Process for the preparation of phenyl 2-pyrimidinyl ketones and their novel intermediates
US7772395B2 · kind B2 · utility
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12Claims
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Key dates
| Filing date | Oct 28, 2005 |
| Grant date | Aug 10, 2010 |
| Priority date | — |
| Expiry date | Nov 11, 2027 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC07D239/52
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
A process for the preparation of the compounds of the formula (I), or salts thereof, wherein R represents a hydrogen atom or difluoromethanesulfonyl, characterized in that compounds of the formula (II), or salts thereof, wherein R has the same definition as aforementioned, and n represents 0 or 1, are reacted in the presence of hydrogen peroxide and acetic acid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.