Low pressure rhodium catalyzed hydroformylation of olefins
US4871878A · kind A · utility
22Cited by
14References
19Claims
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Assignee
Inventors
Key dates
| Filing date | Jul 27, 1988 |
| Grant date | Oct 3, 1989 |
| Priority date | — |
| Expiry date | Jul 27, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/50
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The hydroformylation of olefins with rhodium complex catalysts is described. The catalysts employed comprise a rhodium complex with at least one phosphine having a specified structure, e.g., tris(benzyl)phosphine. Preferred phosphines have a pKa in the range of about 3.5 up to 5.3 and a cone angle in the range of about 160 up to 195.degree.. Hydroformylation reactions at relatively low temperatures and pressure and yet with high rates of reaction and high selectivity to aldehyde product are obtained by the practice of the present invention.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.