| abstract |
Herbicide N-[(pyrimidin-2-yl)aminocarbonyl] benzene sulphonamides of general formula I, wherein the substituents represent the following: R1 represents methyl or ethyl; R2 represents hydrogen or methyl; R3 represents optionally substituted alkyl; or a group ER6, in which E stands for O or S, and R6 represents optionally fluorine-susbtituted alkyl except difluoromethoxy or, if E represents O and simultaneously R5 represents trifluoromethyl, can represent methyl sulphonyl, ethyl sulphonyl, trifluoromethyl sulphonyl, allyl sulphonyl, or propargyl sulphonyl; or NO¿2? or OH; or a dialkyl group, if R?5¿ represents fluorine; or a C¿1?-C2- alkyl sulphonyl group which can contain 1-3 halogen atoms; R?4¿ represents hydrogen, methyl, ethyl, methoxy, ethoxy, fluorine, chlorine, methylthio, ethylthio, or C¿1?-C2- halogen alkoxyl; R?5¿ represents fluorine or trifluoromethyl, as well as their environmentally acceptable salts and process for their manufacture and their use. |