Heterocyclic N-acylsulfonamides and their use as herbicides or growth regulators

摘要

Compounds of the formula I or salts thereof <IMAGE> I where R1 is H or an aliphatic radical; R2 and R3 are H, alkyl or phenyl; W is O, S, NR4 or NOR4; X is CHR2, O or NR4; L is a (substituted) phenyl, naphthyl or monocyclic heteroaryl radical, A is a (substituted) pyrimidyl, triazinyl, triazolyl or bicyclic heteroaryl radical, and m and n are 0 or 1, have advantageously herbicidal or plant growth-regulating properties.