病(Rhynchos poriu
m secalis)、葉枯病(Septoria tritici)、ふ枯病(L
eptosphaeria nodorum)、カンキツの黒点病(Diaporth
e citri)、そうか病(Elsinoe fawcetti)、リンゴの
うどんこ病(Podosphaera leucotricha)、斑点落葉病
(Alternaria mali)、黒星病(Venturia inaequali
s)、ナシの黒星病(Venturia nashicola)、黒斑病(A
lternaria kikuchiana)、モモの灰星病(Sclerotinia
cinerea)、ブドウの黒とう病(Elsinoe ampelina)、
晩腐病(Glomorella cingulata)、うどんこ病(Uncinv
la necator)、ウリ類の炭そ病(Colletotrichum lagen
arium)、うどんこ病(Sphaerotheca fuliginea)、ト
マトの輪紋病(Alternaria solani)、疫病(Phytophth
ora infestans)、ナスの褐紋病(Phomopsis vexan
s)、アブラナ科野菜の黒斑病(Alternbria japonic
a)、白斑病(Gercosporella brassicae)、ネギのさび
病(Puccinia allii)、ダイズの紫斑病(Cercospora k
ikuchii)、黒とう病(Elsinoe glycines)、インゲン
の炭そ病(Colletotrichum lindemuthianum)、ラッカ
セイの黒渋病(Mycosphaerella personatum)、褐斑病
(Cercospora arachidicola)、エンドウのうどんこ病
(Erysiphepisi)、ジャガイモの夏疫病(Alternaria s
olani)、テンサイの褐斑病(Cercospora beticola)、
バラの黒星病(Diplocarpon rosae)、うどんこ病(Sph
aerotheca pannosa)、種々の作物の灰色かび病(Botry
tis cinerea)、菌核病(Sclerotinia sclerotiorum)
等があげられる。
Plant diseases that can be controlled by the compound of the present invention include:
Rice blast (Pyricularia oryzae), sesame leaf blight (Cochliobolus miyabeanus), Rhizoctonia s
olani), wheat powdery mildew (Erysphe graminis fs)
p.hordei, f.sp.tritici), leaf spot (Pyrenophora gram)
inea), rust (Puccinia striiformis, P. graminis,
P.recondita, P.hordei), eye spot (Pseudocerco
sporella herpotrichoides), cloud disease (Rhynchos poriu)
m secalis), leaf blight (Septoria tritici), wilt disease (L
eptosphaeria nodorum), black spot of citrus (Diaporth)
ecitri), scab (Elsinoe fawcetti), powdery mildew of apple (Podosphaera leucotricha), leaf spot (Alternaria mali), scab (Venturia inaequali)
s), pear scab (Venturia nashicola), black spot (A
lternaria kikuchiana), peach scab (Sclerotinia)
cinerea), black disease of grapes (Elsinoe ampelina),
Late rot (Glomorella cingulata), powdery mildew (Uncinv
la necator), anthracnose of cucumber (Colletotrichum lagen
arium), powdery mildew (Sphaerotheca fuliginea), tomato ring spot (Alternaria solani), plague (Phytophth)
ora infestans), brown leaf spot of eggplant (Phomopsis vexan)
s), Black spot of cruciferous vegetables (Alternbria japonic
a), White spot (Gercosporella brassicae), Green onion rust (Puccinia allii), Soybean purpura (Cercospora k)
ikuchii), black scab (Elsinoe glycines), kidney anthracnose (Colletotrichum lindemuthianum), peanut black scab (Mycosphaerella personatum), brown spot (Cercospora arachidicola), pea powdery mildew (Erysiphepisi), potato Summer plague (Alternaria s
olani), brown spot of sugar beet (Cercospora beticola),
Rose scab (Diplocarpon rosae), powdery mildew (Sph)
aerotheca pannosa), gray mold of various crops (Botry
tis cinerea), sclerotinia sclerotiorum
And the like.

次に本発明化合物の製造法について詳しく説明する。 Next, the method for producing the compound of the present invention will be described in detail.

本発明化合物のうち一般式 〔式中、R1、R2、R3、R4、R5およびnは前記と同じ意味
を表わし、▲R ▼は水素原子を表わす。〕 で示されるピリジルピリミジン誘導体は、一般式 〔式中、R1、R2、R3、R4、R5およびnは前記と同じ意味
を表わし、Xはハロゲン原子を表わす。〕 で示されるハロピリミジン誘導体を還元することにより
得られる。
General formula of the compound of the present invention [In the formula, R 1 , R 2 , R 3 , R 4 , R 5 and n have the same meanings as described above, and ▲ R 6 ▼ represents a hydrogen atom. ] The pyridylpyrimidine derivative represented by [In the formula, R 1 , R 2 , R 3 , R 4 , R 5 and n have the same meanings as described above, and X represents a halogen atom. ] It is obtained by reducing the halopyrimidine derivative represented by

たとえば、接触還元の場合、標準的には、一般式〔II
I〕で示されるハロピリミジン誘導体を溶媒中、触媒存
在下、水素ガスと常圧あるいは、加圧下、室温〜50℃、
0.5〜3時間接触させることにより上記一般式〔II〕で
示されるピリジルピリミジン誘導体を得ることができ
る。
For example, in the case of catalytic reduction, the general formula [II
I) in a solvent, a halopyrimidine derivative in the presence of a catalyst, hydrogen gas and atmospheric pressure or under pressure, room temperature to 50 ℃,
By contacting for 0.5 to 3 hours, the pyridylpyrimidine derivative represented by the above general formula [II] can be obtained.

上記反応に用いうる溶媒としては、メタノール、エタ
ノール等の低級アルコール類、ジオキサン、酢酸エチル
等のエステル類、トルエン等の芳香族炭化水素類、水お
よびそれらの混合物等があげられる。触媒としてはパラ
ジウム炭素等があげられ、水素圧は1〜3気圧が好まし
い。
Examples of the solvent that can be used in the above reaction include lower alcohols such as methanol and ethanol, esters such as dioxane and ethyl acetate, aromatic hydrocarbons such as toluene, water and a mixture thereof. Examples of the catalyst include palladium carbon and the like, and the hydrogen pressure is preferably 1 to 3 atm.

また好ましくは、脱ハロゲン化水素剤の存在下で反応
を行なう。脱ハロゲン化水素剤としては、例えばアンモ
ニア、水酸化ナトリウム、炭酸ナトリウム、酢酸ナトリ
ウム等の塩基あるいはDowex1 (ダウケミカル社登録商
標)等の塩基性イオン交換樹脂があげられる。
 Also preferably, the reaction is carried out in the presence of a dehydrohalogenating agent.
Perform Examples of the dehydrohalogenating agent include ammonia.
Near, sodium hydroxide, sodium carbonate, sodium acetate
Base such as um or Dowex1 (Registered Dow Chemical Company
Standard ion exchange resins such as standard).

反応終了後の反応液は、触媒を過にて除き、減圧濃
縮する。次いで、脱ハロゲン化水素剤を使用しない場合
は、炭酸ナトリウム水溶液等の無機塩基水溶液を加えた
後、有機溶媒抽出し、脱ハロゲン化水素剤を使用した場
合は、水を加えた後、有機溶媒抽出を行う。その後、減
圧濃縮等の通常の後処理を行い、必要に応じ、クロマト
グラフィー等の操作に付すことにより目的化合物を得る
ことができる。
After completion of the reaction, the reaction solution is concentrated under reduced pressure by removing the catalyst in excess. Next, when the dehydrohalogenating agent is not used, an inorganic base aqueous solution such as an aqueous solution of sodium carbonate is added, followed by extraction with an organic solvent, and when the dehydrohalogenating agent is used, water is added, and then the organic solvent is added. Extract. Then, the usual post-treatment such as concentration under reduced pressure is carried out, and if necessary, the desired compound can be obtained by subjecting to operations such as chromatography.

また本発明化合物のうち、一般式 〔式中、R1、R2、R3、R4、R5およびnは前記と同じ意味
を表わし、▲R ▼は低級アルコキシ基、低級アルケ
ニルオキシ基または低級アルキルチオ基を表わす。〕 で示されるピリジルピリミジン誘導体は、一般式〔II
I〕で示されるハロピリミジン誘導体と一般式 ▲R ▼Y 〔V〕 〔式中、▲R ▼は前記と同じ意味を表わし、Yはア
ルカリ金属原子を表わす。〕 で示されるアルカリ金属誘導体とを反応させることによ
って得られる。
Further, among the compounds of the present invention, the general formula [In the formula, R 1 , R 2 , R 3 , R 4 , R 5 and n have the same meanings as described above, and ▲ R 6 ▼ represents a lower alkoxy group, a lower alkenyloxy group or a lower alkylthio group.] The pyridylpyrimidine derivative represented by
And a halopyrimidine derivative represented by the formula [I] and a general formula ▲ R 6 ▼ Y [V] [wherein, ▲ R 6 ▼ has the same meaning as described above, and Y represents an alkali metal atom. ] It is obtained by reacting with an alkali metal derivative represented by

該アルカリ金属誘導体のアルカリ金属原子としては、
例えばナトリウム、カリウム等があげられる。
As the alkali metal atom of the alkali metal derivative,
Examples thereof include sodium and potassium.

上記反応において標準的には、反応温度は10〜120
℃、反応時間は10分間〜48時間である。
In the above reaction, the reaction temperature is usually 10 to 120.
C, reaction time is 10 minutes to 48 hours.

また上記反応に供される試剤の量は、通常、上記一般
式〔III〕で示されるハロパリミジン誘導体1当量に対
して、一般式〔V〕で示されるアルカリ金属誘導体が1
〜1.5当量である。
The amount of the reagent used in the above reaction is usually 1 equivalent of the alkali metal derivative represented by the general formula [V] to 1 equivalent of the haloparimidine derivative represented by the general formula [III].
~ 1.5 equivalents.

