Catalytic systems having extended duration and conservation for the metathesis of olefins
US4837188A · kind A · utility
5Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 18, 1988 |
| Grant date | Jun 6, 1989 |
| Priority date | — |
| Expiry date | Mar 18, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C2531/34
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
Improved catalytic systems of long active duration, comprising initially (a) a tungsten compound, (b) an organometallic compound and (c) a partially or totally fluorinated organic compound. Process of stabilization of these catalytic systems, comprising dissolving (a) in an organic solvent, contacting (b) with (a), agitation and heating at 0.degree. to 100.degree. C. for 0.5 to 60 minutes, then introduction of (c) into the mixture of (a) and (b). Use of these stabilised catalytic systems for the metathesis of olefins which carry functional groups or do not carry such groups.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.