NOVEL THIOPHENESULFONYLUREA DERIVATIVES AND HERBICIDAL COMPOSITION CONTAINING THE SAME

摘要

The present invention relates to a thiophenesulfonylurea derivative represented by general formula (I), the process for preparation thereof, and herbicide using it; and a salt thereof, in which T represents a group T1, T2, or T3 having general formula (a), wherein E represents a direct bond; R represents hydrogen or C1-4 acyl; R<1> represents C1-6 alkyl substituted with 1 to 3 halogen atoms; R<2> represents hydrogen, C1-3 alkyl, C1-3 haloalkyl, halogen, cyano, C1-3 alkoxy, C1-3 haloalkoxy, amino, methylamino, dimethylamino, or C1-2 alkyl substitued with C1-2 alkoxy, C1-2 haloalkoxy, thiol, methylthio, cyano or hydroxy; A represents a group selected from A1 to A4 having general formulae (b), and a herbicidal composition containing these derivatives.