Method for producing trivalent organophosphorus compounds

US7767861B2 · kind B2 · utility

Assignee

• Evonik Oxeno GmbH · DE

Inventors

• Dagmara Ortmann · Brig, CH
• Klaus-Diether Wiese · Haltern am See, DE
• Oliver Moller · Recklinghausen, DE
• Dirk Fridag · Haltern am See, DE

Key dates

• Filing date: Oct 29, 2004
• Grant date: Aug 3, 2010
• Expiry date: Aug 3, 2025

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F9/65744
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a process for preparing organophosphites, organophosphonites and organophosphinites by condensing phosphorus trihalides or organophosphorus halides with organic compounds bearing hydroxyl groups in the presence of polymeric basic ion exchange resins.The process according to the invention makes possible in a simple manner the preparation of trivalent organophosphorus compounds which may be used, for example, as ligands in rhodium complexes which may be used as a catalyst in hydroformylation.