Preparation of glutaraldehyde

US5600018A · kind A · utility

Assignee

• BASF SE

Inventors

• Rainer Becker · Bad Dürkheim, DE
• Wolfgang Friedrich · Speyer, DE
• Walter Klink · Birkenheide, DE
• Juergen Schossig
• Andreas Henne · Neustadt, DE

Key dates

• Filing date: Aug 7, 1995
• Grant date: Feb 4, 1997
• Expiry date: Aug 7, 2015

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C45/60
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for preparing glutaraldehyde by reaction of alkoxydihydropyrans of the general formula I ##STR1## where R is C.sub.1 -C.sub.20 -alkoxy, with water at from 0.degree. to 150.degree. C. and from 0.01 to 50 bar in the presence of a catalyst consisting essentially of a bleaching earth.