上記反応において、反応溶媒は必ずしも必要ではない
が、一般的には溶媒の存在下に行われる。使用しうる溶
媒としては、一般式〔V〕において▲R ▼が低級ア
ルコキシ基または低級アルケニルオキシ基であるアルカ
リ金属化合物の場合は、対応するアルコール、例えば、
メタノール、エタノール、アリルアルコール等またはジ
エチルエーテル、ジオキサン、テトラヒドロフラン等の
エーテル類、トルエン等の芳香族炭化水素類あるいはそ
れらの混合物等があげられる。
In the above reaction, a reaction solvent is not always necessary, but it is generally carried out in the presence of a solvent. As the solvent that can be used, in the case of an alkali metal compound of the general formula [V] in which ▲ R 6 ▼ is a lower alkoxy group or a lower alkenyloxy group, a corresponding alcohol, for example,
Examples thereof include methanol, ethanol, allyl alcohol and the like, ethers such as diethyl ether, dioxane and tetrahydrofuran, aromatic hydrocarbons such as toluene, and mixtures thereof.

▲R ▼が低級アルキルチオ基であるアルカリ金属
化合物の場合は、ジエチルエーテル、ジオキサン、テト
ラヒドロフラン等のエーテル類、アセトニトリル等のニ
トリル類、トルエン等の芳香族炭化水素類、水等または
それらの混合物等があげられる。
When R 6 ▼ is an alkali metal compound having a lower alkylthio group, ethers such as diethyl ether, dioxane and tetrahydrofuran, nitriles such as acetonitrile, aromatic hydrocarbons such as toluene, water and the like or a mixture thereof Etc.

反応終了後の反応液は、減圧濃縮等の通常の後処理操
作を行ない、必要に応じクロマトグラフィー、再結晶等
の操作に付することにより目的化合物を得ることができ
る。
After completion of the reaction, the reaction solution is subjected to usual post-treatment operations such as concentration under reduced pressure and, if necessary, subjected to operations such as chromatography and recrystallization to obtain the target compound.

さらに本発明化合物のうち一般式 〔式中、R1、R2、R3、R4、R5およびnは前記と同じ意味
を表わし、▲R ▼は低級アルキル基を表わす。〕 で示されるピリジルピリミジン誘導体は一般式〔III〕
で示されるハロピリミジン誘導体と一般式 R7CH(COOR8 〔VII〕 〔式中、R7は水素原子または低級アルキル基を表わし、
R8は低級アルキル基を表わす。〕 で示されるマロン酸ジエステル誘導体とを塩基の存在下
反応させた後、加水分解し、さらに脱炭酸することによ
り得られる。
 Further, among the compounds of the present invention, the general formula(Where R1, R2, R3, RFour, RFiveAnd n have the same meanings as above
▲ R 6▼ represents a lower alkyl group. ] The pyridylpyrimidine derivative represented by the general formula [III]
And a halopyrimidine derivative represented by the general formula R7CH (COOR8)2 [VII] [In the formula, R7Represents a hydrogen atom or a lower alkyl group,
R8Represents a lower alkyl group. ] In the presence of a base with a malonic acid diester derivative represented by
After the reaction, hydrolysis and decarboxylation
Can be obtained.

上記一般式〔III〕で示されるハロピリミジン誘導体
と一般式〔VII〕で示されるマロン酸ジエステル誘導体
との反応において、該反応に用いられる塩基としては、
例えば、水素化ナトリウム等を水素化アルカリ金属類、
n−ブチルリチウム等のアルキルリチウム類、リチウム
ジイソプロピルアミド(LDA)等のリチウムジアルキル
アミド類、ナトリウムメトキシド等のアルカリ金属アル
コキシド類、水酸化ナトリウム等の水酸化アルカリ金属
類等があげられる。
In the reaction of the halopyrimidine derivative represented by the general formula [III] and the malonic acid diester derivative represented by the general formula [VII], as a base used in the reaction,
For example, sodium hydride and the like, alkali metal hydrides,
Examples thereof include alkyl lithiums such as n-butyl lithium, lithium dialkyl amides such as lithium diisopropylamide (LDA), alkali metal alkoxides such as sodium methoxide, and alkali metal hydroxides such as sodium hydroxide.

上記反応において標準的には、反応温度は0〜150
℃、反応時間は30分間〜24時間であり、該反応に供され
る試剤の量は、通常、上記一般式〔III〕で示されるハ
ロピリミジン誘導体1当量に対して、一般式〔VII〕で
示されるマロン酸ジエステル誘導体および塩基は夫々1
〜2当量である。
In the above reaction, the reaction temperature is usually 0 to 150.
C, the reaction time is 30 minutes to 24 hours, and the amount of the reagent to be used in the reaction is usually represented by the general formula [VII] with respect to 1 equivalent of the halopyrimidine derivative represented by the general formula [III]. The malonic acid diester derivative and base shown are each 1
~ 2 equivalents.

上記反応において、反応溶媒は必ずしも必要ではない
が、一般的には溶媒の存在下に行なわれる。使用しうる
溶媒としては、メタノール、エタノール等の低級アルコ
ール類、アセトニトリル等のニトリル類、ジエチルエー
テル、テトラヒドロフラン等のエーテル類、クロロホル
ム等のハロ炭化水素類、ベンゼン、トルエン等の芳香族
炭化水素類、クロロベンゼン等のハロ芳香族炭化水素
類、アセトン、メチルイソブチルケトン等のケトン類、
酢酸エチル等のエステル類、ジメチルスルホキシド、ス
ルホラン等の硫黄化合物またはそれらの混合物等があげ
られる。
In the above reaction, a reaction solvent is not always necessary, but it is generally carried out in the presence of a solvent. As a solvent that can be used, lower alcohols such as methanol and ethanol, nitriles such as acetonitrile, ethers such as diethyl ether and tetrahydrofuran, halohydrocarbons such as chloroform, benzene, aromatic hydrocarbons such as toluene, Haloaromatic hydrocarbons such as chlorobenzene, ketones such as acetone and methyl isobutyl ketone,
Examples thereof include esters such as ethyl acetate, sulfur compounds such as dimethyl sulfoxide and sulfolane, or a mixture thereof.

次に、上記反応の終了後、これを加水分解および脱炭
酸することにより目的化合物に導びくことができる。代
表的には上記、一般式〔III〕で示されるハロピリミジ
ン誘導体1当量に対して2.1〜5当量の塩基例えば水酸
化ナトリウム等の水酸化アルカリ金属類、または炭酸ナ
トリウム等のアルカリ金属炭酸塩等の水溶液あるいはメ
タノール、エタノール等の低級アルコールと該塩基の水
溶液との混合溶液を加えて反応温度10〜100℃、反応時
間10分間〜24時間でアルカリ加水分解反応を行う。次い
で、反応液に上記一般式〔III〕で示されるハロピリミ
ジン誘導体1当量に対して2.5〜6当量の酸、例えば硫
酸等の無機酸または酢酸等の有機酸を加えて、反応温度
20〜150℃、反応時間10分間〜24時間で脱炭酸反応を行
う。
Next, after completion of the above reaction, the compound can be led to the target compound by hydrolysis and decarboxylation. Typically, 2.1 to 5 equivalents of a base, for example, an alkali metal hydroxide such as sodium hydroxide or an alkali metal carbonate such as sodium carbonate is used with respect to 1 equivalent of the halopyrimidine derivative represented by the general formula [III]. Or an aqueous solution of a lower alcohol such as methanol or ethanol and an aqueous solution of the base is added to carry out an alkali hydrolysis reaction at a reaction temperature of 10 to 100 ° C. for a reaction time of 10 minutes to 24 hours. Then, 2.5 to 6 equivalents of an acid, for example, an inorganic acid such as sulfuric acid or an organic acid such as acetic acid is added to the reaction solution with respect to 1 equivalent of the halopyrimidine derivative represented by the general formula [III], and the reaction temperature is
Decarboxylation is carried out at 20 to 150 ° C for a reaction time of 10 minutes to 24 hours.

反応終了後は、水酸化ナトリウム等の水酸化アルカリ
金属類、水酸化カルシウム等の水酸化アルカリ土類金属
類、炭酸ナトリウム等のアルカリ金属炭酸塩、重曹等の
アルカリ金属炭酸水素塩、トリエチルアミン等の有機塩
基等で反応液を中性にした後、減圧濃縮、抽出等の通常
の後処理を行い、必要に応じて再結晶、カラムクロマト
グラフィー等の操作に付すことにより目的化合物を得る
ことができる。
After completion of the reaction, alkali metal hydroxides such as sodium hydroxide, alkaline earth metal hydroxides such as calcium hydroxide, alkali metal carbonates such as sodium carbonate, alkali metal hydrogen carbonates such as sodium bicarbonate, triethylamine, etc. After neutralizing the reaction solution with an organic base or the like, the target compound can be obtained by subjecting it to usual post-treatments such as concentration under reduced pressure and extraction, and recrystallization, column chromatography and the like, if necessary. .

さらに本発明化合物のうち一般式 〔式中、R1、R2、R3、R4およびnは前記と同じ意味を表
わし、▲R ▼および▲R ▼は水素原子を表わ
す。〕 で示されるピリジルピリミジン誘導体は、一般式 〔式、R1、R2およびR3は前記と同じ意味を表わす。〕 で示されるピコリンアミジン誘導体またはその塩と、一
般式 〔式中、R4およびnは前記と同じ意味を表わし、R9は低
級アルキル基を表わす。〕 で示されるエナミン誘導体とを塩基存在下反応させるこ
とによって得ることができる。
Further, among the compounds of the present invention, the general formula [In the formula, R 1 , R 2 , R 3 , R 4 and n have the same meanings as described above, and ▲ R ' 5 ▼ and ▲ R ' 6 ▼ represent hydrogen atoms. ] The pyridylpyrimidine derivative represented by [Formula, R 1 , R 2 and R 3 have the same meanings as described above. ] The picolinamidine derivative or its salt shown by these, and general formula [In the formula, R 4 and n have the same meanings as described above, and R 9 represents a lower alkyl group. ] It can be obtained by reacting with an enamine derivative represented by

上記反応において標準的には、反応温度は50〜150
℃、反応時間は1〜6時間である。
In the above reaction, the reaction temperature is usually 50 to 150.
C, reaction time is 1 to 6 hours.

また、上記反応に供される試剤の量は、通常、上記一
般式〔IX〕で示されるピコリンアミジン誘導体またはそ
の塩1当量に対して、一般式〔X〕で示されるエナミン
誘導体は1〜1.5当量であり、塩基は触媒量から2.5当量
である。
The amount of the reagent used in the reaction is usually 1 to 1.5 for the enamine derivative represented by the general formula [X] with respect to 1 equivalent of the picoline amidine derivative represented by the general formula [IX] or a salt thereof. Equivalent, base to catalytic equivalent to 2.5 equivalents.

