heterocyclisch substituted n - sultam - sulphonamides, processes for their manufacture and their use as herbicides and pflanzenwachstumsregulatoren.

摘要

Compounds of the formula I or their salts IMAGE (I) wherein R1 and R2 denote H, halogen, alkyl, alkenyl, alkynyl or alkoxy, which can be substituted, or denote -(CH2)n-COOR11; R3 denotes H, alkyl, alkenyl or alkynyl; R4 denotes a heterocyclic radical of the formulae IMAGE where E is CH or N; X is O or S nd a, b, c, d, e in each case denote 0, 1 or 2, with the proviso that c+d+e/=2, possess excellent herbicidal and plant growth-regulating properties.