OXIMINO DIPHENYL ETHER DERIVATIVES AND THEIR USE AS HERBICIDES

摘要

Oximino diphenyl ether derivatives having the general formula I:- wherein R1 represents a halogen atom or a haloalkyl group; R2 and R3, which may be the same or different, each independently represents a hydrogen or halogen atom or a nitro, cyano or haloalkyl group; X represents a cyano or triazole group or group SR4 or NR5R6 in which R4 represents an optionally substituted alkyl, aryl, aralkyl, alkoxycarbonylalkyl or acyl group; R5 represents an optionally substituted alkyl or aralkyl group and R6 represents an optionally substituted alkyl, aralkyl or alkoxy group or the groups R5 and R6 together jointly represent an alkylene group; and Z represents a hydrogen atom or an optionally substituted alkyl, cycloalkyl, alkenyl, aralkyl, alkoxycarbonylalkyl, or acyl group. The preparation of such compounds; herbicidal compositions containing them and their herbicidal use.