PROCESS FOR THE PREPARATION OF SUBSTITUTED PHENYLSULPHONYLGUANIDINE DERIVATIVES, HERBICIDAL COMPOSITIONS, USE, PROCESSES FOR THE PREPARATION OF COMPOSITES AND FOR THE PREPARATION OF SUBSTITUTED PHENYLSULPHONYLOTSILYNOTYLEDS

摘要

Substituted phenylsulfonyl guanidines of the formula IMAGE in which R1 is a phenyl or phenoxy group, R2 and R3 each independently is a lower alkyl or lower alkoxy group, and R4 is a hydrogen atom, a lower alkyl group or a lower alkoxy group, which possess herbicidal activity. Intermediates therefor of the formulas IMAGE and IMAGE are new and also herbicidal. Intermediates of the formulas IMAGE IMAGE are also new.