申请人:BASF Aktiengesellschaft
公开号:US05434124A1
公开(公告)日:1995-07-18
Sulfonylurea derivatives of the formula I ##STR1## where R.sup.1 is unsubstituted or substituted alkyl or phenyl; alkenyl or propargyl, alkylamino or dialkylamino; R.sup.2 is hydrogen, halogen, unsubstituted or substituted methyl, methoxy or ethoxy, alkylsulfonyl, nitro or cyano; R.sup.3 is difluoromethoxy, trifluoromethoxy, bromodifluoromethoxy, chlorodifluoromethoxy or fluorine; R.sup.4 is halogen, unsubstituted or halogen-substituted methyl, ethyl, methoxy or ethoxy or is methylamino or dimethylamino; R.sup.5 is hydrogen, alkyl or alkenyl or alkynyl, and Z is CH or N, with the proviso that a) when R.sup.3 is difluoromethoxy, R.sup.1 is not dialkylamino, R.sup.2 is not alkylsulfonyl and R.sup.4 is not methyl or methoxy and b) when R.sup.3 is fluorine and Z is N, R.sup.4 is not alkylamino, and salts thereof are suitable as herbicides.
磺酰脲衍生物的化学式为I ##STR1## 其中R.sup.1是未取代或取代的烷基或苯基;烯基或丙炔基,烷基氨基或二烷基氨基;R.sup.2是氢,卤素,未取代或取代的甲基,甲氧基或乙氧基,烷基磺酰基,硝基或氰基;R.sup.3是二氟甲氧基,三氟甲氧基,溴二氟甲氧基,氯二氟甲氧基或氟;R.sup.4是卤素,未取代或卤素取代的甲基,乙基,甲氧基或乙氧基或是甲基氨基或二甲基氨基;R.sup.5是氢,烷基或烯基或炔基,Z是CH或N,但需注意a)当R.sup.3是二氟甲氧基时,R.sup.1不是二烷基氨基,R.sup.2不是烷基磺酰基,R.sup.4不是甲基或甲氧基;b)当R.sup.3是氟且Z是N时,R.sup.4不是烷基氨基,其盐可用作除草剂。