申请人:Imperial Chemical Industries Limited
公开号:US04246419A1
公开(公告)日:1981-01-20
A herbicidal sulphonamide compound of the formula (I): ##STR1## and salts thereof, wherein R.sup.1 is a pyridyl group of the formula: ##STR2## wherein the group X of the pyridyl group represents a fluorine, chlorine, bromine, or iodine atom, or an alkyl radical of 1 to 4 carbon atoms optionally substituted by one or more fluorine or chlorine atoms, and the group Y represents hydrogen, fluorine chlorine, bromine, or iodine or an alkyl radical of 1 to 4 carbon atoms optionally substituted by one or more fluorine or chlorine atoms; R.sup.2 represents an alkyl radical of 1 to 6 carbon atoms optionally substituted by one or more fluorine atoms; and R.sup.3 is hydrogen or an alkyl radical of 1 to 4 carbon atoms.
化学式(I)的除草磺胺化合物:其中R.sup.1是化学式的吡啶基:其中吡啶基的X代表氟、氯、溴或碘原子,或1至4个碳原子的烷基基团,可以选择地被一个或多个氟或氯原子取代,Y代表氢、氟、氯、溴或碘或1至4个碳原子的烷基基团,可以选择地被一个或多个氟或氯原子取代;R.sup.2代表1至6个碳原子的烷基基团,可以选择地被一个或多个氟原子取代;R.sup.3是氢或1至4个碳原子的烷基基团。