| 摘要 |
N-(2-Heterocyclylphenylsulfonyl)-N'-pyrimidinylureas and N-(2-heterocyclylphenylsulfonyl)-N'-triazinylureas of the general formula I <IMAGE> 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=, Z is oxygen or sulfur, R1 is customary phenyl substitutent, R2 is hydrogen, lower alkyl or lower alkoxy, R3 and R4 are each independently hydrogen, lower alkyl, lower alkoxy, lower alkylthio, cycloalkyl, halogen, haloalkyl, haloalkoxy, haloalkylthio, alkoxyalkyl, dialkoxyalkyl, amino, diethylamino.
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