abstract |
Described are compounds, suitable for use as herbicides and plant-growth regulators, of the formula (I) (salt form) in which R1 to R5, X, Y, Z, M and n are as defined in claim 1 and, in particular, R2 is a (substituted) hydrocarbon group and R3 is an acyl group. Compounds of the formula (I) are prepared by prior art methods or from: a) appropriately substituted phenylsulphonamides (V) and Cl-COOAr and subsequent reaction with heterocyclic amines (VII) or b) appropriate sulphochlorides (IX) and amines (VII) in the presence of cyanates (see claim 8). |