JPS59212480A - Pyridazine derivative and herbicide - Google Patents

Pyridazine derivative and herbicide

Info

Publication number
JPS59212480A
JPS59212480A JP8497683A JP8497683A JPS59212480A JP S59212480 A JPS59212480 A JP S59212480A JP 8497683 A JP8497683 A JP 8497683A JP 8497683 A JP8497683 A JP 8497683A JP S59212480 A JPS59212480 A JP S59212480A
Authority
JP
Japan
Prior art keywords
group
lower alkyl
formula
alkyl group
compound
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8497683A
Other languages
Japanese (ja)
Inventor
Minoru Kaeriyama
帰山 稔
Hisao Ishikawa
石川 尚雄
Hideo Hosaka
保坂 秀夫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Soda Co Ltd
Original Assignee
Nippon Soda Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nippon Soda Co Ltd filed Critical Nippon Soda Co Ltd
Priority to JP8497683A priority Critical patent/JPS59212480A/en
Publication of JPS59212480A publication Critical patent/JPS59212480A/en
Pending legal-status Critical Current

Links

Abstract

NEW MATERIAL:The compound of formula I (R1 is H or lower alkyl; R2 is lower alkyl; R3 is lower alkyl or lower alkylthio; R4 is H, lower alkoxy, halogen, lower alkylthio, etc.; R5 is phenyl, halogen-substituted phenyl, phenoxyphenyl or thienyl). EXAMPLE:3-Dimethylamino-4-methyl-6-phenylpyridazine. USE:A selective herbicide. It has far excellent herbicidal activity compared with known compounds, and specifically low toxicity to corn and rice plant. It can be prepared economically in an industrial scale, is easily applicable, and has sure effect. It has little toxicity. PREPARATION:The compound of formula I can be prepared by reacting the compound of formula II (Y is H or halogen) with the alkylamine of formula IIIin an organic solvent such as methanol, at 100-150 deg.C, if necessary under high pressure.

Description

【発明の詳細な説明】 本発明は新規な化合物、製造方法及びその使用に関し、
詳しくは (式中、R1は水素原子又は低級アルキル基を。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to novel compounds, methods of preparation and uses thereof;
Specifically, (in the formula, R1 is a hydrogen atom or a lower alkyl group.

ルは低級アルキル基な、R8は低級アルキル基又は低級
アルキルチオ基を、]1..は水素原子、ハロゲン原子
、低級アルコキン基、低級アルキルチオ基又はモノもし
くはジ低級アルキルアミノ基を、瓜はフェニル基、ハロ
ゲン原子で置換されたフェニル基、ハロゲン原子で置換
されたフェノキンフェニル基又はチェニル基を示す。) で表わされる化合物、その製造方法及び該化合物類を有
効成分として含有する選択的除草剤(1関する。
R is a lower alkyl group, R8 is a lower alkyl group or a lower alkylthio group, ]1. .. represents a hydrogen atom, a halogen atom, a lower alkoxy group, a lower alkylthio group, or a mono- or di-lower alkylamino group, and a melon represents a phenyl group, a phenyl group substituted with a halogen atom, a phenyl group substituted with a halogen atom, or a phenyl group substituted with a halogen atom. Indicates the group. ), a method for producing the same, and a selective herbicide containing the compounds as active ingredients (Relating to 1).

本発明の目的は、該化合物類を工業的に有利に得、簡使
(1使用出来しかも効果の確実な除草剤を提供するこ七
である。
The object of the present invention is to obtain these compounds industrially advantageously and to provide a herbicide that is easy to use and has reliable effects.

本発明者らは、多数のピリダジン誘導体を合成し」1記
目的に適合するものを検削したところ、前記一般式(I
)で表わされる化合物が優れた除草作用を示し、し、か
も人畜魚貝類等に対する毒性も殆どないことを県い出し
、¥(=生物学的、物理化学的1iJl究を重ね、本発
明を完成した。
The present inventors synthesized a large number of pyridazine derivatives and examined those suitable for the purpose described in 1.
) showed excellent herbicidal activity and was also virtually nontoxic to humans, animals, fish, and shellfish, etc., and after repeated biological and physicochemical research, the present invention was completed. did.

