Herbicidal sulfonamides and their use to influence plant growth
    2.
    发明授权
    Herbicidal sulfonamides and their use to influence plant growth 失效
    除草剂磺酰胺及其用于影响植物生长的因素

    公开(公告)号:US5104441A

    公开(公告)日:1992-04-14

    申请号:US618587

    申请日:1990-11-28

    IPC分类号: A01N47/36 C07D521/00

    CPC分类号: C07D521/00 A01N47/36

    摘要: Substituted sulfonylureas of the formula I ##STR1## where R.sup.1 is hydrogen, C.sub.1 -C.sub.4 -alkyl, C.sub.3 -C.sub.4 -alkenyl or alkynyl, C.sub.1 -C.sub.4 -haloalkyl, C.sub.3 -C.sub.6 -alkoxyalkyl, C.sub.4 -C.sub.6 -haloalkoxyalkyl or C.sub.5 -C.sub.6 -cycloalkyl,R.sup.2 is hydrogen, methyl or ethyl,R.sup.3 is hydrogen, halogen, methyl or methoxy,R.sup.4 is hydrogen, methyl or methoxy,X is N or C--H,and Hal is fluorine, chlorine or bromine, and alkali metal or alkaline earth metal salts thereof, with the proviso that R.sup.1 is not methyl when Hal is chlorine and X is N, a process for the manufacture of sulfonylureas of the formula I and their use as herbicides.

    摘要翻译: 取代的式I的磺酰脲其中R 1是氢,C 1 -C 4 - 烷基,C 3 -C 4 - 烯基或炔基,C 1 -C 4卤代烷基,C 3 -C 6 - 烷氧基烷基,C 4 -C 6 - 卤代烷氧基烷基或C 5 -C 6 环烷基,R 2是氢,甲基或乙基,R 3是氢,卤素,甲基或甲氧基,R 4是氢,甲基或甲氧基,X是N或CH,Hal是氟,氯或溴,以及碱金属或碱土 金属盐,条件是当Hal为氯且X为N时,R1不是甲基,制备式I磺酰脲的方法及其作为除草剂的用途。