Process for the preparation of carboxylic acids or the corresponding esters in the presence of a soluble catalyst based on iridium and iodides
US5773642A · kind A · utility
14Cited by
4References
21Claims
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Key dates
| Filing date | May 14, 1997 |
| Grant date | Jun 30, 1998 |
| Priority date | — |
| Expiry date | May 14, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/12
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Preparation of carboxylic acids or corresponding esters by reacting an alcohol with carbon monoxide in the presence of an iridium catalyst and a halogen promoter. The reaction involves a reaction mixture composed of more than 0% to 10% water, more than 0% to 10% halogen promoter, 2% to 40% of an ester corresponding to the reaction of alcohol with the acid, soluble iodides in an amount such that the atomic ratio of iodides to iridium varies between more than 0 and 10, the carboxylic acid being used as the reaction solvent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.