Production of methylphosphine oxides

US3980711A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Bernd Lippsmeier
• Klaus Hestermann · Lechenich, DE
• Gero Heymer · Lechenich, DE

Key dates

• Filing date: Feb 12, 1975
• Grant date: Sep 14, 1976
• Expiry date: Feb 12, 1995

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/53
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Methylphosphine oxides of the general formula (I) ##EQU1## are produced from hydroxymethylphosphines of the general formula (II) ##EQU2## in which formulae R and R' each stand for identical or different alkyl-, cycloalkyl-, aralkyl- or aryl groups having from 1 to 18 carbon atoms, or carrying substituents being inert under the reaction conditions. The methylphosphine oxides are more particularly produced by subjecting the hydroxymethylphosphines to a rearrangement reaction with the aid of radical-yielding compounds.