Acid accelerated hydrocarboxylation
US4788334A · kind A · utility
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6Claims
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Key dates
| Filing date | Dec 10, 1986 |
| Grant date | Nov 29, 1988 |
| Priority date | — |
| Expiry date | Dec 10, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/313
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the production of carboxylic acids by the hydrocarboxylation of olefinically unsaturated alkenes or esters using a rhodium catalyst, an iodide promoter, a solvent selected from the class consisting of methylene chloride, 1,2-dichloroethane, and C.sub.6 to C.sub.9 aromatic solvents, and an accelerator which is an acid having a pKa in the range of 4.2 to 5.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.