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

US5186736A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Oswald Ort · Königstein, DE
• Lothar Willms · Hillscheid, DE
• Klaus Bauer · Rodgau, DE
• Hermann Bieringer · Eppstein, DE
• Arno Schulz · Hattersheim, DE

Key dates

• Filing date: Jul 11, 1991
• Grant date: Feb 16, 1993
• Expiry date: Jul 11, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D491/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Compounds of the formula I or salts thereof ##STR1## where R.sup.1 is H or an aliphatic radical; R.sup.2 and R.sup.3 are H, alkyl or phenyl; W is O, S, NR.sup.4 or NOR.sup.4 ; X is CHR.sup.2, O or NR.sup.4 ; 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.