Manufacture of gamma-crotonolactone by carbonylation of glycidol
US4968817A · kind A · utility
17Cited by
6References
13Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 10, 1989 |
| Grant date | Nov 6, 1990 |
| Priority date | — |
| Expiry date | Jul 10, 2009 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D307/60
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for preparing a substituted or unsubstituted gamma-crotonolactone is provided which comprises reacting a substituted or unsubstituted glycidol of the formula: ##STR1## wherein R.sub.1, R.sub.2, R.sub.3 and R.sub.4 are the same or different and are H, alkyl of from 1 to 40 carbon atoms or aryl of from 6 to 18 carbon atoms, with carbon monoxide in the presence of a carbonylation catalyst to provide a corresponding beta-hydroxy lactone of the formula: ##STR2## and dehydrating said beta-hydroxy lactone to provide the corresponding gamma-crotonolactone of the formula: ##STR3##
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.