Selective dehalogenation
USRE28865E · kind E · reissue
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Key dates
| Filing date | Jul 30, 1975 |
| Grant date | Jun 15, 1976 |
| Priority date | — |
| Expiry date | Jul 30, 1995 |
Classification
- Technology area (CPC —)General
Abstract
An improved process for removal of halogen from the pyrimidine ring only of a compound of the formula ##SPC1## Wherein PA1 At least one of X is chlorine or bromine, the remainder hydrogen; .[.or lower alkyl.]. PA1 Q is chlorine or fluorine; and PA1 N is an integer from 1 to 5. The dehalogenation process yields an .alpha.-halophenyl-.alpha.-phenyl-5-pyrinidylmethane of 95 percent or higher purity, which compound is useful as an intermediate in the preparation of the corresponding .alpha.-halophenyl-.alpha.-phenyl-5-pyrinidylmethanol, useful as an agricultural fungicide.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.