Preparation of .alpha.-carbonylphosphine oxides

US5504236A · kind A · utility

Assignee

• BASF SE

Inventors

• Martin Fischer · Ludwigshafen, DE
• Eckhard Hickmann · Schifferstadt, DE
• Rudolf Kropp · Schifferstadt, DE
• Jochen Schroeder · Lambsheim, DE
• Beate Trentmann · Mannheim, DE

Key dates

• Filing date: Sep 7, 1993
• Grant date: Apr 2, 1996
• Expiry date: Sep 7, 2013

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/5337
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The preparation of .alpha.-carbonylphosphine oxides by oxidizing an .alpha.-hydroxyalkyl phosphine oxide with an organic hydroperoxide or of an organic peroxy acid in the presence of a compound of a Group IV to Group VIII metal in the periodic table, and novel .alpha.-hydroxybenzyl phosphine oxides. .alpha.-Carbonylphosphine oxides are used as photoinitiators for polymerizable compositions.