Process for the racemoselective preparation of ansa-metallocenes
US7671223B2 · kind B2 · utility
3Cited by
3References
7Claims
0Family size
Assignee
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Key dates
| Filing date | May 4, 2005 |
| Grant date | Mar 2, 2010 |
| Priority date | — |
| Expiry date | Oct 27, 2026 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F17/00
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the racemoselective preparation of ansa-metallocene complexes of the formula (I)which comprises reacting a ligand starting compound of the formula (II)with a transition metal compound of the formula (III)(LB)yM1(NR3R4)Xx-1 (III)where
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.