Process for the preparation of α-chloroketones from alkyl esters
US6924397B2 · kind B2 · utility
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2References
47Claims
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Assignee
Inventors
Key dates
| Filing date | Oct 22, 2003 |
| Grant date | Aug 2, 2005 |
| Priority date | — |
| Expiry date | Oct 22, 2023 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C49/255
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The present invention relates to a process for the preparation of α-chloroketones from readily available alkyl esters by the reaction of a sulfoxonium ylide on said alkyl esters to generate a keto sulfoxonium ylide that is in turn treated with anhydrous HCl.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.