Metathesis of olefins with a catalyst based upon a tungsten complex
US4654462A · kind A · utility
9Cited by
6References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 6, 1986 |
| Grant date | Mar 31, 1987 |
| Priority date | — |
| Expiry date | Feb 6, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2531/22
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Improved process of metathesis of olefins by contact of one or more olefins with a catalyst comprising a tungsten complex with two phenoxy groups, carrying substituents and four other ligands, the complex carrying as coordination groups a halogen atom, an alkyl radical and a carbene. The catalyst preferably is of the formula ##STR1## where X is halogen, R is hydrocarbon or an electronegative group or atom, R.sup.1 is alkyl and R.sup.2 and R.sup.3 are individually hydrogen or alkyl groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.