Sulfonamides

US5252540A · kind A · utility

Assignee

• BASF SE

Inventors

• Elisabeth Heistracher · Ludwigshafen, DE
• Klaus Fischer · Speyer, DE
• Horst Mayer · Ludwigshafen, DE
• Thomas Saupe · Sandhausen, DE
• Gerhard Hamprecht · Weinheim, DE
• Klaus Ditrich · Neheim, DE
• Thomas Kuekenhoehner · Bischofswerda, DE
• Matthias Gerber · Schifferstadt, DE
• Helmut Walter · Obrigheim, DE
• Karl-Otto Westphalen · Speyer, DE

Key dates

• Filing date: Sep 16, 1991
• Grant date: Oct 12, 1993
• Expiry date: Sep 16, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D409/12
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Sulfonamides of the formula I ##STR1## where A is an unsubstituted or substituted aromatic or heteroaromatic radical; W is oxygen or sulfur; B is an unsubstituted or substituted furyl, thienyl, pyrrolyl, oxazolyl, isothiazolyl, imidazolyl, pyrazolyl, thiadiazolyl, oxadiazolyl or triazolyl radical, and the environmentally compatible salts thereof are prepared as described and are used as herbicides.