Process for producing cyclic carbonic esters
US6054596A · kind A · utility
8Cited by
5References
13Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 17, 1999 |
| Grant date | Apr 25, 2000 |
| Priority date | — |
| Expiry date | Mar 17, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D317/36
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Reacting a diol (1) with a carbonic ester (2) to produce a cyclic carbonic ester (3) using a salt of a weak acid with an alkaline metal or alkaline earth metal as a catalyst. The diol (1) contains diols having an asymmetric carbon atom. The reaction mixture is neutralized and distilled to obtain a cyclic carbonic ester. Cyclic carbonic esters are produced using an easily accessible and easy to handle reactant, with good yield and under mild and moderate conditions. ##STR1##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.