N-substituted-3-(nitrogen-containing 5-membered ring)-benzenesulfonamide derivatives, preparation process thereof and herbicidal compositions.

摘要

Disclosed herein are N-substituted-3-(nitrogen-containing 5-membered ring)benzenesulfonamide derivatives of the formula (I): <CHEM> R<1> is H, Cl, C1-C3 alkyl or C1-C4 alkoxycarbonyl; Z is CH or N; X<1> is C1-C3 alkyl, C1-C3 alkoxyl or Cl; and X<2> is C1-C3 alkyl or C1-C3 alkoxyl, a process for the preparation thereof, and herbicidal compositions containing the N-substituted-3-(nitrogen-containing 5-membered ring)benzenesulfonamide derivatives as active ingredients.