本発明化合物(−類似のフェニルピリダジン銹導体が植
物生育抑制作用、除草作用を有することは、Pe5ti
cides  5upple、 vol、 ll’[o
f EQS  E、Auer、A。
The compound of the present invention (-similar phenylpyridazine rust conductor has plant growth inhibiting effect and herbicidal effect)
cides 5upple, vol, ll'[o
f EQS E, Auer, A.

pisl<us  P、 680〜685.特開昭49
−48837号、80245号、50−35339号、
57− t4o769号等で知られているが1本発明化
合物は公知化合物に比し、その除草活性がはるかに優れ
ているものである。
pisl<us P, 680-685. Unexamined Japanese Patent Publication 1973
-48837, 80245, 50-35339,
No. 57-t4o769, etc., but the compound of the present invention has far superior herbicidal activity compared to known compounds.

又更(二作物(二対する安全性面ではトウモロコシ、イ
ネ(二対し特異的(二作用が弱いことを特徴としている
Moreover, in terms of safety against two crops (two crops), corn and rice (two crops) are specific (characterized by weak effects).

本発明化合物は、一般式 %式% (式中、Yは水素原子又はハロゲン117 子ヲ、IL
3及びR1は前記と同一の意味を示す。)で表わされる
化合物と、一般式 (式中、R1及び馬は前記と同一の意味を示す。)で表
わされるアルキルアミン類とを必要により加圧条件丁、
適当な有機溶媒中で加熱して反応させることにより、鴇
が水素原子、ハロゲン原子又は低級アルキルアミノ基で
ある本発明化合物を製造することができる。一般式@(
=おいてYがへロゲある本発明化合物が得られる。Yの
置換を意図しない時、反応温度は100〜150℃であ
るが170〜190℃にすること(二よりYの置換が生
じる。有機溶媒としてはメタノール、エタノール等極性
溶媒が用いられる。
The compound of the present invention has the general formula % (wherein, Y is a hydrogen atom or a halogen 117 atom, IL
3 and R1 have the same meanings as above. ) and an alkylamine represented by the general formula (in the formula, R1 and H have the same meanings as above), if necessary, under pressurized conditions.
By heating and reacting in an appropriate organic solvent, it is possible to produce the compound of the present invention in which the molecule is a hydrogen atom, a halogen atom, or a lower alkylamino group. General formula @(
A compound of the present invention in which Y is halogen is obtained. When substitution of Y is not intended, the reaction temperature is 100 to 150°C, but should be 170 to 190°C (substitution of Y occurs due to the second reason). As the organic solvent, a polar solvent such as methanol or ethanol is used.

R14が低級アルコキシ基又は低級アルキルチオ基であ
る本発明化合物は、一般式(IV)(式中、■・3、)
ち、I(、、l及び)11.は前記と同一の意味を示す
。) で表わされるR・4が塩素原子である本発明化合物1・
−””6 「:○や■  (、) (式中、桓′は低級アルコキシ基又は低級アルキルチオ
基を、Mはアルカリ金属原子又はアミンな示す。) で表わされる化合物を有機溶媒中で反応させることC二
より製造することができる。有機溶媒としてはR:Hそ
れ自身又はジメチルスルホキンド等の不活性溶媒が用い
られ、加熱還流上反応させる。
The compound of the present invention in which R14 is a lower alkoxy group or a lower alkylthio group has the general formula (IV) (in the formula, ■.3)
,I(,,l,and)11. has the same meaning as above. ) The compound 1 of the present invention in which R.4 is a chlorine atom
-""6 ": ○ or ■ (,) (In the formula, 桓′ represents a lower alkoxy group or a lower alkylthio group, and M represents an alkali metal atom or an amine.) A compound represented by the following is reacted in an organic solvent. It can be produced from C2.As the organic solvent, R:H itself or an inert solvent such as dimethylsulfokind is used, and the reaction is carried out under heating under reflux.

本発明化合物の構造は、IR、NMII、 、Δ4AS
Sスペクトル等の分析結果から決定した。
The structure of the compound of the present invention is IR, NMII, ,Δ4AS
It was determined from the analysis results such as S spectrum.

次C二実施例を挙げて本発明の製造方法(二ついて更C
二詳しく説明する。
The manufacturing method of the present invention will be described below with two examples.
2.Explain in detail.

