4-Chloro-4-alkoxy-1,1,1-trifluoro-2-butanones, their preparation and their use in preparing 4-alkoxy-1,1,1-trifluoro-3-buten-2-ones
US7528286B2 · kind B2 · utility
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4Claims
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Key dates
| Filing date | Jun 27, 2008 |
| Grant date | May 5, 2009 |
| Priority date | — |
| Expiry date | Jun 27, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07C45/65
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
4-Chloro-4-alkoxy-1,1,1-trifluoro-2-butanones, prepared by reacting alkyl vinyl ethers with trifluoroacetyl chloride, are useful for preparing 4-alkoxy-1,1,1-trifluoro-3-buten-2-ones.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.