使用しうる塩基としては、ナトリウムメトキシド等の
アルカリ金属アルコキシドまたはトリエチルアミン等の
有機塩基があげられる。用いうる溶媒としては、メタノ
ール等の低級アルコール類、テトラヒドロフラン等の環
状エーテル類、ピリジン、N,N−ジメチルホルムアミド
等およびそれらの混合物等があげられるが、通常メタノ
ール中、ナトリウムメトキシドまたはエタノール中、ナ
トリウムエトキシドを用いて行なうのが好ましい。
Examples of the base that can be used include alkali metal alkoxides such as sodium methoxide, and organic bases such as triethylamine. Examples of the solvent that can be used include lower alcohols such as methanol, cyclic ethers such as tetrahydrofuran, pyridine, N, N-dimethylformamide and the like, and mixtures thereof, but usually in methanol, in sodium methoxide or ethanol, Preference is given to using sodium ethoxide.

反応終了後の反応液は、減圧濃縮等の通常の後処理を
行ない、必要に応じ、クロマトグラフィー等に付するこ
とにより目的化合物を得ることができる。
The reaction solution after completion of the reaction is subjected to usual post-treatment such as concentration under reduced pressure, and if necessary subjected to chromatography or the like to obtain the target compound.

尚、前記一般式〔I〕で示される本発明化合物は、こ
れに、常法に従がい塩化水素、臭化水素、硫酸、硝酸等
の強酸を作用させることにより、夫々の塩に導びくこと
ができる。
The compound of the present invention represented by the above general formula [I] can be converted into its salt by reacting it with a strong acid such as hydrogen chloride, hydrogen bromide, sulfuric acid or nitric acid according to a conventional method. You can

これらの塩を製造する場合、例えば一般式〔I〕で示
される本発明化合物を溶媒に溶解し、氷冷下ないし室温
にて酸を気体あるいは水溶液にて1当量加えて10分〜1
時間放置した後、減圧濃縮等の後処理を行い、必要に応
じて再結晶等によって処理する。
In the case of producing these salts, for example, the compound of the present invention represented by the general formula [I] is dissolved in a solvent, and 1 equivalent of an acid is added as a gas or an aqueous solution under ice cooling or room temperature for 10 minutes to 1 minute.
After leaving for a time, post-treatment such as vacuum concentration is performed, and if necessary, recrystallization or the like is performed.

反応溶媒としてはメタノール、エタノール等の低級ア
ルコール、トルエン、ベンゼン等の芳香族炭化水素、エ
チルエーテル、テトラヒドロフラン、ジオキサン等のエ
ーテル類、クロロホルム等のハロゲン化炭化水素類、ア
セトン等のケトン類、酢酸エチル等のエステル類、ヘキ
サン等の炭化水素類、水またはそれらの混合物等があげ
られる。
As the reaction solvent, lower alcohols such as methanol and ethanol, aromatic hydrocarbons such as toluene and benzene, ethers such as ethyl ether, tetrahydrofuran and dioxane, halogenated hydrocarbons such as chloroform, ketones such as acetone, ethyl acetate. And the like, hydrocarbons such as hexane, water, or a mixture thereof.

本発明化合物を製造する場合の原料化合物である一般
式〔III〕で示されるハロピリミジン誘導体および一般
式〔IX〕で示されるピコリンアミジン誘導体はたとえば
以下の合成ルートで合成することができる。
The halopyrimidine derivative represented by the general formula [III] and the picoline amidine derivative represented by the general formula [IX], which are starting compounds for producing the compound of the present invention, can be synthesized, for example, by the following synthetic route.

〔式中、R1、R2、R3、R4、R5およびnは前記と同じ意味
を表わし、R10およびR11は低級アルキル基を表わし、M
はアルカリ金属原子を表わす。〕 すなわち、J.Org.Chem.,48,1375〜1377(1983)等に
記載されている方法で得られる一般式〔XI〕で示される
シアノピリジン誘導体と、一般式〔XII〕で示されるア
ルコキシドとを反応させることにより、一般式〔XIII〕
で示されるイミデート誘導体が得られ、該イミデート誘
導体とアンモニウム基とを反応させることにより、一般
式〔IX〕で示されるピコリンアミジン誘導体が得られ
る。
[Wherein R 1 , R 2 , R 3 , R 4 , R 5 and n represent the same meaning as described above, R 10 and R 11 represent a lower alkyl group, and M
Represents an alkali metal atom. ] That is, a cyanopyridine derivative represented by the general formula [XI] obtained by the method described in J. Org. Chem., 48 , 1375-1377 (1983) and an alkoxide represented by the general formula [XII]. By reacting with the general formula [XIII]
The imidate derivative represented by the following formula is obtained, and the picolinamidine derivative represented by the general formula [IX] is obtained by reacting the imidate derivative with an ammonium group.

次いでこのようにして得られる該ピコリンアミジン誘
導体またはその塩と一般式〔XIV〕で示されるβ−オキ
ソカルボン酸エステルとを塩基の存在下に反応させるこ
とにより、一般式〔XV〕で示されるヒドロキシピリミジ
ン誘導体が得られ、該ヒドロキシピリミジン誘導体とハ
ロゲン化剤とを反応させることにより、一般式〔III〕
で示されるハロピリミジン誘導体が得られる。
Then, the thus obtained picolinamidine derivative or a salt thereof is reacted with a β-oxocarboxylic acid ester represented by the general formula [XIV] in the presence of a base to give a hydroxy group represented by the general formula [XV]. A pyrimidine derivative is obtained, and the hydroxypyrimidine derivative is reacted with a halogenating agent to give a compound of the general formula [III]
A halopyrimidine derivative represented by is obtained.

以下に、上記の製法につき詳細に説明する。 The above manufacturing method will be described in detail below.

一般式〔XI〕で示されるシアノピリジン誘導体と、一
般式〔XII〕で示されるアルコキシドとの反応に於い
て、用いられるアルコキシドのアルカリ金属原子として
は例えば、ナトリウム原子、カリウム原子等があげられ
る。
In the reaction of the cyanopyridine derivative represented by the general formula [XI] and the alkoxide represented by the general formula [XII], examples of the alkali metal atom of the alkoxide used include a sodium atom and a potassium atom.

また該反応において、標準的には反応温度は10〜50
℃、反応時間は1〜48時間であり、反応に供される試剤
の量は一般式〔XI〕で示されるシアノピリジン誘導体1
当量に対して一般式〔XII〕で示されるアルコキシドは
0.1〜1当量である。
In the reaction, the reaction temperature is usually 10 to 50
C., the reaction time is 1 to 48 hours, and the amount of the reagent to be used in the reaction is the cyanopyridine derivative 1 represented by the general formula [XI].
The alkoxide represented by the general formula [XII] is equivalent to
It is 0.1 to 1 equivalent.

上記反応において、反応溶媒は必ずしも必要ではない
が、一般的には溶媒の存在下に行なわれる。
In the above reaction, a reaction solvent is not always necessary, but it is generally carried out in the presence of a solvent.

使用しうる溶媒としては、一般式〔XII〕で示される
アルコキシドのR10に対応の低級アルコール、例えば、
メタノール、エタノール、n−プロピルアルコール、イ
ソプロピルアルコール、n−ブチルアルコール等であ
り、好ましくはメタノール、エタノールがあげられる。
As the solvent that can be used, a lower alcohol corresponding to R 10 of the alkoxide represented by the general formula [XII], for example,
Methanol, ethanol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol and the like are preferable, and methanol and ethanol are preferable.

反応終了後の反応液は、酸により中和し、減圧濃縮し
た後、有機溶媒に溶解し、不溶のアルカリ金属塩を去
し、液を減圧濃縮して、必要に応じ、蒸留等の操作に
付すことにより目的の一般式〔XIII〕で示されるイミデ
ート誘導体を得ることができる。
After completion of the reaction, the reaction solution is neutralized with an acid, concentrated under reduced pressure, dissolved in an organic solvent to remove insoluble alkali metal salt, concentrated under reduced pressure, and optionally subjected to an operation such as distillation. By attaching it, the intended imidate derivative represented by the general formula [XIII] can be obtained.

次に上記で得られた一般式〔XIII〕で示されるイミデ
ート誘導体とアンモニウム塩との反応において、用いら
れるアンモニウム塩としては、例えば塩酸、臭化水素
酸、酢酸、蟻酸等のアンモニウム塩があげられる。
Next, in the reaction of the imidate derivative represented by the general formula [XIII] obtained above with an ammonium salt, examples of the ammonium salt to be used include ammonium salts such as hydrochloric acid, hydrobromic acid, acetic acid and formic acid. .

また該反応において、標準的には反応温度は30〜100
℃、反応時間は30分〜5時間であり、反応に供される試
剤の量は、一般式〔XIII〕で示されるイミデート誘導体
1当量に対してアンモニウム塩は通常1〜1.1当量であ
る。
In the reaction, the reaction temperature is typically 30 to 100.
C., the reaction time is 30 minutes to 5 hours, and the amount of the reagent used for the reaction is usually 1 to 1.1 equivalents relative to 1 equivalent of the imidate derivative represented by the general formula [XIII].

上記反応において溶媒は必ずしも必要ではないが一般
的には溶媒の存在下に行なわれる。
A solvent is not always necessary in the above reaction, but it is generally carried out in the presence of a solvent.

使用しうる溶媒としては低級アルコール、好ましくは
エタノールと水との混合溶媒があげられる。
The solvent that can be used is a lower alcohol, preferably a mixed solvent of ethanol and water.

反応終了後の反応液は、減圧濃縮等の通常の後処理を
行い、必要に応じ、再結晶等の操作により一般式〔IX〕
で示されるピコリンアミジン誘導体の塩酸、臭化水素
酸、酢酸、蟻酸等の塩を得ることができる。
After completion of the reaction, the reaction solution is subjected to usual post treatment such as concentration under reduced pressure, and if necessary, by operation such as recrystallization, the compound of the general formula [IX]
It is possible to obtain a salt of the picolinamidine derivative represented by: hydrochloric acid, hydrobromic acid, acetic acid, formic acid and the like.

