THIOPHEN SULFONYL UREA DERIVATIVES

摘要

Thiophene sulfonylurea derivs. of formula (I) are new. In the formula (I), R1=H, C1-3 alkyl, C1-3 haloalkyl, halogen, CN, C1-3 alkoxy, C1-3 haloalkoxy, NH2, NHCH3, N(Me)2, C1-2 alkyl substd. by C1-2 alkoxy, C1-2 haloalkoxy, SH, SCH3, CN or OH; R3=H or CH3; W=O or S; P= a gp. of formula (II), (III) or (IV). Pref. the cpds. (I) are methyltriazine-2-yl)amino carbonyl)-4-thiophene sulfonamide, aminocarbonyl)-3-(2-fluoromethyl-1,3-dioxyalane-2-yl)-4thiophene sulfonamide, etc. The cpds. (I) have a herbicidal activity.