Unsymmetrically substituted phospholane catalysts

US7834215B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Jens Holz · Kessin, DE
• Armin Boerner · Rostock, DE
• Odalys Esperanza Zayas Vargas · Rostock, DE
• Juan Jose Almena Perea · Marburg, DE
• Axel Monsees · Frankfurt, DE
• Renat Kadyrov · Rostock, DE
• Thomas Riermeier · Wemding, DE

Key dates

• Filing date: Mar 2, 2006
• Grant date: Nov 16, 2010
• Expiry date: May 9, 2026

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B01J31/2419
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention is based on new ligand systems of the general formula (I). These ligand systems can be used advantageously in transition metal-catalyzed asymmetric syntheses. Likewise encompassed are the transition metal complexes thus prepared, a process for preparing the ligands and the use of the complexes in asymmetric synthesis.