参考例 3.5−0クロロ−4−)’f−ルー6−フエニルヒリ
タジン:原料化合物 DMF (無水) 500m1中に水素化ナトリウム(
油性、60%)25gをケン濁させ0℃(=冷却した中
(二攪拌下同温度でマロン酸ジエチル110 /Iを滴
丁した。水素の発生が認められなくなってから3.4.
5−トリクロロ−6−フェニルピリダジン80gを加え
徐々口加熱して40〜45℃(二2時間保った後、氷水
中(二あけて塩酸酸性にして酢酸エチルで抽出した。溶
媒留去後、残渣に酢酸200m1!及び47%島化水累
酸300tn1.を加え攪拌F(二1時間加熱還流した
後、氷水中にあけ析出した結晶を口取し充分乾燥してか
らベンゼン−リグロインより再結晶してしi約物40.
Fを得た。m、p、 156〜7℃実施例1 3−ジメチルアミノ−4−メチル−6−フェニルピリダ
ジン:化合物1 オートクレーブ中(二3−クロル−4−メチル−6−フ
ェニルピリダジン5g、ジメヅールアミン50%水溶液
11P及びエタノール50 mlを仕込み150℃(二
2時間攪拌ド(二加熱した。室温まで冷却後、溶媒及び
過剰の5ンメチルアミンを留去し残渣を2N−塩酸(ユ
溶かし水層を内1酸エチルで洗浄後、2N−カセイソー
ダ水溶液でアルカリ性にし酢酸エチルを用いて常法の抽
出操作を行い目的物4.6gを得た。
Reference Example 3.5-0chloro-4-)'f-ru-6-phenylhyritazine: Sodium hydride (
25 g of oil-based, 60%) was suspended at 0°C (= cooled) and 110/I of diethyl malonate was added thereto under stirring at the same temperature. After no hydrogen generation was observed, 3.4.
80 g of 5-trichloro-6-phenylpyridazine was added, and the mixture was gradually heated to 40-45°C (kept for 22 hours, then poured into ice water), acidified with hydrochloric acid, and extracted with ethyl acetate. After evaporation of the solvent, the residue was Add 200 ml of acetic acid and 300 tn of 47% hydrochloric acid to the mixture and stir with F (after heating and refluxing for 21 hours, pour into ice water, take the precipitated crystals, dry thoroughly, and recrystallize from benzene-ligroin. 40.
I got an F. m, p, 156-7°C Example 1 3-dimethylamino-4-methyl-6-phenylpyridazine: Compound 1 In autoclave (23-chloro-4-methyl-6-phenylpyridazine 5g, dimedulamine 50% aqueous solution 11P and 50 ml of ethanol and heated at 150°C (with stirring for 22 hours). After cooling to room temperature, the solvent and excess 5-methylamine were distilled off, the residue was dissolved in 2N-hydrochloric acid, and the aqueous layer was diluted with ethyl acetate. After washing, the mixture was made alkaline with a 2N aqueous caustic soda solution and extracted using ethyl acetate in a conventional manner to obtain 4.6 g of the desired product.

nn1.6285 同様(ユして化合物番号16〜18を合成した。nn1.6285 Compounds Nos. 16 to 18 were synthesized in the same manner.

実施例2 4−メチル−3−メチルアミノ−6−フェニルピリダジ
ン:化合物3 実施例1のジメチルアミンをメチルアミン水溶液に変え
る以外は実施例1と同様(ニして目的物4.1gを得た
。 m、p、 113〜4℃ 同様にアミンの種類を変えて化合物番号2,8.13.
15を合成した。
Example 2 4-Methyl-3-methylamino-6-phenylpyridazine: Compound 3 Same as Example 1 except that dimethylamine in Example 1 was changed to a methylamine aqueous solution (4.1 g of the target product was obtained) m, p, 113-4°C Similarly, compound numbers 2, 8, and 13 were obtained by changing the type of amine.
15 was synthesized.

