Method for selective production of racemic metallocene complexes

US6262286A · kind A · utility

Assignee

• BASF SE

Inventors

• Heike Gregorius · Kastellaun, DE
• Carsten Suling · Bischofswerda, DE
• Wolfgang Bidell · Mutterstadt, DE
• Hans-Herbert Brintzinger · Frauenfeld, CH
• Hans-Robert-Hellmuth Damrau · Konstanz, DE
• Armin Weber · Markdorf, DE

Key dates

• Filing date: Mar 20, 2000
• Grant date: Jul 17, 2001
• Expiry date: Mar 20, 2020

Classification

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

Abstract

Racemic metallocene complexes are prepared by reacting bridged or unbridged transition metal complexes with cyclopentadienyl derivatives of alkali metals or alkaline earth metals and, if desired, subsequently replacing the aromatic ligands.