| 摘要 |
Benzene sulfonylurea derivs. of formula (I) are new. In the formula (I), R1=H, C1-3 alkyl, C1-3 haloalkyl, halogen, CN, nitro, C1-3 alkoxy, C1-3 haloalkoxy, C1-3 alkylthio, C1-3 alkylsulfinyl, C1-3 alkylsulfonyl, SCHF2, NH2, NHCH3, N(Me)2, C1-2 alkyl substd. by C1-2 alkoxy, C1-2 haloalkoxy, SH, SCH3, CN or OH; R2=C1-6 alkyl substd. by 1-3 halogen; R3=H or CH3; W=O or S. Pref. the cpds. (I) are N(4,6-dimethoxy pyrimidine-2-yl)amino carbonyl)-2-(1- hydroxy-2-fluoro ethyl)benzene sulfonamide, N-((4-methoxy-6- methyl pyrimidine-2-yl)aminocarbonyl)-2-(1-hydroxy-2-fluoro ethyl) benzene sulfonamide, etc. The cpds. (I) have a herbicidal activity.
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