このようにして得られた塩は、これを水酸化ナトリウ
ム、水酸化カリウム等の無機塩基あるいはナトリウムメ
トキシド、ナトリウムエトキシド等のアルカリ金属アル
コキシドなどにて中和するなどの通常の方法にて分解す
ることにより、一般式〔IX〕で示されるピコリンアミジ
ン誘導体に導くことができる。
The salt thus obtained is decomposed by a usual method such as neutralizing the salt with an inorganic base such as sodium hydroxide or potassium hydroxide or an alkali metal alkoxide such as sodium methoxide or sodium ethoxide. By doing so, a picolinamidine derivative represented by the general formula [IX] can be obtained.

また、該塩をそのまま次工程の反応に供し、該反応系
内で塩分解を行なうこともできる。
Alternatively, the salt may be subjected to the reaction of the next step as it is, and salt decomposition may be carried out in the reaction system.

次に、上記で得られた一般式〔IX〕で示されるピコリ
ンアミジン誘導体と一般式〔XIV〕で示されるβ−オキ
ソカルボン酸エステルとの反応に於いて、標準的には反
応温度は50〜150℃、反応時間は1〜24時間であり、反
応に供される試剤の量は、一般式〔IX〕で示されるピコ
リンアミジン誘導体またはその塩1当量に対して、一般
式〔XIV〕で示されるβ−オキソカルボン酸エステルは
通常1〜1.5当量、塩基は触媒量〜1.5当量である。上記
反応において溶媒は必ずしも必要ではないが、一般的に
は溶媒の存在下に行なわれる。
Next, in the reaction of the picolinamidine derivative represented by the general formula [IX] and the β-oxocarboxylic acid ester represented by the general formula [XIV] obtained above, the reaction temperature is usually 50 to 50 The reaction time is 150 ° C and the reaction time is 1 to 24 hours. The amount of the reagent used in the reaction is represented by the general formula [XIV] with respect to 1 equivalent of the picoline amidine derivative represented by the general formula [IX] or a salt thereof. The β-oxocarboxylic acid ester used is usually 1 to 1.5 equivalents, and the base is a catalytic amount to 1.5 equivalents. A solvent is not always necessary in the above reaction, but it is generally carried out in the presence of a solvent.

使用しうる溶媒としては、例えばメタノール、エタノ
ール等の低級アルコール類、ジオキサン、テトラヒドロ
フラン等の環状エーテル類、ピリジン、N,N−ジメチル
ホルムアミド、水等またはそれらの混合物があげられ、
塩基としては例えば、水酸化ナトリウム、水酸化カリウ
ム、炭酸カリウム等の無機塩基、ナトリウムメトキシド
等のアルカリ金属アルコキシド、トリエチルアミン、N,
N−ジエチルアニリン等の有機塩基等があげられる。
Examples of the solvent that can be used include lower alcohols such as methanol and ethanol, dioxane, cyclic ethers such as tetrahydrofuran, pyridine, N, N-dimethylformamide, water and the like, or a mixture thereof.
Examples of the base include sodium hydroxide, potassium hydroxide, inorganic bases such as potassium carbonate, alkali metal alkoxides such as sodium methoxide, triethylamine, N,
Examples thereof include organic bases such as N-diethylaniline.

反応終了後の反応液は、必要に応じ、塩を過等で除
去し、減圧濃縮等の通常の後処理を行い、必要に応じ、
クロマトグラフィー、再結晶等の操作により目的の一般
式〔XV〕で示されるヒドロキシピリミジン誘導体を得る
ことができる。
After completion of the reaction, the reaction solution is, if necessary, excessively removed of salt, and subjected to usual post-treatment such as concentration under reduced pressure, and if necessary,
The desired hydroxypyrimidine derivative represented by the general formula [XV] can be obtained by operations such as chromatography and recrystallization.

次に上記で得られた一般式〔XV〕で示されるヒドロキ
シピリミジン誘導体とハロゲン化剤との反応において、
用いられるハロゲン化剤としては、例えば、塩化チオニ
ル、ホスゲン、オキシ塩化リン、五塩化リン、オキシ臭
化リン、三臭化リン等があげられる。
Next, in the reaction of the hydroxypyrimidine derivative represented by the general formula [XV] obtained above with a halogenating agent,
Examples of the halogenating agent used include thionyl chloride, phosgene, phosphorus oxychloride, phosphorus pentachloride, phosphorus oxybromide, phosphorus tribromide and the like.

上記反応において、標準的には反応温度は50〜150
℃、反応時間は1〜10時間であり、反応に供される試剤
の量は、一般式〔XV〕で示されるヒドロキシピリミジン
誘導体1当量に対してハロゲン化剤は通常1〜10当量で
ある。
In the above reaction, the reaction temperature is usually 50 to 150.
C., the reaction time is 1 to 10 hours, and the amount of the reagent used for the reaction is usually 1 to 10 equivalents of the halogenating agent with respect to 1 equivalent of the hydroxypyrimidine derivative represented by the general formula [XV].

上記反応において溶媒は必ずしも必要ではないが一般
的には溶媒の存在下に行なわれる。
A solvent is not always necessary in the above reaction, but it is generally carried out in the presence of a solvent.

使用しうる溶媒としては、ベンゼン、トルエン等の芳
香族炭化水素類、クロロベンゼン等のハロゲン化炭化水
素等があげられる。
Examples of the solvent that can be used include aromatic hydrocarbons such as benzene and toluene, and halogenated hydrocarbons such as chlorobenzene.

反応終了後の反応液は、減圧濃縮後、水酸化ナトリウ
ム等の無機塩基等で中和後、有機溶媒抽出および濃縮等
の通常の後処理を行い、必要に応じ、クロマトグラフィ
ー、再結晶等の操作により目的の一般式〔III〕で示さ
れるハロピリミジン誘導体を得ることができる。
The reaction solution after completion of the reaction is concentrated under reduced pressure, neutralized with an inorganic base such as sodium hydroxide, and then subjected to usual post-treatments such as extraction with an organic solvent and concentration, and if necessary, chromatography, recrystallization, etc. By the operation, the desired halopyrimidine derivative represented by the general formula [III] can be obtained.

本発明化合物を植物病害防除剤の有効成分として用い
る場合は、他の何らの成分も加えずそのまま使用しても
よいが、通常は、固体担体、液体担体、界面活性剤その
他の製剤用補助剤と混合して、乳剤、水和剤、懸濁剤、
粒剤、粉剤液剤等に製剤して使用する。
When the compound of the present invention is used as an active ingredient of a plant disease controlling agent, it may be used as it is without adding any other component, but it is usually a solid carrier, a liquid carrier, a surfactant or other auxiliary agent for formulation. Mixed with emulsions, wettable powders, suspensions,
It is used by formulating it into granules, powder liquids, etc.

これらの製剤には有効成分として本発明化合物を、重
量比で0.1〜99%、好ましくは0.2〜95%含有する。
These formulations contain the compound of the present invention as an active ingredient in a weight ratio of 0.1 to 99%, preferably 0.2 to 95%.

固体担体としては、カオリンクレー、アッタパルジャ
イトクレー、ベントナイト、酸性白土、パイロフィライ
ト、タルク、珪藻土、方解石、トウモロコシ穂軸粉、ク
ルミ殻粉、尿素、硫酸アンモニウム、合成含水酸化珪素
等の微粉末あるいは粒状物があり、液体担体には、キシ
レン、メチルナフタレン等の芳香族炭化水素類、イソプ
ロパノール、エチレングリコール、セロソルブ等のアル
コール類、アセトン、シクロヘキサノン、イソホロン等
のケトン類、大豆油、綿実油等の植物油、ジメチルスル
ホキシド、アセトニトリル、水等があげられる。
As the solid carrier, kaolin clay, attapulgite clay, bentonite, acid clay, pyrophyllite, talc, diatomaceous earth, calcite, corncob powder, walnut shell powder, urea, ammonium sulfate, fine powder of synthetic hydrous silicon oxide or the like. There are granular materials, and liquid carriers include aromatic hydrocarbons such as xylene and methylnaphthalene, alcohols such as isopropanol, ethylene glycol and cellosolve, ketones such as acetone, cyclohexanone and isophorone, soybean oil, vegetable oil such as cottonseed oil. , Dimethyl sulfoxide, acetonitrile, water and the like.

乳化、分散、湿展等のために用いられる界面活性剤と
しては、アルキル硫酸エステル塩、アルキル(アリー
ル)スルホン酸塩、ジアルキルスルホこはく酸塩、ポリ
オキシエチレンアルキルアリールエーテルりん酸エステ
ル塩、ナフタレンスルホン酸ホルマリン縮合物等の陰イ
オン界面活性剤、ポリオキシエチレンアルキルエーテ
ル、ポリオキシエチレンポリオキシプロピレンブロック
コポリマー、ソルビタン脂肪酸エステル、ポリオキシエ
チレンソルビタン脂肪酸エステル等の非イオン界面活性
剤等があげられる。製剤用補助剤としては、リグニンス
ルホン酸塩、アルギン酸塩、ポリビニルアルコール、ア
ラビアガム、CMC(カルボキシメチルセルロース)、PAP
(酸性りん酸イソプロピル)等があげられる。
Surfactants used for emulsification, dispersion, wet spreading, etc. include alkyl sulfates, alkyl (aryl) sulfonates, dialkyl sulfosuccinates, polyoxyethylene alkyl aryl ether phosphates, and naphthalene sulfones. Examples include anionic surfactants such as acid formalin condensates, and nonionic surfactants such as polyoxyethylene alkyl ethers, polyoxyethylene polyoxypropylene block copolymers, sorbitan fatty acid esters, and polyoxyethylene sorbitan fatty acid esters. Pharmaceutical adjuvants include lignin sulfonate, alginate, polyvinyl alcohol, gum arabic, CMC (carboxymethylcellulose), PAP
(Acid isopropyl phosphate) and the like.

これらの製剤は、そのままで使用するか、あるいは水
で希釈して、茎葉散布するか、土壌に散粉、散粒して混
和するかあるいは土壌施用等する。また、他の植物病害
防除剤と混合して用いることにより、防除効力の増強を
も期待できる。さらに、殺虫剤、殺ダニ剤、殺線虫剤、
除草剤、植物生長調節剤、肥料、土壌改良剤等と混合し
て用いることもできる。
These preparations can be used as they are, or diluted with water and then sprayed on foliage, dusted or dispersed in soil and mixed, or applied to soil. In addition, by mixing with other plant disease controlling agents to be used, it can be expected to enhance the controlling effect. In addition, insecticides, acaricides, nematicides,
It can also be used as a mixture with herbicides, plant growth regulators, fertilizers, soil conditioners and the like.

