Process for the carbonylation of allenically unsaturated compounds
US4739110A · kind A · utility
21Cited by
9References
16Claims
0Family size
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Key dates
| Filing date | Dec 27, 1985 |
| Grant date | Apr 19, 1988 |
| Priority date | — |
| Expiry date | Dec 27, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/38
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the carbonylation of an allenically unsaturated compound with CO in the presence of water, an alcohol and/or a carboxylic acid, which process is carried out in the presence of a catalyst formed by combining: PA0 (a) a compound of divalent palladium, PA0 (b) at least 15 mol of an organic phosphine per gram atom of divalent palladium, and PA0 (c) a protonic acid having a pK.sub.a greater than 1.5 and/or a carboxylic acid having a pK.sub.a not greater than 1.5, both measured at 18.degree. C. in aqueous solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.