Process for preparing .alpha., .beta.-unsaturated carboxylic acid ester
US5075493A · kind A · utility
3Cited by
4References
7Claims
0Family size
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Key dates
| Filing date | Nov 23, 1990 |
| Grant date | Dec 24, 1991 |
| Priority date | — |
| Expiry date | Nov 23, 2010 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/327
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for producing .alpha., .beta.-unsaturated carboxylic acid ester which comprises catalytically reacting .alpha.-hydroxycarboxylic acid ester with crystalline aluminosilicate catalyst, and then catalytic reacting the resulting reaction product with solid acid catalyst. According to the process, .alpha., .beta.-unsaturated carboxylic acid ester of a high purity, and a high quality, without by-product, can be produced efficiently.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.