本発明化合物を植物病害防除剤の有効成分として用い
る場合、その処理量は、気象条件、製剤形態、処理時
期、方法、場所、対象病害、対象作物等によっても異な
るが、通常1アールあたり0.2〜200g、好ましくは1〜1
00gであり、乳剤、水和剤、懸濁剤、液剤等を水で希釈
して施用する場合、その施用濃度は、0.005〜0.5%好ま
しくは0.01〜0.2%であり、粒剤、粉剤等は、なんら希
釈することなくそのまま施用する。
When the compound of the present invention is used as an active ingredient of a plant disease control agent, the amount to be treated varies depending on weather conditions, formulation form, treatment time, method, location, target disease, target crop, etc. 200g, preferably 1-1
00 g, when the emulsion, wettable powder, suspension, liquid, etc. are diluted with water and applied, the application concentration is 0.005-0.5%, preferably 0.01-0.2%, and granules, powders, etc. , Apply as it is without any dilution.

<実施例> 以下に、本発明を製造例、参考例、製剤例および試験
例によりさらに詳しく説明する。
<Example> Hereinafter, the present invention will be described in more detail with reference to Production Examples, Reference Examples, Formulation Examples, and Test Examples.

まず製造例を示す。 First, a production example is shown.

製造例1 (化合物(5)) 4−クロロ−2−(6−メチル−2−ピリジル)−6
−o−トリルピリミジン1gをトルエン10mlとエタノール
5mlに溶解し、これに炭酸ナトリウム0.27gを水5mlに溶
かした溶液と5%パラジウム−炭素0.1gを加え、室温に
て水素ガスと接触させた。30分後、触媒を去し、水20
mlとトルエン30mlを加え抽出した。有機層を無水硫酸マ
グネシウムで乾燥した後、減圧濃縮して、2−(6−メ
チル−2−ピリジル)−6−o−トリルピリミジン0.82
gを得た。
Production Example 1 (Compound (5)) 4-chloro-2- (6-methyl-2-pyridyl) -6
-O-Tolylpyrimidine 1g Toluene 10ml and ethanol
It was dissolved in 5 ml, and a solution of 0.27 g of sodium carbonate in 5 ml of water and 0.1 g of 5% palladium-carbon were added thereto, and the mixture was contacted with hydrogen gas at room temperature. After 30 minutes, remove the catalyst and wash with water 20
ml and 30 ml of toluene were added for extraction. The organic layer was dried over anhydrous magnesium sulfate and then concentrated under reduced pressure to give 2- (6-methyl-2-pyridyl) -6-o-tolylpyrimidine 0.82.
got g.

m.p. 119.4℃ PMR(CDCl3)δppm: 2.53(s,3H,−CH3) 2.74(s,3H,−CH3) 9.00(d,1H,ピリミジン−H6,J=4.2Hz) 製造例2 (化合物(14)) 4−クロロ−6−(2,4−ジメチルフェニル)−2−
(6−メチル−2−ピリジル)ピリミジン1gにメタノー
ル5mlを加え、これに28%ナトリウムメトキシドメタノ
ール溶液0.8gを加え30分間室温で撹拌した。反応液に水
30ml、クロロホルム100mlを加え分液し、クロロホルム
層を水洗した後、無水硫酸マグネシウムで乾燥した。減
圧濃縮して6−(2,4−ジメチルフェニル)−4−メト
キシ−2−(6−メチル−2−ピリジル)ピリミジン0.
9gを得た。
mp 119.4 ° C PMR (CDCl 3 ) δppm: 2.53 (s, 3H, -CH 3 ) 2.74 (s, 3H, -CH 3 ) 9.00 (d, 1H, pyrimidine-H 6 , J = 4.2Hz) Production Example 2 ( Compound (14)) 4-chloro-6- (2,4-dimethylphenyl) -2-
5 ml of methanol was added to 1 g of (6-methyl-2-pyridyl) pyrimidine, 0.8 g of 28% sodium methoxide methanol solution was added thereto, and the mixture was stirred at room temperature for 30 minutes. Water as the reaction liquid
30 ml of chloroform and 100 ml of chloroform were added for liquid separation, the chloroform layer was washed with water, and then dried over anhydrous magnesium sulfate. Concentrated under reduced pressure to give 6- (2,4-dimethylphenyl) -4-methoxy-2- (6-methyl-2-pyridyl) pyrimidine.
I got 9g.

m.p. 97.7℃ PMR(CDCl3)δppm 1.28(s,3H,CH3) 1.42(s,3H,CH3) 1.62(s,3H,CH3) 4.07(s,3H,OCH3) 6.70(s,1H,ピリミジン−H5) 7.52(t,1H,ピリジン−H4,J=7.2Hz) 8.16(d,1H,ピリジン−H3,J=7.2Hz) 製造例3 (化合物(19)) 4−クロロ−6−o−フルオロフェニル−2−(6−
メチル−2−ピリジル)ピリミジン1gに、金属ナトリウ
ム0.1gとメタノール10mlより調製したナトリウムメトキ
シドを加え1時間室温で撹拌した。これに水30mlと酢酸
エチル100mlを加え抽出した。有機層を無水硫酸マグネ
シウムで乾燥した後、減圧濃縮して、4−o−フルオロ
フェニル−6−メトキシ−2−(6−メチル−2−ピリ
ジル)ピリミジン0.82gを得た。
mp 97.7 ℃ PMR (CDCl 3 ) δppm 1.28 (s, 3H, CH 3 ) 1.42 (s, 3H, CH 3 ) 1.62 (s, 3H, CH 3 ) 4.07 (s, 3H, OCH 3 ) 6.70 (s, 1H , pyrimidine -H 5) 7.52 (t, IH, pyridine -H 4, J = 7.2Hz) 8.16 (d, 1H, pyridine -H 3, J = 7.2 Hz) production example 3 (compound (19)) 4-chloro -6-o-fluorophenyl-2- (6-
Sodium methoxide prepared from 0.1 g of metallic sodium and 10 ml of methanol was added to 1 g of methyl-2-pyridyl) pyrimidine, and the mixture was stirred at room temperature for 1 hour. To this, 30 ml of water and 100 ml of ethyl acetate were added for extraction. The organic layer was dried over anhydrous magnesium sulfate and then concentrated under reduced pressure to obtain 0.82 g of 4-o-fluorophenyl-6-methoxy-2- (6-methyl-2-pyridyl) pyrimidine.

m.p. 99.5℃ PMR(CDCl3)δppm 2.65(s,3H,−CH ) 4.08(s,3H,−OCH ) 7.58(t,1H,ピリジン−H4,J=7.2Hz) 製造例4 (化合物(7)) ジエチルマロン酸1.4gと60%油性水素化ナトリウム0.
35gをテトラヒドロフラン30mlに加え、これに4−クロ
ロ−2−(6−メチル−2−ピリジル)−6−o−トリ
ルピリミジン2gを加えた。これを30分間加熱還流した
後、水酸化ナトリウム0.8gを水10mlとエタノール10mlに
溶解した混液を加えさらに30分間加熱還流した。
mp 99.5 ° C PMR (CDCl 3 ) δppm 2.65 (s, 3H, -CH 3 ) 4.08 (s, 3H, -O CH 3 ) 7.58 (t, 1H, pyridine-H 4 , J = 7.2Hz) Production Example 4 ( Compound (7)) 1.4 g of diethylmalonic acid and 60% oily sodium hydride
35 g of tetrahydrofuran was added to 30 ml of tetrahydrofuran, and 2 g of 4-chloro-2- (6-methyl-2-pyridyl) -6-o-tolylpyrimidine was added thereto. This was heated under reflux for 30 minutes, then a mixed solution of 0.8 g of sodium hydroxide dissolved in 10 ml of water and 10 ml of ethanol was added, and the mixture was heated under reflux for another 30 minutes.

さらに反応液に濃硫酸1.5gを加え、30分間加熱還流し
た。反応後反応液を炭酸ナトリウム溶液で中性し減圧濃
縮した後、残渣をシリカゲルカラムクロマトグラフィー
(ヘキサン:アセトン=2:1)で処理し、4−メチル−
2−(6−メチル−2−ピリジル)−6−o−トリルピ
リミジン1.2gを得た。
Further, 1.5 g of concentrated sulfuric acid was added to the reaction solution, and the mixture was heated under reflux for 30 minutes. After the reaction, the reaction solution was neutralized with sodium carbonate solution and concentrated under reduced pressure, and the residue was treated with silica gel column chromatography (hexane: acetone = 2: 1) to give 4-methyl-
1.2 g of 2- (6-methyl-2-pyridyl) -6-o-tolylpyrimidine was obtained.

m.p. 83.2℃ PMR(CDCl3)δppm 2.47(s,3H,CH3) 2.69(s,6H,2×CH3) 7.63(t,1H,ピリジン−H4,J=7.8Hz) 製造例5 (化合物(34)) ジエチルマロン酸1.5gと60%油性水素化ナトリウム0.
4gをテトラヒドロフラン30mlに加え、これに4−クロロ
−6−o−クロロフェニル−2−(6−メチル−2−ピ
リジル)ピリミジン1gを加えた。添加後、30分間加熱還
流した後、水酸化ナトリウム0.8gを水10mlとメタノール
10mlの混液に溶解した溶液を加え、さらに20分間加熱還
流した。室温まで放冷した後、濃硫酸1.5gを注意深く加
え、さらに30分間加熱還流した。室温まで放冷後、1Nの
炭酸ナトリウム水溶液を加え中性にした後減圧濃縮し
た。
mp 83.2 ° C PMR (CDCl 3 ) δppm 2.47 (s, 3H, CH 3 ) 2.69 (s, 6H, 2 × CH 3 ) 7.63 (t, 1H, pyridine-H 4 , J = 7.8Hz) Production Example 5 (Compound (34)) Diethyl malonic acid 1.5 g and 60% oily sodium hydride.
4 g was added to 30 ml of tetrahydrofuran, and 1 g of 4-chloro-6-o-chlorophenyl-2- (6-methyl-2-pyridyl) pyrimidine was added thereto. After addition, the mixture was heated under reflux for 30 minutes, 0.8 g of sodium hydroxide was added to 10 ml of water and methanol.
The solution dissolved in 10 ml of the mixed solution was added, and the mixture was heated under reflux for 20 minutes. After cooling to room temperature, 1.5 g of concentrated sulfuric acid was carefully added, and the mixture was heated under reflux for 30 minutes. After allowing to cool to room temperature, 1N aqueous sodium carbonate solution was added to neutralize, and the mixture was concentrated under reduced pressure.