実施例3 5−クロロ−3−ジメチルアミノ−4−メチル−6−ソ
エニルピリダジン;化合物4 オートクレーブ(−3,5−ジクロロ−4−メチル−6
−フェニルピリダジン10g、50%ジメチルアミン水
溶液20g及びエタノール59 m、lを仕込み攪拌下
に140〜150℃に4時間加熱した。室温まで放冷後
、過剰のアミンをエタノールと共に留去し残渣に水を加
え酢酸エチルで抽出して油状の目的物8gを得たOnも
91.6275 またt記反応で温度を170〜190℃にすることによ
り3.5−ビス(ジメチルアミノ)−4−メチル−6−
フェニルピリダジン化合物6が得られた。
Example 3 5-chloro-3-dimethylamino-4-methyl-6-soenylpyridazine; Compound 4 Autoclave (-3,5-dichloro-4-methyl-6
- 10 g of phenylpyridazine, 20 g of 50% dimethylamine aqueous solution and 59 m, 1 of ethanol were charged and heated to 140 to 150°C for 4 hours with stirring. After cooling to room temperature, excess amine was distilled off together with ethanol, water was added to the residue, and extraction with ethyl acetate yielded 8 g of the target product in the form of an oil. 3.5-bis(dimethylamino)-4-methyl-6-
Phenylpyridazine compound 6 was obtained.

n11.6168 実施例4 5−クロtff −4−/ チル−3−/”)ルアミノ
−6−フェニルピリダジン:化合物14 実施例3でジメチルアミンをメチルアミンC二液える以
外は同様にして目的物7.8J9が得られた。
n11.6168 Example 4 5-chlorotff-4-/thyl-3-/'') ruamino-6-phenylpyridazine: Compound 14 The desired product was prepared in the same manner as in Example 3, except that dimethylamine and methylamine C were added as two liquids. 7.8J9 was obtained.

m、p、123〜7℃ 実施例5 3−ジメチルアミノ−5−メトキi/−4−メブールー
6−7rニルピリダジン;化合物5 メタノール10 ml l二金属ナトリウム0.2Jを
溶解させDMSO20tnl及び5−クロロ−3−ジメ
チルアミノ−4−メチル−6−フェニルピリダジン2I
を加え1時間加熱還流した。その復水(二あけて酢酸エ
チルを用いて常υ二の抽出操作を行い油状の目的物1.
5gを得た。n¥?1.6090 アルコールの種類を変える以外は同様(ニして化合物番
号7.11.12を合成した。
m, p, 123-7°C Example 5 3-dimethylamino-5-methoxyi/-4-meboulu-6-7r-nylpyridazine; Compound 5 10 ml methanol 0.2 J of dimetallic sodium was dissolved in DMSO 20 tnl and 5- Chloro-3-dimethylamino-4-methyl-6-phenylpyridazine 2I
was added and heated under reflux for 1 hour. The condensate (after 2 hours) is extracted with ethyl acetate to obtain an oily target product.
5g was obtained. n¥? 1.6090 Compound No. 7.11.12 was synthesized in the same manner except that the type of alcohol was changed.

実施例6 3−ジメブ・ルアミノ−5−メトキシ−4−メチルチオ
−6−フェニルピリダジン:化合物103.4.5−ト
リクロル−6−フェニルピリダジン20gをメタノール
100−m1i二溶かしトルエン100tnlを加え−
10〜−15℃で攪拌下15%メチルメルカプタンナト
リウム溶液40Iiを部上した。その後徐々に0℃まで
温度を上げ水中に注いで酢酸エチルで抽出操作を行い、
溶媒留去後残渣をリグロインで洗浄して4−メチルチオ
体の結晶12gが得られた。これを50%ジメチルアミ
ン水溶液40g、エタノール50fnilと供にオート
クレーブC二仕込み120℃で2時間加熱攪拌した後実
施例3と同様(二処理して3−ジメチルアミノ−4−メ
チルチオ体(化合物9)の粗結晶9.5.F (m、p
、 91〜100℃)を得た。このものを実施例5と同
様(ニナトリウムメチラートと反応させ得られた粗生成
物をシリカゲルカラムクロマト(溶媒ベンゼンlO:酢
酸エチル1)で精製して目本発明化合物は雑草の発芽前
又は発芽後(=処理する方法で高い活性を示すが、特に
発芽後の生育期に雑草の茎葉部に散布した場合、低薬量
で、特Cニアカザ、イヌビニ、タデ、ハコベ等の広葉雑
草に対し高い殺草効果を示し、作物では稲やトウモロコ
シ等に対して選択性を有し、稲(二おいては、はとんど
薬害を生ずることのない薬量  水田雑草を巾広く枯殺
するという作用を持ち、稲と雑草間において高いNt+
択性な有しているものである。
Example 6 3-dimeb-ruamino-5-methoxy-4-methylthio-6-phenylpyridazine: Compound 103. 20 g of 4.5-trichloro-6-phenylpyridazine was dissolved in 100 ml of methanol and 100 tnl of toluene was added.
15% sodium methyl mercaptan solution 40Ii was added to the mixture under stirring at 10 to -15°C. After that, the temperature was gradually raised to 0℃, poured into water, and extracted with ethyl acetate.
After the solvent was distilled off, the residue was washed with ligroin to obtain 12 g of 4-methylthio crystals. This was charged into an autoclave C with 40 g of a 50% dimethylamine aqueous solution and 50 fnil of ethanol, and heated and stirred at 120°C for 2 hours. Crude crystals of 9.5.F (m, p
, 91-100°C). This product was purified in the same manner as in Example 5 (the crude product obtained by reacting with disodium methylate was purified by silica gel column chromatography (solvent benzene lO:ethyl acetate 11)). (= shows high activity depending on the treatment method, but especially when sprayed on the stems and leaves of weeds during the growth period after germination, it is highly effective against broad-leaved weeds such as special C niakaza, dogweed, polygonum, and chickweed at a low dose) It has a herbicidal effect and is selective for crops such as rice and corn. and high Nt+ between rice and weeds.
It is something that is selective.

