Selective preparation of racemic ansa-metallocene complexes

US5892081A · kind A · utility

Assignee

• BASF SE

Inventors

• Carsten Suling · Bischofswerda, DE
• Mario Huettenhofer · Konstanz, DE
• Hans-Herbert Brintzinger · Frauenfeld, CH
• Frank Schaper · Konstanz, DE

Key dates

• Filing date: Jul 13, 1998
• Grant date: Apr 6, 1999
• Expiry date: Jul 13, 2018

Classification

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

Abstract

The present invention relates to a process for preparing racemic ansa-metallocene complexes I ##STR1## tin compounds II ##STR2## and a process for preparing tin compounds II. R.sup.1 to R.sup.9, M, and X are defined herein.