残渣をシリカゲルカラムクロマトグラフィー(n−ヘ
キサン:アセトン=3:1)で処理し、4−o−クロロフ
ェニル−6−メチル−2−(6−メチル−2−ピリジ
ル)ピリミジン1.42gを得た。
The residue was treated with silica gel column chromatography (n-hexane: acetone = 3: 1) to obtain 1.42 g of 4-o-chlorophenyl-6-methyl-2- (6-methyl-2-pyridyl) pyrimidine.

m.p. 90.8℃ PMR(CDCl3)δppm: 2.70(s,6H,−CH ×2) 8.31(d,1H、ピリジン−H3、J=7.8Hz) 製造例6 (化合物(1)) 6−メチル−2−ピコリンアミジン塩酸塩1.5gをメタ
ノール50mlに溶解し、これに28%ナトリウムメトキシド
メタノール溶液2.2gと3−ジメチルアミノ−1−フェニ
ル−2−ブテン−1−オン1.7gを加え、2時間加熱還流
した。
mp 90.8 ° C PMR (CDCl 3 ) δppm: 2.70 (s, 6H, -CH 3 × 2) 8.31 (d, 1H, pyridine-H 3 , J = 7.8Hz) Production Example 6 (Compound (1)) 6-methyl 2-Picoline amidine hydrochloride (1.5 g) was dissolved in methanol (50 ml), and 28% sodium methoxide methanol solution (2.2 g) and 3-dimethylamino-1-phenyl-2-buten-1-one (1.7 g) were added. Heated to reflux for hours.

反応液を減圧濃縮した後、残渣をシリカゲルカラムク
ロマトグラフィー(n−ヘキサン:酢酸エチル=2:1)
で処理し、2−(6−メチル−2−ピリジル)−4−フ
ェニルピリミジン1.6gを得た。
The reaction solution was concentrated under reduced pressure, and the residue was subjected to silica gel column chromatography (n-hexane: ethyl acetate = 2: 1).
Treatment with 2- (6-methyl-2-pyridyl) -4-phenylpyrimidine (1.6 g) was obtained.

▲n24 D▼ 1.6329 PMR(CDCl3)δppm: 2.74(s,3H,−CH ) 8.43(d,1H,ピリジン−H3,J=7.2Hz) 8.92(d,1H,ピリミジン−H6,J=6.0Hz) 次にこの様な製造法によって製造できる本発明化合物
のいくつかについて第1表に示す。
▲ n 24 D ▼ 1.6329 PMR (CDCl 3 ) δppm: 2.74 (s, 3H, − CH 3 ) 8.43 (d, 1H, pyridine−H 3 , J = 7.2Hz) 8.92 (d, 1H, pyrimidine-H 6 , J = 6.0 Hz) Next, Table 1 shows some of the compounds of the present invention which can be produced by such a production method.

次にこれらの原料化合物の製造例を参考例として示
す。
Next, production examples of these raw material compounds will be shown as reference examples.

参考例1〔ピコリンアミジン誘導体〔IX〕(塩酸塩)の
製造〕 2−シアノ−6−メチルピリジン30gをメタノール300
mlに溶解し、28%ナトリウムメトキシドメタノール溶液
14.7gを加え室温で3時間放置した。反応液に酢酸4.6g
を加え、減圧濃縮し、得られた残渣にエーテル300mlお
よび水100mlを加え分液し、エーテル層を無水硫酸マグ
ネシウムで乾燥した後、減圧濃縮してメチル6−メチル
−2−ピコリンイミデートを得た。次いでこれにエタノ
ール200mlを加え、さらに塩化アンモニウム13.6gを水50
mlに溶解した溶液を加えて30分間加熱還流した。反応液
を充分に減圧濃縮し、得られた結晶状残渣をアセトンで
洗浄して6−メチル−2−ピコリンアミジン塩酸塩37g
を得た。
Reference Example 1 [Production of picoline amidine derivative [IX] (hydrochloride)] 2-cyano-6-methylpyridine (30 g) in methanol (300)
28% sodium methoxide in methanol solution
14.7 g was added and left at room temperature for 3 hours. 4.6 g acetic acid in the reaction solution
Was added and concentrated under reduced pressure. To the obtained residue, 300 ml of ether and 100 ml of water were added for liquid separation, the ether layer was dried over anhydrous magnesium sulfate, and then concentrated under reduced pressure to obtain methyl 6-methyl-2-picoline imidate. It was Next, add 200 ml of ethanol to this, and add 13.6 g of ammonium chloride to 50 parts of water.
A solution dissolved in ml was added and the mixture was heated under reflux for 30 minutes. The reaction solution was sufficiently concentrated under reduced pressure, and the obtained crystalline residue was washed with acetone to give 6-methyl-2-picoline amidine hydrochloride 37 g.
I got

m.p. 188.0℃ 次にこの様な製造法によって製造される一般式〔IX〕
で示されるピコリンアミジン誘導体およびその塩のいく
つかを第2表に示す。
mp 188.0 ℃ Next, a general formula [IX] produced by such a production method
Table 2 shows some of the picoline amidine derivatives represented by and some of their salts.

参考例2 〔ヒドロキシピリミジン誘導体〔XV〕の製
造〕 6−メチル−2−ピコリンアミジン塩酸塩5gをメタノ
ール50mlに加え、これに28%ナトリウムメトキシドメタ
ノール溶液6.8gおよび2,4−ジメチルベンゾイル酢酸エ
チル6.75gを加えて1時間加熱還流した。放冷後、反応
液に酢酸を加え中性にし、減圧濃縮した。得られた残渣
を水で洗浄し次いでヘキサンで洗浄して6−(2,4−ジ
メチルフェニル)−4−ヒドロキシ−2−(6−メチル
−2−ピリジル)ピリミジン6.9gを得た。
Reference Example 2 [Production of hydroxypyrimidine derivative [XV]] 6 g of 6-methyl-2-picoline amidine hydrochloride was added to 50 ml of methanol, and 6.8 g of 28% sodium methoxide methanol solution and ethyl 2,4-dimethylbenzoyl acetate were added thereto. 6.75 g was added and the mixture was heated under reflux for 1 hr. After allowing to cool, acetic acid was added to the reaction solution to make it neutral and concentrated under reduced pressure. The obtained residue was washed with water and then hexane to obtain 6.9 g of 6- (2,4-dimethylphenyl) -4-hydroxy-2- (6-methyl-2-pyridyl) pyrimidine.

m.p. 145.6℃ PMR(CDCl3)δppm 2.34(s,3H,CH3) 2.48(s,3H,CH3) 2.58(s,3H,CH3) 6.49(s,1H,ピリミジン−H5) 7.66(t,1H,ピリジン−H4,J=7.2Hz) 8.19(d,1H,ピリジン−H3,J=7.2Hz) 次にこの様な製造法によって製造できる一般式〔XV〕
で示されるヒドロキシピリミジン誘導体のいくつかにつ
いて第3表に示す。
mp 145.6 ℃ PMR (CDCl 3 ) δppm 2.34 (s, 3H, CH 3 ) 2.48 (s, 3H, CH 3 ) 2.58 (s, 3H, CH 3 ) 6.49 (s, 1H, pyrimidine-H 5 ) 7.66 (t , 1H, pyridine-H 4 , J = 7.2Hz) 8.19 (d, 1H, pyridine-H 3 , J = 7.2Hz) Next, a general formula [XV] that can be produced by such a production method
Some of the hydroxypyrimidine derivatives represented by are shown in Table 3.

参考例3 〔ハロピリミジン誘導体〔III〕の製造〕 6−(2,4−ジメチルフェニル)−4−ヒドロキシ−
2−(6−メチル−2−ピリジル)ピリミジン5gにトル
エン100mlおよびオキシ塩化リン5gを加え、1時間加熱
還流した。放冷後、炭酸ナトリウム水溶液で中和し、分
液した。トルエン層を水洗し、無水硫酸ナトリウムで乾
燥した後、減圧濃縮して、4−クロロ−6−(2,4−ジ
メチルフェニル)−2−(6−メチル−2−ピリジル)
ピリミジン4.8gを得た。
Reference Example 3 [Production of halopyrimidine derivative [III]] 6- (2,4-dimethylphenyl) -4-hydroxy-
To 5 g of 2- (6-methyl-2-pyridyl) pyrimidine, 100 ml of toluene and 5 g of phosphorus oxychloride were added, and the mixture was heated under reflux for 1 hour. After allowing to cool, it was neutralized with an aqueous sodium carbonate solution and separated. The toluene layer was washed with water, dried over anhydrous sodium sulfate and then concentrated under reduced pressure to give 4-chloro-6- (2,4-dimethylphenyl) -2- (6-methyl-2-pyridyl).
4.8 g of pyrimidine was obtained.

m.p. 127.2℃ PMR(CDCl3)δppm 2.35(s,3H,CH3) 2.47(s,3H,CH3) 2.69(s,3H,CH3) 7.66(t,1H,ピリジン−H4,J=7.2Hz) 8.26(d,1H,ピリジン−H3,J=7.2Hz) 次にこの様な製造法によって製造できる一般式〔II
I〕で示されるハロピリミジン誘導体のいくつかについ
て第4表に示す。
mp 127.2 ℃ PMR (CDCl 3) δppm 2.35 (s, 3H, CH 3) 2.47 (s, 3H, CH 3) 2.69 (s, 3H, CH 3) 7.66 (t, 1H, pyridine -H 4, J = 7.2 Hz) 8.26 (d, 1H, pyridine-H 3 , J = 7.2Hz) Next, a general formula [II
Some of the halopyrimidine derivatives represented by [I] are shown in Table 4.

次に製剤例を示す。なお本発明化合物は第1表の化合
物番号で示し、部は重量部である。
Formulation examples are shown below. The compounds of the present invention are shown by the compound numbers in Table 1, and parts are parts by weight.

