Carbonylation of allylic ethers to esters
US5004568A · kind A · utility
2Cited by
10References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1985 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Oct 3, 2005 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/37
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method is disclosed for the production of esters by reaction of an allylic ether with carbon monoxide in the presence of a catalytically effective amount of a Group VIII noble metal catalyst and a Group IB metal halide to obtain esters. The Group IB metal halide is present in an amount sufficient to prevent the catalyst from being converted into a Group VIII metal during the reaction. When the reaction is conducted in the presence of a quaternary ammonium salt the ester may be extracted by solvent extraction to minimize catalyst decomposition caused when extractive distillation is used to separate the ester.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.