Cycloaliphatic/aromatic diphosphines and use thereof in catalysis

US7081533B2 · kind B2 · utility

Assignee

• Degussa AG · DE

Inventors

• Boris Bosch
• Axel Monsees · Frankfurt, DE
• Uwe Dingerdissen · Seeheim-Jugenheim, DE
• Paul Knochel · Marburg, DE
• Eike Hupe · Schwanau, DE

Key dates

• Filing date: Aug 17, 2001
• Grant date: Jul 25, 2006
• Expiry date: Jan 8, 2022

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02E10/549
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The present invention concerns novel unsymmetrical chiral diphosphines of a mixed aliphatic-aromatic type and processes for synthesizing them, complexes of these compounds and their use as catalysts.