Process for preparing chloro-trifluoromethyl pyridines

Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...

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546346, C07D21326

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active

044489676

ABSTRACT:
3-Chloro-5-trifluoromethylpyridine and/or 2,3-dichloro-5-trifluoromethylpyridine are produced by selective vapor-phase chlorination of 3-trifluoromethylpyridine or 2-chloro-5-trifluoromethylpyridine in the presence of a copper catalyst.

REFERENCES:
patent: 4266064 (1981-05-01), Nishiyama et al.
patent: 4288600 (1981-09-01), Roberts et al.
patent: 4393214 (1983-07-01), Roberts et al.

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