| abstract |
N-[(1,3,5-triazine-2-yl)aminocarbonyl]benzene sulphonamide herbicides of generic formula (I), wherein R1 represents methyl or ethyl; R2 represents hydrogen or methyl; R3 represents optionally substituted alkyl, or a group OR?5 or SR5¿, in which R5 represents optionally fluorine substituted alkyl, except difluoromethoxy, or nitro, hydroxy; R4 represents hydrogen, methyl, ethyl, methoxy, ethoxy, methylthio, ethylthio, C¿1?-C2 halogen alkoxy, fluorine, chlorine, except 6-chlorine and 6-fluorine when R?3¿ represents an alkyl or C¿1?-C2 alkoxy; as well as their agriculturally usable salts and process for their manufacture and use. |