Patent EP0320762B1 successfully refreshed from Google Patents.
EP0320762B1
Expired / Lapsed
EP
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Process for the preparation of a chiral, stereorigid metallocen compound
Assignee: Hoechst AG
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Filing: 1988-12-07
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Granted: 1996-03-27
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Expires: 2008-12-07
Abstract
No abstract record available.
Inventors
- 👤 Jürgen Dr. Rohrmann
- 👤 Wolfgang Anton Prof. Dr. Hermann
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 22:47
CPC Classifications
C; C07; C07F; C07F17/00; Y; Y10; Y10S; Y10S526/00; Y10S526/943
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
128 words
A process for the preparation of a chiral, stereorigid metallocene compound of the formula I [R¹R²Si(indenyl)₂]Me²X₂ (I) in which R¹ and R² are identical or different and denote a C₁- to C₂₀-alkyl group, a C₂- to C₂₀-alkenyl group, a C₆- to C₂₀-aryl group, a C₇- to C₂₀-alkylaryl group or a C₇- to C₂₀-aralkyl group, Me² is titanium, zirconium or hafnium, and X denotes a halogen atom, which comprises reacting a compound of the formula II [R¹R²Si(indenyl)₂]Me 1 2 in which R¹ and R² have the abovementioned meaning and Me¹ is an alkali metal, with a compound of the formula III Me²X₄ (III) in which Me² and X have the abovementioned meaning, at a temperature of from -78°C to +25°C in an inert solvent for 10 to 1000 minutes.
References Cited (Backward Citations)
No citation records indexed.
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