| abstract |
Herbicidal sulphonyliso(thio)ureas of the formula <IMAGE> (I) in which M stands for hydrogen or an alkali metal equivalent or an alkaline earth metal equivalent, n stands for the numbers zero or 1, Q stands for oxygen or sulphur, R1 stands for C1-C6-alkyl which is optionally substituted by substituents from the series comprising halogen or C1-C4-alkoxy, R2 stands for an optionally substituted phenyl radical, R3 stands for C1-C2-alkyl or C1-C2-alkoxy which are optionally substituted by halogen, R4 stands for C1-C2-alkyl or C1-C2-alkoxy which are optionally substituted by halogen, and Z stands for N or CH, with the proviso that Z stands for N when n stands for zero. Intermediates of the formula <IMAGE> and <IMAGE> are also new. |