Method for producing an alkyl 3-hydroxybutyrate
US9255059B2 · kind B2 · utility
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42References
48Claims
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Key dates
| Filing date | Aug 2, 2013 |
| Grant date | Feb 9, 2016 |
| Priority date | — |
| Expiry date | Aug 2, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C67/46
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A method for making an alkyl 3-hydroxybutyrate is provided. The method can include reacting an alkyl alcohol with diketene to form an alkyl acetoacetate and then hydrogenating the alkyl acetoacetate to form the alkyl 3-hydroxybutyrate. The method of the present invention may also include separating one or more impurities an alkyl acetoacetate stream and subjecting the purified acetoacetate mixture to hydrogenation to form the alkyl 3-hydroxybutyrate. Methods of the present invention can be carried out on a lab, pilot, or commercial scale.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.