Metathesis of olefins using ruthenium based catalytic complexes
US9816051B2 · kind B2 · utility
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Key dates
| Filing date | Mar 18, 2013 |
| Grant date | Nov 14, 2017 |
| Priority date | — |
| Expiry date | Mar 18, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10G2300/1014
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A self-metathesis process for the production of unsaturated dicarboxylic fatty diacids and/or unsaturated dicarboxylic fatty diesters, wherein unsaturated carboxylic fatty acids and/or esters of unsaturated carboxylic fatty acids are reacted in the presence of at least one defined ruthenium based catalyst compound. A catalyst enhancer compound selected from a sacrificial catalyst or a non-catalyst enhancer may also be used. The process exhibits improved reaction times and/or the catalyst can be used at very low concentrations.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.