Process for producing 3-chloro-5-trifluoromethylpyridines

Details Process for producing 3-chloro-5-trifluoromethylpyridines Process for producing 3-chloro-5-trifluoromethylpyridines

1982-10-14

1984-12-25

Jiles, Henry R.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21172, C07D21184, C07D21361

Patent

active

044905343

ABSTRACT:
A process for producing a 3-chloro-5-trifluoromethylpyridine derivative comprises reacting a 5-trifluoromethylpyridine derivative having a hydrogen atom at 3-position with chlorine. The process is characterized by reacting said 5-trifluoromethylpyridine derivative with chlorine in a vapor phase in the presence of a catalyst selected from the group consisting of activated carbon and a chloride of a metal element selected from the group consisting of iron, antimony, copper and zinc.

REFERENCES:
patent: 3370062 (1968-02-01), Corran
patent: 4241213 (1980-12-01), Nishiyama et al.
patent: 4288599 (1981-09-01), Nishiyama et al.
patent: 4331811 (1982-05-01), Werner et al.

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