3-(HETERO)ARYL ALKYLIC ACID DERIVATIVES, METHOD OF PREPARING THEM, HERBICIDAL AND PLANTGROWTA REGULATING COMPOSITIONS CONTAINING TAEM AND THEIR USE

摘要

The present invention relates to 3- (aryl or heteroaryl) alkanoic acid derivatives of the formula (I) in which R is a carboxyl group or a group of the formula C (O) OR10 in which R10 is a C1-8 alkyl group; R 2 is C 1-4 alkoxy, X is CH, R 3 is C 1-4 alkoxy, R 4 is optionally halogen, nitro, C 1-4 alkyl, C 1-4 haloalkyl or C 1-4 carbon; - phenyl substituted by an atomic alkoxy group; or a 5- or 6-membered heteroaromatic group containing a nitrogen atom or a sulfur atom or an oxygen atom, R5-1 represents a hydrogen atom, an alkyl group or a phenyl group having 1 to 4 carbon atoms; R 6 is C 1-8 alkyl, phenyl or phenyl (C 1-3 alkyl) optionally substituted with halogen or C 1-4 haloalkyl, Y is sulfur or oxygen, and Z is sulfur or oxygen; with the proviso that when R4 represents an unsubstituted phenyl group and Z represents an oxygen atom and at the same time R5 represents a methyl group or a hydrogen atom, it represents a group other than an alkyl group having an R61-4 alkyl group, and agriculturally acceptable salts and their preparation, herbicides and plant development ŕ