Process for the production of 1,2-bis (acyloxylates)
US5623086A · kind A · utility
10Cited by
1References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 29, 1995 |
| Grant date | Apr 22, 1997 |
| Priority date | — |
| Expiry date | Dec 29, 2015 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/26
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of 1,2-bis(acyloxyates) comprises acylation of epoxides with carboxylic anhydrides in the presence of a catalytic composition containing a tertiary amine and a carboxylic acid. Preferably, the carboxylic acid is a conjugate acid of the carboxylic anhydride. The carboxylic acid acts as a co-catalyst and its use in conjunction with the tertiary amine significantly increases the rate of reaction and results in higher selectivity. The catalytic composition may be prepared prior to acylation or in situ providing application versatility.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.