Process for the preparation of bis(pentadienyl)-complexes of iron group metals
US7893290B1 · kind B1 · utility
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12Claims
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Key dates
| Filing date | Apr 13, 2010 |
| Grant date | Feb 22, 2011 |
| Priority date | — |
| Expiry date | Apr 13, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07F17/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for preparing organometallic complexes of the general formula (I):M(RPD)2 (I)in which M may be iron, ruthenium, or osmium, R is hydrogen or an alkyl group having about 1 to 4 carbon atoms, and PD is a cyclic or open chain dienyl system that is known to form a sandwich type complex is provided. The complexes having formula (I) have a metal purity of at least about 99.99%. The method involves reacting a M(III) trichloride hydrate with an HRPD compound and at least one reducing metal, such as aluminum, in an alcohol solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.