Production of (hydroxymethyl)-alkyl, cycloalkyl and aralkylphosphines

US4080384A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

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

Key dates

• Filing date: Mar 18, 1975
• Grant date: Mar 21, 1978
• Expiry date: Mar 18, 1995

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J2531/847
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Production of (hydroxymethyl)-alkyl, cycloalkyl or aralkylphosphines of the general formula: EQU R.sub.n P(CH.sub.2 OH).sub.3-n in which n stands for 1 or 2 and R stands for identical or different, substituted or unsubstituted alkyl, cycloalkyl or aralkyl radicals having from 1 to 18 carbon atoms. The compounds are made by reacting suitable mono- or di-alkyl, cycloalkyl or aralkylphosphines at atmospheric pressure and at temperatures lower than 40.degree. C with formaldehyde, paraformaldehyde or trioxane in the presence of polar organic solvents being inert with respect to the resulting reaction product, and separating the solvent from the reaction product.