Process for the preparation of a chiral, stereorigid metallocen compound
Abstract
Abstract Translated from German Durch Umsetzung einer Silylindenylverbindung der Formel II [R¹R²Si(indenyl)2]Me ? (II) (Me¹ = Alkalimetall) mit einem Titan- Zirkon- oder Hafniumtetrahalogenid erhält man eine chirale, stereorigide Metallocenverbindung der Formel I [R¹R²Si(indenyl)2]Me²X2 (I) (Me² = Ti, Zr, Hf), welche als fast reines Racemat anfällt und als Katalysatorkomponente für die Polymerisation von 1-Olefinen dienen kann. By reacting a silylindenyl compound of the formula II [R¹R²Si (indenyl) 2] Me? (II) (Me¹ = alkali metal) with a titanium, zirconium or hafnium tetrahalide gives a chiral, stereorigid metallocene compound of the formula I [R¹R²Si (indenyl) 2] Me²X2 (I) (Me² = Ti, Zr, Hf), which as almost pure racemate is obtained and can serve as a catalyst component for the polymerization of 1-olefins.
Inventors
- 👤 Jürgen Dr. Rohrmann
- 👤 Wolfgang Anton Prof. Dr. Hermann
Bibliographic Details
Claims Analysis
Total Claims: 0References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
Maintenance schedule is calculated for granted US utility patents.