Process for producing delta-lactones
US7683187B2 · kind B2 · utility
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10References
17Claims
0Family size
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Key dates
| Filing date | Apr 20, 2007 |
| Grant date | Mar 23, 2010 |
| Priority date | — |
| Expiry date | Sep 8, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D309/30
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for preparing a lactone. The process comprises the steps of reacting an aldehyde with an organic halide in a carbon chain extension reaction to form an alcohol compound comprising a functional group capable of allowing for carbonylation of said alcohol compound, and then reacting said alcohol compound in a carbonylation reaction to form an hydroxycarboxylic acid; and cyclizing the hydroxycarboxylic acid to produce the lactone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.