Herbicidal sulphonylated carboxamides

US5205853A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hilmar Wolf · Langenfeld, DE
• Rolf Kirsten · Monheim, DE
• Hans-Joachim Santel · Leverkusen, DE
• Klaus Lurssen · Wittlich, DE
• Robert R. Schmidt · Cologne, DE

Key dates

• Filing date: May 23, 1991
• Grant date: Apr 27, 1993
• Expiry date: May 23, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07D277/56
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Herbicidal sulphonylated carboxamides of the formula EQU R.sup.1 --CO--NH--SO.sub.2 --(A).sub.n --R.sup.2 (I) in which PA1 n represents the numbers 0 or 1, PA1 A represents oxygen, imino (NH) or methylene (CH.sub.2), PA1 R.sup.1 represents a five-membered heteroaryl radical which contains 1 or 2 nitrogen atoms and additionally one oxygen or sulphur atom in the ring and which is optionally substituted by halogen or by alkyl, alkoxy, alkylthio, alkylsulphinyl, alkylsulphonyl, alkylamino, dialkylamino or phenyl which are in each case optionally substituted, and PA1 R.sup.2 represents aryl or heteroaryl which are in each case optionally substituted, or salts thereof, with the exclusion of the compound 2-dimethylamino-N-(4-methyl-phenylsulphonyl)-5-thiazole carboxamide.