製剤例1 本発明化合物(1)〜(50)各々50部、リグニンスル
ホン酸カルシウム3部、ラウリル硫酸ナトリウム2部お
よび合成含水酸化珪素45部をよく粉砕混合して本発明化
合物各々の水和剤を得る。
Formulation Example 1 50 parts each of the compounds (1) to (50) of the present invention, 3 parts of calcium lignin sulfonate, 2 parts of sodium lauryl sulfate and 45 parts of synthetic hydrous silicon oxide are well pulverized and mixed, and a wettable powder for each of the compounds of the present invention To get

製剤例2 本発明化合物(1)〜(50)各々25部、ポリオキシエ
チレンソルビタンモノオレエート3部CMC3部および水69
部を混合し、有効成分の粒度が5ミクロン以下になるま
で湿式粉砕して本発明化合物各々の懸濁剤を得る。
Formulation Example 2 25 parts each of the compounds (1) to (50) of the present invention, 3 parts polyoxyethylene sorbitan monooleate CMC 3 parts and water 69
Of the active ingredient are mixed and wet-pulverized until the particle size of the active ingredient becomes 5 μm or less to obtain a suspension of each compound of the present invention.

製剤例3 本発明化合物(1)〜(50)各々2部、カオリンクレ
ー88部およびタルク10部をよく粉砕混合して本発明化合
物各々の粉剤を得る。
Formulation Example 3 2 parts each of the compounds (1) to (50) of the present invention, 88 parts of kaolin clay and 10 parts of talc are well pulverized and mixed to obtain a powder of each of the compounds of the present invention.

製剤例4 本発明化合物(1)〜(50)各々20部、ポリオキシエ
チレンスチリルフェニルエーテル14部、ドデシルベンゼ
ンスルホン酸カルシウム6部、およびキシレン60部をよ
く混合して本発明化合物各々の乳剤を得る。
Formulation Example 4 20 parts each of the compounds (1) to (50) of the present invention, 14 parts of polyoxyethylene styryl phenyl ether, 6 parts of calcium dodecylbenzene sulfonate, and 60 parts of xylene were mixed well to form an emulsion of each of the compounds of the present invention. obtain.

製剤例5 本発明化合物(1)〜(50)各々2部、合成含水酸化
珪素1部、リグニンスルホン酸カルシウム2部、ベント
ナイト30部およびカオリンクレー65部をよく粉砕混合
し、水を加えてよく練り合わせた後、造粒乾燥して本発
明化合物各々の粒剤を得る。
Formulation Example 5 2 parts of each of the compounds (1) to (50) of the present invention, 1 part of synthetic hydrous silicon oxide, 2 parts of calcium lignin sulfonate, 30 parts of bentonite and 65 parts of kaolin clay are well pulverized and mixed, and water may be added. After kneading, the mixture is granulated and dried to obtain granules of the compounds of the present invention.

次に、本発明化合物が殺菌剤として有用であることを
試験例で示す。なお、本発明化合物は第1表の化合物番
号で示し、比較対照に用いた化合物は第5表の化合物記
号で示す。
Next, Test Examples show that the compounds of the present invention are useful as fungicides. The compounds of the present invention are shown by the compound numbers in Table 1, and the compounds used for comparison and control are shown by the compound symbols in Table 5.

また防除効力は、調査時の供試植物の発病状態すなわ
ち葉、茎等の菌叢、病斑の程度を肉眼観察し、菌叢、病
斑が全く認められなければ「5」、10%程度認められれ
ば「4」、30%程度認められれば「3」、50%程度認め
られれば「2」、70%程度認められれば「1」、それ以
上で化合物を供試していない場合の発病状態と差が認め
られなければ「0」として、6段階に評価し、それぞれ
5,4,3,2,1,0でしめす。
Moreover, the control efficacy is "5", about 10% if the disease state of the test plant at the time of the survey, that is, the flora of leaves, stems, etc. "4" if found, "3" if found to be about 30%, "2" if found to be about 50%, "1" if found to be about 70%, and the disease state when the compound is tested no further. If the difference is not recognized, it is evaluated as “0” in 6 levels, and
5,4,3,2,1,0.

試験例1 イネいもち病防除試験(予防効果) プラスチックポットに砂壌土を詰め、イネ(近畿33
号)を播種し、温室内で20日間育成した。イネの幼苗
に、製剤例2に準じて懸濁剤にした供試薬剤を水で希釈
して所定濃度にし、それを葉面に充分付着するように茎
葉散布した。散布後、植物を風乾し、いもち病菌の胞子
懸濁液を噴霧、接種した。接種後、28℃、暗黒、多湿下
で4日間置いた後、防除効力を調査した。その結果を第
6表にしめす。
Test Example 1 Rice Blast Control Test (Preventive Effect) A plastic pot was filled with sandy loam, and rice (Kinki 33
No.) was sowed and grown in a greenhouse for 20 days. The seedlings of rice were diluted with water to give a prescribed concentration of the test reagent prepared as a suspension according to Formulation Example 2, and then sprayed on foliage so that it was sufficiently adhered to the leaf surface. After spraying, the plants were air-dried, and a spore suspension of blast fungus was sprayed and inoculated. After the inoculation, the pest control efficacy was investigated after leaving for 4 days at 28 ° C. in darkness and high humidity. The results are shown in Table 6.

試験例2 イネいもち病防除試験(治療効果) プラスチックポットに砂壌土を詰め、イネ(近畿33
号)を播種し、温室内で20日間育成した。イネの幼苗
に、いもち病菌の胞子懸濁液を噴霧、接種した。接種
後、28℃、暗黒、多湿下で16時間置いた後、製剤例1に
準じて水和剤にした供試薬剤を水で希釈して所定濃度に
し、それを葉面に充分付着するように茎葉散布した。散
布後、28℃、暗黒、多湿下で3日間生育し、防除効力を
調査した。その結果を第7表にしめす。
Test Example 2 Rice blast control test (therapeutic effect) A plastic pot was filled with sandy loam, and rice (Kinki 33
No.) was sowed and grown in a greenhouse for 20 days. Rice seedlings were sprayed and inoculated with a spore suspension of the blast fungus. After inoculation, the specimen was left at 28 ° C. in the dark and in a humid environment for 16 hours, and then diluted with water to a predetermined concentration according to Formulation Example 1 so that it adhered sufficiently to the leaves. Foliage. After spraying, the plants were grown for 3 days at 28 ° C. in the dark and in a humid environment, and the control effect was examined. Table 7 shows the results.

試験例3 イネ紋枯病防除試験(予防効果) プラスチックポットに砂壌土を詰め、イネ(近畿33
号)を播種し、温室内で28日間育成した。イネの幼苗
に、製剤例4に準じて乳剤にした供試薬剤を水で希釈し
て所定濃度にし、それを葉面に充分付着するように茎葉
散布した。散布後、植物を風乾し紋枯病菌の含菌寒天懸
濁液を噴霧、接種した。接種後、28℃、暗黒、多湿下で
4日間置いた後、防除効力を調査した。その結果を第8
表にしめす。
Test Example 3 Rice crest disease control test (preventive effect) Sand loamy soil was filled in a plastic pot, and rice (Kinki 33
No.) was sowed and grown in a greenhouse for 28 days. A rice seedling was diluted with water to give a prescribed concentration of a reagent agent emulsified according to Formulation Example 4, and sprayed on foliage so that it was sufficiently adhered to the leaf surface. After spraying, the plants were air-dried, sprayed with a bacterial agar-containing suspension of sheath blight, and inoculated. After the inoculation, the pest control efficacy was investigated after leaving for 4 days at 28 ° C. in darkness and high humidity. The result is No. 8
Shown on the table.

試験例4 コムギ眼紋病防除試験(予防効果) プラスチックポットに砂壌土を詰め、コムギ(農林73
号)を播種し、温室内で10日間育成した、コムギの幼苗
に、製剤例1に準じて水和剤にした供試薬剤を水で希釈
して所定濃度にし、それを葉面に充分付着するように茎
葉散布した。散布後、植物を風乾しMBC耐性眼紋病菌の
胞子懸濁液を噴霧、接種した。接種後、15℃、暗黒、多
湿下で4日間置いた後、さらに照明、多湿下で4日間生
育し、防除効力を調査した。その結果を第9表にしめ
す。
Test Example 4 Wheat eye blight control test (preventive effect) A plastic pot was filled with sandy loam and wheat (Agriculture 73
No.) was sowed and grown in a greenhouse for 10 days, to a wheat seedling diluted with water into a predetermined concentration by diluting the reagent solution made into a wettable powder according to Formulation Example 1, and sufficiently adhering it to the leaf surface. The foliage was sprayed so that After spraying, the plants were air-dried and sprayed with a spore suspension of MBC-resistant eye-splitting bacteria to inoculate. After inoculation, the mixture was allowed to stand for 4 days at 15 ° C. in the dark and high humidity, and then further grown under illumination and high humidity for 4 days to examine the control efficacy. Table 9 shows the results.

試験例5 コムギ眼紋病防除試験(治療効果) プラスチックポットに砂壌土を詰め、コムギ(農林73
号)を播種し、温室内で8日間育成した。コムギの幼苗
に、葉枯病菌の胞子懸濁液を噴霧、接種した。接種後、
15℃、暗黒、多湿下で3日間置き、さらに照明下で4日
間生育した後、製剤例4に準じて乳剤にした供試薬剤を
水で希釈して所定濃度にし、それを葉面に充分付着する
ように茎葉散布した。散布後、15℃照明下で11日間生育
させて、防除効力を調査した。その結果を第10表にしめ
す。
Test Example 5 Wheat eye blight control test (therapeutic effect) Sand loam was filled in a plastic pot, and wheat (Agriculture 73
No.) was sowed and grown in a greenhouse for 8 days. Wheat seedlings were sprayed and inoculated with a spore suspension of leaf blight fungus. After inoculation,
After leaving for 3 days at 15 ° C. in the dark and high humidity, and further growing for 4 days under illumination, the reagent agent made into an emulsion according to Formulation Example 4 is diluted with water to a predetermined concentration, which is sufficiently applied to the leaf surface. The foliage was sprayed to adhere. After spraying, the seedlings were allowed to grow for 11 days under illumination at 15 ° C, and the control efficacy was investigated. The results are shown in Table 10.

