Process for preparing 2,3-dichloro-5-trichloromethylpyridine

Details Process for preparing 2,3-dichloro-5-trichloromethylpyridine Process for preparing 2,3-dichloro-5-trichloromethylpyridine

1985-02-06

1985-11-26

Schwartz, Richard A.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546291, 546300, 546302, C07D21326

Patent

active

045555753

ABSTRACT:
A liquid phase process for preparing 2,3-dichloro-5-trichloromethylpyridine, said process consisting essentially of contacting a 2,3-disubstituted-5-methylpyridine of formula ##STR1## where X and Y are halogen atoms selected from bromine and chlorine, in a dry inert organic liquid medium under the influence of UV light, whereby the methyl group of the substituted methyl pyridine (1) is trichlorinated to give 2,3-dichloro-5-trichloromethylpyridine.

REFERENCES:
patent: 3244722 (1966-04-01), Johnston
patent: 3974166 (1976-08-01), Mutterer

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