申请人:MAY & BAKER LIMITED
公开号:EP0034945A2
公开(公告)日:1981-09-02
N-Phenylpyrazole derivatives of the formula:-
(wherein each of R5 and R6 represents a C1-C4 alkyl or alkoxy radical, a trifluoromethyl, trifluoromethoxy, nitro, cyano or primary amino radical, or a fluorine, chlorine or bromine atom, each of R', R' and R9 represents a hydrogen atom, a C1-C4 alkyl or alkoxy radical, a trifluoromethyl, trifluoromethoxy, nitro, cyano or primary amino radical or a fluorine, chlorine or bromine atom, or R5, R7, R' and R9 each represents a hydrogen atom and R6 represents a trifluoromethoxy or trifluoromethyl radical, and R10 represents a cyano radical or substituted carbamoyl radical -CONHR", wherein R" represents a methyl or ethyl radical) have been found to possess useful herbicidal properties. All such N-phenylpyrazole derivatives with the exception of 5-amino-4-cyano-1-(2,4-dichlorophenyl)pyrazole and 5-amino-4-cyano-1- (4-chloro-2-methylphenyl)pyrazole are new compounds. Herbicidal compositions containing such N-phenylpyrazole derivatives are described and also processes for the prepararation of the new compounds.
式中的 N-
苯基
吡唑衍
生物
(其中R5和R6各自代表C1-C4烷基或烷
氧基、三
氟甲基、三
氟甲
氧基、硝基、
氰基或伯
氨基或
氟、
氯或
溴原子,R'、R'和R9各自代表
氢原子、C1-C4烷基或烷
氧基、三
氟甲基、三
氟甲
氧基、硝基、
氰基或伯
氨基或
氟、R5、R7、R'和 R9 各代表一个
氢原子,R6 代表三
氟甲
氧基或三
氟甲基基,R10 代表
氰基或取代的
氨基甲酰基 -CONHR",其中 R "代表
甲基或乙基)已被发现具有有用的除草特性。除 5-
氨基-4-
氰基-1-(
2,4-二
氯苯基)
吡唑和 5-
氨基-4-
氰基-1-(4-
氯-
2-甲基苯基)
吡唑外,所有这些 N-
苯基
吡唑衍
生物都是新化合物。本文介绍了含有此类 N-
苯基
吡唑衍
生物的除草组合物,以及制备这些新化合物的工艺。