Preparation of carboxylic acids from internal olefins
US4158668A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Oct 12, 1977 |
| Grant date | Jun 19, 1979 |
| Priority date | — |
| Expiry date | Oct 12, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present process is suitable for preparing carboxylic acids wherein greater than 50 mole percent of the carboxylate groups are at the terminal position which comprises bringing together in a reaction zone an olefin or mixture of olefins wherein greater than 50 mole percent of the olefin has unsaturation at other than the terminal position, water and carbon monoxide in the presence of a cobalt catalyst and a pyridine-type promoter, preferably pyridine, in a mole ratio of promoter to catalyst between about 5:1 and 15:1, at pressures from about 70 kilograms per square centimeter to about 300 kilograms per square centimeter, at temperatures between about 180.degree. C. and about 220.degree. C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.