Preparing esters and carboxylic acids from lower olefins
US4518798A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 30, 1982 |
| Grant date | May 21, 1985 |
| Priority date | — |
| Expiry date | Sep 30, 2002 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C51/14
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Esters or carboxylic acids are prepared from olefins containing at least two carbon atoms by reacting the olefin with carbon monoxide in the presence of: PA1 (i) a first complex of a selected Lewis acid with the ester or carboxylic acid, whichever is the reaction product recovered; PA1 (ii) a second complex of the Lewis acid with an alcohol, if an ester is being prepared, or with water, if a carboxylic acid is being prepared; and PA1 (iii) a metal carbonyl compound containing a Group IB transition metal in the first oxidation state; and by recovering the reaction product(s). The preferred olefin is propylene, the preferred ester to be prepared is methylisobutyrate, the preferred metal is copper and the preferred Lewis acid is boron trifluoride.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.