ACYLATED SULPHONYLGUANIDINES

摘要

Novel herbicides of the formula in which R1 represents an organic radical, R2 represents hydrogen or an organic radical, R3 represents an organic radical or an amino radical, R4 represents hydrogen, an organic radical, an ether radical or an amino radical, X represents N or CH, Y and Z each represent N, CH or a substituted C radical, and M is H, a metal ion or an acyl radical, or a strong acid adduct thereof. Some intermediates are also new.