試験例6 リンゴ黒星病防除試験(予防効果) プラスチックポットに砂壌土を詰め、リンゴの種子を
播種し、温室内で20日間育成した。第4〜5本葉が展開
したリンゴの幼苗に、製剤例2を準じて懸濁剤にした供
試薬剤を水で希釈して所定濃度にし、それを葉面に充分
付着するように茎葉散布した。散布後、リンゴ黒星病菌
の胞子懸濁液を噴霧、接種した。接種後、15℃、多湿下
で4日置いた後、さらに照明下で15日間生育し、防除効
力を調査した。その結果を第11表にしめす。
Test Example 6 Apple Scab Disease Control Test (Preventive Effect) A plastic pot was filled with sandy loam soil, seeded with apples, and cultivated in a greenhouse for 20 days. Apple seedlings with 4th to 5th true leaves developed were diluted with water to give a prescribed concentration of the test agent in the form of a suspension according to Formulation Example 2, and sprayed with foliage so that it was sufficiently adhered to the leaf surface. did. After spraying, a spore suspension of apple scab was sprayed and inoculated. After inoculation, the mixture was allowed to stand at 15 ° C. and high humidity for 4 days, and then grown under illumination for 15 days, and the control efficacy was investigated. The results are shown in Table 11.

試験例7 キュウリ炭そ病防除試験(予防効果) プラスチックポットに砂壌土を詰め、キュウリ(相模
半白)を播種し、温室内で14日間育成した。子葉が展開
したキュウリの幼苗に、製剤例1に準じて水和剤にした
供試薬剤を水で希釈して所定濃度にし、それを葉面に充
分付着するように茎葉散布した。散布後、キュウリ炭そ
病菌の胞子懸濁液を噴霧、接種した。接種後、23℃、多
湿下で1日置いた後、さらに照明下で4日間生育し、防
除効力を調査した。その結果を第12表にしめす。
Test Example 7 Cucumber Anthracnose Control Test (Preventive Effect) A plastic pot was filled with sandy loam soil, seeded with cucumber (Sagamihanjiro), and grown in a greenhouse for 14 days. Cucumber seedlings with cotyledons spread were diluted with water to give a prescribed concentration of the reagent solution made into a wettable powder according to Formulation Example 1, and sprayed on foliage so that it was sufficiently adhered to the leaf surface. After spraying, a spore suspension of anthrax of cucumber was sprayed and inoculated. After inoculation, the plate was left at 23 ° C. and high humidity for 1 day, and then grown under illumination for 4 days, and the control efficacy was investigated. The results are shown in Table 12.

試験例8 コムギうどんこ病防除試験(治療効果) プラスチックポットに砂壌土を詰め、コムギ(農林73
号)を播種し、温室内で10日間育成した。コムギの幼苗
にうどんこ病菌を接種した。接種後23℃で3日間生育し
た後、製剤例4に準じて乳剤にした供試薬剤を水で希釈
して所定濃度にし、それを葉面に充分付着するように茎
葉散布した。散布後、23℃、温室内で7日間生育し、防
除効力を調査した。その結果を第13表にしめす。
Test Example 8 Wheat powdery mildew control test (therapeutic effect) A plastic pot was filled with sandy loam, and wheat (Agriculture 73
No.) and bred in a greenhouse for 10 days. Young seedlings of wheat were inoculated with powdery mildew fungi. After inoculation, the mixture was grown at 23 ° C. for 3 days, and then the reagent agent emulsified according to Formulation Example 4 was diluted with water to a predetermined concentration, and the leaves were sprayed so as to adhere sufficiently to the leaf surface. After spraying, the plants were grown at 23 ° C. in a greenhouse for 7 days, and the control efficacy was investigated. Table 13 shows the results.

試験例9 キュウリ灰色かび病防除試験(予防効果) プラスチックポットに砂壌土を詰め、キュウリ(相模
半白)を播種し、温室内で14日間育成した。子葉が展開
したキュウリの幼苗に製剤例1に準じて水和剤にした供
試薬剤を水で希釈して所定濃度にし、それを葉面に充分
付着するように茎葉散布した。散布後、植物を風乾し、
ベンズイミダゾール・チオファネールメチル系殺菌剤耐
性キュウリ灰色かび病菌の菌糸を接種した。接種後、15
℃、暗黒、多湿下で3日間生育し、防除効力を調査し
た。その結果を第14表にしめす。
Test Example 9 Cucumber Gray Mold Control Test (Preventive Effect) A plastic pot was filled with sandy loam soil, seeded with cucumber (Sagamihanjiro), and grown in a greenhouse for 14 days. Cucumber seedlings with cotyledons developed were diluted with water to give a prescribed concentration of the reagent solution made into a wettable powder according to Formulation Example 1, and then sprayed on foliage so that it was sufficiently adhered to the leaf surface. After spraying, air dry the plants,
The mycelium of the cucumber gray mold fungus resistant to the benzimidazole / thiophanermethyl fungicides was inoculated. 15 after vaccination
After growing for 3 days at ℃, darkness and high humidity, the control efficacy was investigated. The results are shown in Table 14.

試験例10 コムギ赤さび病防除試験(治療効果) プラスチックポットに砂壌土を詰め、コムギ(農林73
号)を播種し、温室内で8日間育成した。コムギの幼苗
に、赤さび病菌の胞子を散粉、接種した。接種後、23
℃、暗黒、多湿下で1日置いた後、製剤例2に準じて懸
濁剤にした供試薬剤を水で希釈して所定濃度にし、それ
を葉面に充分付着するように茎葉散布した。散布後、23
℃照明下で7日間生育させて、防除効力を調査した。そ
の結果を第15表にしめす。
Test Example 10 Wheat leaf rust control test (therapeutic effect) Sand loam soil was filled in a plastic pot, and wheat (Agriculture 73
No.) was sowed and grown in a greenhouse for 8 days. Wheat seedlings were dusted and inoculated with spores of Fusarium head rust. 23 after vaccination
After left at ℃, darkness, and high humidity for 1 day, the reagent solution made into a suspension according to Formulation Example 2 was diluted with water to a predetermined concentration, and the foliage was sprayed so that it adhered sufficiently to the leaf surface. . 23 after spraying
The plants were grown for 7 days under ℃ illumination, and the control efficacy was investigated. The results are shown in Table 15.

<発明の効果> 本発明化合物は、種々の植物病害菌による植物病害に
対して優れた効果を有することから植物病害防除剤の有
効成分として種々の用途に供しうる。
<Effects of the Invention> The compound of the present invention has excellent effects on plant diseases caused by various plant pathogens, and thus can be used for various purposes as an active ingredient of a plant disease controlling agent.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 山下 典久 兵庫県宝塚市高司4丁目2番1号 住友 化学工業株式会社内 (72)発明者 実光 穣 兵庫県宝塚市高司4丁目2番1号 住友 化学工業株式会社内 (72)発明者 井上 悟 兵庫県宝塚市高司4丁目2番1号 住友 化学工業株式会社内 (56)参考文献 特開 昭64−83(JP,A) 特開 昭62−169778(JP,A) 特開 昭63−99068(JP,A) ─────────────────────────────────────────────────── ─── Continuation of front page (72) Norihisa Yamashita 4-2-1 Takashi Takarazuka-shi, Hyogo Sumitomo Chemical Co., Ltd. (72) Inventor Minoru Minoru 4-2-1 Takashi Takarazuka-shi, Hyogo Within Sumitomo Chemical Co., Ltd. (72) Inventor Satoru Inoue 4-2-1 Takashi, Takarazuka-shi, Hyogo Sumitomo Chemical Co., Ltd. (56) References JP-A-64-83 (JP, A) JP-A-62 -169778 (JP, A) JP-A-63-99068 (JP, A)

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】一般式 〔式中、R1は低級アルキル基を表わし、R2およびR3は同
一または相異なり水素原子またはメチル基を表わし、n
は0〜5の整数を表わし、R4は同一または相異なり、低
級アルキル基、低級アルコキシ基、低級ハロアルキル基
またはハロゲン原子を表わし、R5は水素原子または低級
アルキル基を表わし、R6は水素原子、低級アルキル基、
低級アルコキシ基、低級アルケニルオキシ基または低級
アルキルチオ基を表わす。〕 で示されるピリジルピリミジン誘導体またはその塩。
1. A general formula [In the formula, R 1 represents a lower alkyl group, R 2 and R 3 are the same or different and represent a hydrogen atom or a methyl group, and n
Represents an integer of 0 to 5, R 4 is the same or different and represents a lower alkyl group, a lower alkoxy group, a lower haloalkyl group or a halogen atom, R 5 represents a hydrogen atom or a lower alkyl group, and R 6 represents hydrogen. Atom, lower alkyl group,
It represents a lower alkoxy group, a lower alkenyloxy group or a lower alkylthio group. ] The pyridyl pyrimidine derivative shown by these, or its salt.
【請求項2】一般式 〔式中、R1は低級アルキル基を表わし、R2およびR3は同
一または相異なり水素原子またはメチル基を表わし、n
は0〜5の整数を表わし、R4は同一または相異なり、低
級アルキル基、低級アルコキシ基、低級ハロアルキル基
またはハロゲン原子を表わし、R5は水素原子または低級
アルキル基を表わし、R6は水素原子、低級アルキル基、
低級アルコキシ基、低級アルケニルオキシ基または低級
アルキルチオ基を表わす。〕 で示されるピリジルピリミジン誘導体またはその塩を有
効成分として含有することを特徴とする植物病害防除
剤。
2. General formula [In the formula, R 1 represents a lower alkyl group, R 2 and R 3 are the same or different and represent a hydrogen atom or a methyl group, and n
Represents an integer of 0 to 5, R 4 is the same or different and represents a lower alkyl group, a lower alkoxy group, a lower haloalkyl group or a halogen atom, R 5 represents a hydrogen atom or a lower alkyl group, and R 6 represents hydrogen. Atom, lower alkyl group,
It represents a lower alkoxy group, a lower alkenyloxy group or a lower alkylthio group. ] A plant disease controlling agent comprising a pyridylpyrimidine derivative represented by: or a salt thereof as an active ingredient.
JP62299044A 1986-12-03 1987-11-26 Pyridylpyrimidine derivative and plant disease controlling agent containing the same Expired - Lifetime JP2517992B2 (en)

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JP61-288350 1986-12-03
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WO2007110337A1 (en) * 2006-03-29 2007-10-04 F. Hoffmann-La Roche Ag Pyridine and pyrimidine derivatives as mglur2 antagonists
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