Preparation of diesters of hexenedioic acid
US4925973A · kind A · utility
6Cited by
3References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 13, 1989 |
| Grant date | May 15, 1990 |
| Priority date | — |
| Expiry date | Jun 13, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C69/593
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Diesters of hexene-1,6-dioic acid are efficiently and selectively prepared by reacting carbon monoxide and an alcohol with at least one diacyloxylated butene compound, in the presence of (a) a catalytically effective amount of a palladium-based catalyst and (b) a quaternary onium chloride or bromide of nitrogen or phosphorus.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.