Process for preparing optically pure active compounds

US7452998B2 · kind B2 · utility

Assignee

• NYCOMED GMBH · DE

Inventors

• Bernhard Kohl · Konstanz, DE
• Bernd Muller · Flintbek, DE
• Ralf Steffen Weingart · Konstanz, DE

Key dates

• Filing date: Dec 3, 2003
• Grant date: Nov 18, 2008
• Expiry date: Nov 24, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07B2200/07
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

The invention relates to a novel process for preparing an optically pure PPI having a sulfinyl structure using a chiral zirconium complex or a chiral hafnium complex.