Preparing oxalic acid esters
US4230881A · kind A · utility
10Cited by
4References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 1978 |
| Grant date | Oct 28, 1980 |
| Priority date | — |
| Expiry date | Apr 6, 1998 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C69/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for the preparation of organic esters of oxalic acid by reaction of carbon monoxide under pressure with the corresponding alcohol is disclosed, the improvement consisting in the use of a quite particular catalyst system. The catalyst is a binary system in which the principal member is a palladium complex and the co-catalyst is a compound, preferably an organic compound having an acidic nature, no matter how weak.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.