Liquid phase preparation of 2-chloro-5-trifluoromethylpyridine a

Details Liquid phase preparation of 2-chloro-5-trifluoromethylpyridine a Liquid phase preparation of 2-chloro-5-trifluoromethylpyridine a

1979-11-19

1981-03-24

Rotman, Alan L.

Chemistry: electrical and wave energy

Processes and products

Processes of treating materials by wave energy

546345, B01J 1908, C07D21326

Patent

active

042578574

ABSTRACT:
2-Chloro-5-trifluoromethylpyridine or a 2-Chloro-5-perchlorofluoromethylpyridine is prepared by chlorination of 3-trifluoromethylpyridine or a 3-perchlorofluoromethylpyridine respectively in the liquid phase in the presence of ultra-violet radiation and/or in the presence of a free-radical initiator.

REFERENCES:
patent: 3173919 (1965-03-01), Johnston et al.
patent: 3418323 (1968-12-01), Johnston et al.

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