申请人:Ciba-Geigy Corporation
公开号:US04637829A1
公开(公告)日:1987-01-20
N-(2-Heterocyclylphenylsulfonyl)-N'-pyrimidinylureas and N-(2-heterocyclylphenylsulfonyl)-N'-triazinylureas of the general formula I ##STR1## and the salts thereof with amines, alkali metal bases or alkaline earth metal bases or with quaternary ammonium bases have good pre-and postemergence selective herbicidal and growth regulating properties. In this formula A is a substituted furyl, thienyl or pyrrole radical, E is nitrogen or the methine group --CH.dbd., Z is oxygen or sulfur, R.sup.1 is customary phenyl substituent, R.sup.2 is hydrogen, lower alkyl or lower alkoxy, R.sup.3 and R.sup.4 are each independently hydrogen, lower alkyl, lower alkoxy, lower alkylthio, cycloalkyl, halogen, haloalkyl, haloalkoxy, haloalkylthio, alkoxyalkyl, dialkoxyalkyl, amino, diethylamino.
通用公式I的N-(2-杂环基苯基磺酰基)-N'-嘧啶基脲和N-(2-杂环基苯基磺酰基)-N'-三嗪基脲及其与胺、碱金属碱或碱土金属碱或季铵基的盐具有良好的前后除草和生长调节性能。在该公式中,A是取代的呋喃基、噻吩基或吡咯基,E是氮或亚甲基基团--CH.dbd.,Z是氧或硫,R.sup.1是惯用的苯基取代基,R.sup.2是氢、低烷基或低烷氧基,R.sup.3和R.sup.4各自独立地是氢、低烷基、低烷氧基、低烷基硫基、环烷基、卤素、卤代烷基、卤代氧基、卤代烷硫基、氧烷基、二烷氧基烷基、氨基、二乙基氨基。