Process for the preparation of 2,3-dialkoxypropanals

US5081313A · kind A · utility

Assignee

• BASF SE

Inventors

• Dieter Koeffer · Weinheim, DE
• Robert Maerkl
• Werner Bertleff · Viernheim, DE

Key dates

• Filing date: May 23, 1990
• Grant date: Jan 14, 1992
• Expiry date: May 23, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07C45/49
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The preparation of 2,3-dialkoxypropanals of the general formula I ##STR1## in which R.sup.1 and R.sup.2 denote C.sub.1 -C.sub.8 -alkyl or C.sub.5 - or C.sub.6 -cycloalkyl which may or may not bear substituents which are inert under the conditions of the reaction, wherein a 1,2-dialkoxy ethene of the general formula II EQU R.sup.1 O--HC.dbd.CH--OR.sup.2 (II) is reacted with carbon monoxide and hydrogen in the presence of a rhodium-containing catalyst.