申请人:May & Baker Limited
公开号:US04496390A1
公开(公告)日:1985-01-29
N-Phenylpyrazole derivatives of the formula: ##STR1## (wherein each of R.sup.5 and R.sup.6 represents a C.sub.1 -C.sub.4 alkyl or alkoxy radical, a trifluoromethyl, trifluoromethoxy, nitro, cyano or primary amino radical, or a fluorine, chlorine or bromine atom, each of R.sup.7, R.sup.8 and R.sup.9 represents a hydrogen atom, a C.sub.1 -C.sub.4 alkyl or alkoxy radical, a trifluoromethyl, trifluoromethoxy, nitro, cyano or primary amino radical or a fluorine, chlorine or bromine atom, or R.sup.5, R.sup.7, R.sup.8 and R.sup.9 each represents a hydrogen atom and R.sup.6 represents a trifluoromethoxy or trifluoromethyl radical, and R.sup.10 represents a cyano radical or substituted carbamoyl radical --CONHR.sup.11, wherein R.sup.11 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 preparation of the new compounds.
N-苯基吡唑衍生物的化学式为:(其中R.sup.5和R.sup.6分别代表C.sub.1-C.sub.4烷基或烷氧基基团,三氟甲基,三氟甲氧基,硝基,氰基或一级氨基基团,或者氟,氯或溴原子,R.sup.7,R.sup.8和R.sup.9分别代表氢原子,C.sub.1-C.sub.4烷基或烷氧基基团,三氟甲基,三氟甲氧基,硝基,氰基或一级氨基基团,或者氟,氯或溴原子,或者R.sup.5,R.sup.7,R.sup.8和R.sup.9分别代表氢原子,R.sup.6代表三氟甲氧基或三氟甲基基团,R.sup.10代表氰基或取代的氨基甲酰基团--CONHR.sup.11,其中R.sup.11代表甲基或乙基基团)已被发现具有有用的除草特性。除了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)吡唑之外,所有这些N-苯基吡唑衍生物都是新化合物。描述了含有这些N-苯基吡唑衍生物的除草剂组合物以及制备新化合物的方法。