N-substituted-3-(substituted hydrazino)benzenesulfonamide derivatives, and herbicidal compositions

摘要

Disclosed herein are N-substituted-3-(substituted hydrazino)benzenesulfonamide derivatives of the formula (I): <IMAGE> (I) wherein R1 is CF3, COOH or CCl=CClCOOH, R2 is H, Cl, C1-C3 alkyl or C1-C4 alkoxycarbonyl; Z is CH or N; X1 is C1-C3 alkyl, C1-C3 alkoxyl or Cl; and X2 is C1-C3 alkyl or C1-C3 alkoxyl, a process for the preparation thereof, and herbicidal compositions containing the N-substituted-3-(substituted hydrazino)benzenesulfonamide derivatives as active ingredients.