申请人:Ciba-Geigy Corporation
公开号:US04444583A1
公开(公告)日:1984-04-24
N-Phenylsulfonyl-N'-triazinylureas of the general formula ##STR1## and the salts thereof with amines, alkali metal or alkaline earth metal bases or with quaternary ammonium bases, have good pre- and postemergence selective herbicidal and growth regulating properties. In the above formula A is difluoromethyl or 1,1,2,2-tetrafluoroethyl, X is oxygen, sulfur, a sulfinyl or sulfonyl bridge, Z is oxygen or sulfur and R.sub.3 and R.sub.4, each independently of the other, are hydrogen, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, C.sub.1 -C.sub.4 alkylthio, C.sub.1 -C.sub.4 haloalkyl, halogen or alkoxyalkyl or at most 4 carbon atoms.
N-苯磺酰-N'-三嗪基脲的一般式##STR1##及其与胺、碱金属或碱土金属碱或季铵碱的盐具有良好的前期和后期选择性除草和生长调节性能。在上述式中,A为二氟甲基或1,1,2,2-四氟乙基,X为氧、硫、亚砜或磺酰桥,Z为氧或硫,R.sub.3和R.sub.4分别独立于对方,为氢、C.sub.1-C.sub.4烷基、C.sub.1-C.sub.4烷氧基、C.sub.1-C.sub.4烷硫基、C.sub.1-C.sub.4卤代烷基、卤素或烷氧基烷基或最多4个碳原子。