Production of tertiary (hydroxymethyl)-methylphosphine oxides

US4028421A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Bernd Lippsmeier
• Klaus Hestermann · Lechenich, DE
• Martin Reuter · Dachau, DE

Key dates

• Filing date: Mar 21, 1975
• Grant date: Jun 7, 1977
• Expiry date: Mar 21, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/5304
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Production of tertiary (hydroxymethyl)-methylphosphine oxides of the general formula: ##STR1## in which R stands for a branched or unbranched, substituted or unsubstituted alkyl, cycloalkyl, aralkyl or aryl group having from 1 to 18 carbon atoms. To this end tertiary bis-(hydroxymethyl)-phosphines of the general formula ##STR2## in which R has the meaning given above, are subjected to a thermal rearrangement reaction at temperatures higher than about 90.degree. C or at temperatures within the range -10.degree. and +250.degree. C, in the presence of a catalyst.