本発明除草剤は、前記一般式(I)で示される化合物の
1又は2以1−を有効成分として含有し、通常の農薬と
同様の形態を有する。即ち、有効成分化合物は一般(ユ
バ1当な1■を(1体と混合して水和剤、乳剤、わ剤等
の形(二製剤して使用される。固体担体としてはタルク
、ホワイトカーボン、ベントナイト、クレイ、ケイソウ
土等が埜げられ、液体t]ノ体トしては、水、アルコー
ル、ベンゼン、キシしIン、ケロシン、鉱油、シクロヘ
キサン、シクロヘキサン、ジメチルボルムアミド等が用
いられる。
The herbicide of the present invention contains one or two or more compounds represented by the general formula (I) as an active ingredient, and has the same form as a common agricultural chemical. That is, the active ingredient compound is generally used in the form of wettable powders, emulsions, powders, etc. by mixing 1 part of 1 part of the compound with 1 part of Yuba (1 part).The solid carrier is talc, white carbon, etc. , bentonite, clay, diatomaceous earth, etc., and water, alcohol, benzene, xylene, kerosene, mineral oil, cyclohexane, cyclohexane, dimethylbormamide, etc. are used as the liquid.

これらの製剤(−おいて均−且つ安定な形態をとるため
(=必要ならば界面活性剤を添加することもでとる。
In order to take a uniform and stable form in these preparations (= if necessary, a surfactant may be added.

本発明除草剤における有効成分濃度は前述した製剤の形
により種々の濃度(=変化するものであるが、例えば、
水和剤においては5〜70%、好ましくは10〜50%
、乳剤(=おいては5〜40%、好ましくは10〜30
%、粒剤(−おいては0.5〜30%、好ましくは1〜
10%の′a度が用いられる。
The concentration of the active ingredient in the herbicide of the present invention varies depending on the form of the formulation mentioned above, but for example,
5 to 70% in wettable powders, preferably 10 to 50%
, emulsion (=5 to 40%, preferably 10 to 30%
%, granules (-0.5-30%, preferably 1-30%)
A degree of 'a' of 10% is used.

この様にして得られた水和剤、乳剤は水で所定の濃度に
希釈して懸濁液あるいは乳濁液として、雑草の発芽前に
土壌に散布処理もしくは混和処理、あるいは雑草の発芽
後(二茎葉散布処理される。粒剤はそのまま土壌表面に
散布処理される。実際に本発明除草剤を適用する(二あ
たってはlOアール当り有効成分20.9以−ヒ、好ま
しくは409以上の適当単が施用される。
The wettable powders and emulsions thus obtained are diluted with water to a predetermined concentration to form a suspension or emulsion, which can be sprayed or mixed into the soil before the germination of weeds, or after the germination of weeds ( The herbicide of the present invention is actually applied (20.9 or more active ingredients per 10 are, preferably 409 or more).The granules are directly sprayed on the soil surface. Appropriate chemicals are applied.

