Preparation of diketones

US4235823A · kind A · utility

Assignee

• BASF SE

Inventors

• Christian Dudeck
• Gunter Lehmann · Ludwigshafen, DE
• Karl-Heinz Ross · Grünstadt, DE
• Werner Fliege
• Norbert Petri · Bischofswerda, DE
• Hans Diem · Mannheim, DE
• Bernd Meissner · Heidelberg, DE
• Wolfgang Sauer · Everberg, BE

Key dates

• Filing date: Jun 26, 1979
• Grant date: Nov 25, 1980
• Expiry date: Jun 26, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C45/38
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Diketones are prepared by oxidizing glycols in the presence of a silver catalyst and/or copper catalyst of a specific particle size, under specific temperature conditions and with a specific composition of the catalyst. The end products are starting materials for the preparation of dyes, drugs, plastics, scents, wrinkle-resist finishes and assistants for increasing the tear strength and resilience of fibrous materials, hardeners for use in the photographic industry, textile assistants for preventing shrinkage after washing, and paper assistants.