Process for making 5-trifluoromethyl pyridone
US4230864A · kind A · utility
2Cited by
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7Claims
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Inventor
Key dates
| Filing date | Jan 29, 1979 |
| Grant date | Oct 28, 1980 |
| Priority date | — |
| Expiry date | Jan 29, 1999 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D309/38
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
The chemical compound 5-trifluoromethyl-2-pyrone and a process for preparing a 5-trifluoromethyl-2-oxy compound of the formula ##STR1## wherein A is oxygen or nitrogen bearing a hydrogen, comprising the step of reacting an amount of the 5-carboxy precursor of the compound with a suitable fluorinating agent to selectively transform the 5-carboxy group without altering the oxygen function in the 2-position of the ring.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.