また本発明除草剤は公知の殺菌剤、殺虫剤、殺ダニ剤、
除草剤、植物生長調整剤等と混合して使用することもで
きる。特に除草剤と混合使用することにより、使用薬量
を減少させ、また省化力をもたらすのみならず、両薬剤
の相剰作用による一層高い効果も期待できる。本発明除
草剤と混合使用するにふされしい薬剤としては、例えば
、2−(1−アリルオキシアミノブチリデン)−5,5
−ジメチル−4−メトギシカルボニルーンクロヘキサン
−1,3−ジオンのナトリウム塩(フサガード)、2−
(N−エトA′シブチリミドイル)−5−(2−エテル
チオプLlビル)−3−ヒドロキシ−2−シクロヘキセ
ン−1−オン等のンクロヘキサンジオン系除草剤、イロ
ギザン、アロペックス等のフェノギンフェノキンアルカ
ンカルボン酸系除草剤、ブチル2C4−(fi−)リフ
ルオロメチル−2−ピリジルオキシ)フエノギシ〕プロ
ピオネート等のピリジルオキシ−フェノキンプロピオン
酸系除草剤等があげられる。
In addition, the herbicide of the present invention is a known bactericide, insecticide, acaricide,
It can also be used in combination with herbicides, plant growth regulators, etc. In particular, when used in combination with herbicides, not only can the amount of chemicals used be reduced and energy savings can be achieved, but even higher effects can be expected due to the synergistic action of both chemicals. Examples of agents suitable for use in combination with the herbicide of the present invention include 2-(1-allyloxyaminobutylidene)-5,5
-Dimethyl-4-methoxycarbonylone sodium salt of chlorhexane-1,3-dione (Fusagard), 2-
Nclohexanedione herbicides such as (N-EthoA'sibutyrimidoyl)-5-(2-ethelthiopLlbiru)-3-hydroxy-2-cyclohexen-1-one, fenoginphenoquine alkane carbonate such as Ilogizan, Alopex, etc. Examples include acid herbicides, pyridyloxy-phenoquine propionic acid herbicides such as butyl 2C4-(fi-)lifluoromethyl-2-pyridyloxy)phenoquine propionate, and the like.

次に本発明除草剤(1関する製剤例を若干示すがイ1効
成分の割合、添加物の種類及び添加割合は木製削剥にの
み限定されることなく広い範囲で変更可能である6 製剤例1 水和剤 化合物番号 3          40部タ  ″ 
 り                       
10  部ケイソウ土            1゜部
ホワイトカーボン               30
部以上を均一に混合、微細に粉砕して、有効成分40%
の水和剤を得た。
Next, some formulation examples related to the herbicide of the present invention (1) will be shown. (1) The ratio of active ingredients, types of additives, and addition ratios are not limited to wood scraping, and can be changed over a wide range.6 Formulation Example 1 Wettable powder compound number 3 40 parts
the law of nature
10 parts diatomaceous earth 1° part white carbon 30
40% active ingredient by uniformly mixing and finely pulverizing
A hydrating agent was obtained.

製剤例2  乳  剤 化合物番号 1          30部キシレン 
        50部 ジメチルホルムアミド            10f
lJポリオキシエチレンフエニルエーテル     1
o部以上を混合、溶解して有効成分30%の乳剤を得た
Formulation Example 2 Emulsion Compound No. 1 30 parts xylene
50 parts dimethylformamide 10f
lJ polyoxyethylene phenyl ether 1
O parts or more were mixed and dissolved to obtain an emulsion containing 30% of the active ingredient.

製剤例3  粒  剤 化合物番号 14         7部タ   ル 
 り                       
 38 部り   し   −           
              38 部ベントナイト 
            1o部アルギル硫酸ソーダ 
         7部以上を均一(=混合して微細に
粉砕後、直径0.5〜1.0 mmの粒状に造粒して有
効成分7%の粒剤を得た。
Formulation example 3 Granules Compound number 14 7 parts Tal
the law of nature
38 parts -
38 part bentonite
10 parts Sodium argyl sulfate
After uniformly mixing 7 parts or more and pulverizing it finely, it was granulated into particles with a diameter of 0.5 to 1.0 mm to obtain granules containing 7% of the active ingredient.

