Process for converting the achiral meso form or the racemate of an ansa-metallocene complex or mixtures thereof into one of its enantiomers

US5840950A · kind A · utility

Assignee

• BASF SE

Inventors

• David Fischer · Breunigweiler, DE
• Franz Langhauser · Bad Dürkheim, DE
• Rainer Stürmer · Bad Dürkheim, DE
• Jurgen Kerth · Eisenberg (Pfalz), DE
• Gunther Schweier · Osthofen, DE
• Hans-Herbert Brintzinger · Frauenfeld, CH
• Katrin Schmidt · Konstanz, DE

Key dates

• Filing date: Jan 8, 1998
• Grant date: Nov 24, 1998
• Expiry date: Jan 8, 2018

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S526/943
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

In a process for converting the achiral meso form or the racemate of an ansa-metallocene complex or a mixture thereof into one of its enantiomers, the conversion is carried out photochemically in the presence of an enantiomerically pure auxiliary reagent.