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    • 2. 发明授权
    • Herbicidal use of esters of aminohalopyridyloxy acids
    • 除草剂使用氨基卤吡啶氧基酸酯
    • US4108629A
    • 1978-08-22
    • US745714
    • 1976-12-01
    • Lennon H. McKendry
    • Lennon H. McKendry
    • A01N43/40C07D213/73C07D213/74A01N9/22
    • C07D213/73A01N43/40C07D213/74
    • Compounds corresponding to the formula ##STR1## wherein X represents chloro, bromo, or fluoro; R represents alkyl of 1 to 12 carbon atoms or a radical having the formula --(CH.sub.2).sub.n OR.sup.3 wherein n represents an integer of from 2 to 4 and R.sup.3 represents lower alkyl of 1 to 4 carbon atoms or phenyl; M represents hydrogen or methyl; R.sup.1 represents hydrogen, lower alkyl of 1 to 4 carbon atoms, amino or loweralkylamino of 1 to 4 carbon atoms; and R.sup.2 represents hydrogen, X, loweralkyl, amino or loweralkylamino, with the proviso that one of R.sup.1 or R.sup.2 is always amino or loweralkylamino and the other of R.sup.1 and R.sup.2 is always other than amino or loweralkylamino are prepared. These compounds are useful as herbicides and as active agents in compositions used as herbicides.
    • 对应于式“IMAGE”的化合物,其中X代表氯,溴或氟; R表示1至12个碳原子的烷基或具有式 - (CH 2)nOR 3的基团,其中n表示2至4的整数,R 3表示1至4个碳原子的低级烷基或苯基; M代表氢或甲基; R 1表示氢,1至4个碳原子的低级烷基,1至4个碳原子的氨基或低级烷基氨基; 并且R 2表示氢,X,低级烷基,氨基或低级烷基氨基,条件是R 1或R 2中的一个总是氨基或低级烷基氨基,并且R 1和R 2中的另一个总是不是氨基或低级烷基氨基。 这些化合物可用作除草剂并用作用作除草剂的组合物中的活性剂。
    • 4. 发明授权
    • Preparation of substituted
1,2,4-triazolo[1,4-a]pyrimidine-2-sulfonanilides
    • 取代的1,2,4-三唑并[1,4-a]嘧啶-2-磺酰苯胺的制备
    • US5003096A
    • 1991-03-26
    • US447981
    • 1989-12-07
    • Lennon H. McKendry
    • Lennon H. McKendry
    • C07D487/04
    • C07D487/04
    • Substituted 1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonanilides, which are known herbicides, are prepared by the reaction of substituted 1,2,4-triazolo[1,5-a]-pyrimidine-2-sulfonyl halides with substituted N-trialkylsilylanilines in the presence of a base catalyst. The method is especially useful for the preparation of substituted 1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonanilides derived from substituted anilines having both 2- and 6-substituents, at least one of which is electron withdrawing, such as N-(2,6-dichlorophenyl)-5,7-dimethyl-1,2,4-triazolo[1,5-a]pyrimidine-2-sulfonamide. N-trialkylsilylanilines having both 2- and 6-substituents, at least one of which is electron withdrawing, such as N-trimethylsilyl-2,6-dichloro-3-methylaniline, are described.
    • 取代的1,2,4-三唑并[1,5-a]嘧啶-2-磺酰苯胺,其是已知的除草剂,通过取代的1,2,4-三唑并[1,5-a] 2-磺酰卤与取代的N-三烷基甲硅烷基苯胺在碱催化剂存在下反应。 该方法特别可用于制备衍生自具有2-取代基和6-取代基的取代苯胺的取代的1,2,4-三唑并[1,5-a]嘧啶-2-磺酰苯胺,其中至少一个是吸电子 ,如N-(2,6-二氯苯基)-5,7-二甲基-1,2,4-三唑并[1,5-a]嘧啶-2-磺酰胺。 描述了具有2-取代基和6-取代基的N-三烷基甲硅烷基苯胺,其中至少一个是吸电子,例如N-三甲基甲硅烷基-2,6-二氯-3-甲基苯胺。