次(二本発明除草剤の効果に関する試験例を示す。Next (2) Test examples regarding the effects of the herbicide of the present invention are shown below.

試験例1  効力試験 200dのポットに土壌を充填し1表層にアカザ。Test example 1 Efficacy test Fill a 200 d pot with soil and add pigweed on the top layer.

イヌビニ、ハコベの種子を播き、温室内で生育させた。Seeds of dogweed and chickweed were sown and grown in a greenhouse.

各雑草が5〜15cm1度の草丈に生育した時点で各供
試化合物の乳剤を水で希釈して調整した所定濃度の薬液
(この場合2000.1000 ppm )を1001
/ 10 aの割合で小型噴霧器で雑草の茎葉部に散布
した。3週間後(二雑草の生育状況を調査した。
When each weed grows to a height of 5 to 15 cm, a chemical solution of a predetermined concentration (2000.1000 ppm in this case) prepared by diluting an emulsion of each test compound with water is added to 1001.
The foliage of weeds was sprayed with a small sprayer at a rate of 1/10 a. Three weeks later (the growth status of two weeds was investigated).

調査方法は下記に示す基塾(−従って視察で行ない、第
2表(二示す結果を得た。
The investigation method was as follows: The study was conducted at the school, and the results shown in Table 2 were obtained.

損傷率 0;0% 2:20〜30〃 4 :    40〜50 % 6 :    60〜70 〃 8 :    85〜9511 10:        100    //また1、3
.5.7.9の表示は各々0と2.2と4,4と6.6
と8.8と10の中間の値を示す。
Damage rate 0; 0% 2: 20-30 4: 40-50% 6: 60-70 8: 85-9511 10: 100 // Also 1, 3
.. 5.7.9 display is 0, 2.2 and 4, 4 and 6.6 respectively
indicates a value between 8.8 and 10.

第2表 ※3.5−ジクロロ−4−ジメチルアミノ−6−フェニ
ルピリダジン ※※5−アミノー4−クロロー2−フェニル−3(2H
)−ビリダジノン 試験例2  作物薬害試験 100dポツト(二土壌を充填し、大豆、トウモロコシ
、テンサイ、ナタネの種子を別々(二播き、温室内で生
育させた。作物が1〜3葉期程度に生育した時、各供試
化合物の乳剤を水で希釈して調整した所定濃度の薬液(
この場合2000ppm又は11000pp )を10
0 l、/10 aの割合で小型噴霧器にて作物の茎葉
部(=散布した。3週間後(二作物の生育状況を調査し
た。調査基阜は試験例1と同様の判定基阜に従って生′
^状態を調査し、第3表に示す結果を得た。
Table 2 *3.5-dichloro-4-dimethylamino-6-phenylpyridazine *5-amino-4-chloro-2-phenyl-3 (2H
) - Viridazinone Test Example 2 Crop Phytotoxicity Test 100 d pots (filled with two soils, seeds of soybean, corn, sugar beet, and rapeseed were sown separately (two times) and grown in a greenhouse. The crops grew to the 1st to 3rd leaf stage. At that time, a chemical solution of a prescribed concentration (prepared by diluting the emulsion of each test compound with water)
In this case, 2000ppm or 11000pp) is 10
It was sprayed on the foliage of the crops using a small sprayer at a rate of 0 l,/10 a. After 3 weeks, the growth status of the two crops was investigated. The investigation criteria were as follows: ′
^The condition was investigated and the results shown in Table 3 were obtained.

$3表 ※試験例1に同じ$3 table *Same as test example 1

Claims (1)

【特許請求の範囲】 (1)一般式 (式中、鳥は水素原子又は低級アルキル基を、1%は低
級アルキル基を、馬は低級アルキル基、又は低級アルキ
ルチオ基を、鴇は水素原子、ハロゲン原子、低級アルコ
ギン基、低級アルキルチオ基、又はモノもしくはジ低級
アルキルアミノ基を、馬はフェニル基、ハロゲン原子で
置換されたフェニルル、ハロゲン原子で置換されたツユ
。 ノギンフェニル基又はチェニル基を示す。)で表わされ
る化合物。 (式中、Yは水素原子又はハロゲン原子を、R3は低級
アルキル基又は低級アルキルチオ基を、馬はフェニル基
、ハロゲン原子で置換されたフェニル基、へロゲノフェ
ノキシフェニル基又ハ1イ。 (式中、ルは水素原子又は低級アルキル基を、R2は低
級アルキル基を示す。) で表わされるアミン類とを反応させることを特徴とする
一般式 (2 示し、■(≦はY又は −N<R,を示ず。)で表わさ
れる化合物の製造方法、 (式中、R,は水素原子又は低級アルキル基を、馬は低
級アルキル基を、IL、は低級アルギル基又は低級アル
ギルチオ糸を、RJまフェニル基、ハロゲノフェニル基
、ハロゲンフェノキシフェニル基又はチェニル基を示す
。) rho  ■ で表わされる化合物と一般式 R4M (式中、1(zは低級アルコキシ基又は低級アルキルチ
オ基を、Mはアルカリ金属原子又はアミンを示す。) で表わされる化合物を反応させることを特徴(式中、几
1、ル、R・3、)(・;、及びR・6は前記と同一の
意味を示す。) で表わされる化合物の製造方法。 (4)一般式 (式中、爬は水素原子又は低級アルキル基を、馬は低級
アルキル基を、■、は低級アルキル基又は低級アルキル
チオ基を、R5は水素原子、ハロゲン原子、低級アルコ
キシ基、低級アルキルチオ基又はモノもしくはジ低級ア
ルキルアミノ基を、ルはフェニル基、ハロゲン原子で置
換されたフェニル基、ハロゲン原子で置換されたフェノ
キンフェニル基又はチェニル基を示す。)で表わされる
化合物を有効成分として含有することを特徴とする除草
剤。
[Scope of Claims] (1) General formula (wherein the bird is a hydrogen atom or a lower alkyl group, 1% is a lower alkyl group, the horse is a lower alkyl group or a lower alkylthio group, the bird is a hydrogen atom, A halogen atom, a lower alkogine group, a lower alkylthio group, or a mono- or di-lower alkylamino group; ). (In the formula, Y is a hydrogen atom or a halogen atom, R3 is a lower alkyl group or a lower alkylthio group, and horse is a phenyl group, a phenyl group substituted with a halogen atom, a helogenophenoxyphenyl group, or H1). In the formula, R represents a hydrogen atom or a lower alkyl group, and R2 represents a lower alkyl group. <R, not shown.), where R is a hydrogen atom or a lower alkyl group, IL is a lower alkyl group, IL is a lower argyl group or a lower argylthio thread, RJ ma represents a phenyl group, a halogenophenyl group, a halogen phenoxyphenyl group or a chenyl group.) Rho ■ Compounds represented by the general formula R4M (where 1 (z represents a lower alkoxy group or a lower alkylthio group, M represents an alkali (represents a metal atom or amine) (in the formula, 几1, RU, R・3,) (・; and R・6 have the same meanings as above) A method for producing a compound represented by the following general formula: (4) In the formula, R represents a hydrogen atom or a lower alkyl group, R represents a lower alkyl group, ■ represents a lower alkyl group or a lower alkylthio group, and R5 represents a hydrogen atom. , a halogen atom, a lower alkoxy group, a lower alkylthio group, or a mono- or di-lower alkylamino group, and ru represents a phenyl group, a phenyl group substituted with a halogen atom, a phenyl group substituted with a halogen atom, or a phenyl group substituted with a halogen atom. A herbicide characterized by containing a compound represented by .) as an active ingredient.
JP8497683A 1983-05-17 1983-05-17 Pyridazine derivative and herbicide Pending JPS59212480A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8497683A JPS59212480A (en) 1983-05-17 1983-05-17 Pyridazine derivative and herbicide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8497683A JPS59212480A (en) 1983-05-17 1983-05-17 Pyridazine derivative and herbicide

Publications (1)

Publication Number Publication Date
JPS59212480A true JPS59212480A (en) 1984-12-01

Family

ID=13845646

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8497683A Pending JPS59212480A (en) 1983-05-17 1983-05-17 Pyridazine derivative and herbicide

Country Status (1)

Country Link
JP (1) JPS59212480A (en)

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US8367688B2 (en) 2005-09-29 2013-02-05 Elan Pharmaceuticals, Inc. Carbamate compounds which inhibit leukocyte adhesion mediated by VLA-4
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