Preparation of 2,3-dichloro-5-trichloromethylpyridine

Details Preparation of 2,3-dichloro-5-trichloromethylpyridine Preparation of 2,3-dichloro-5-trichloromethylpyridine

1981-03-12

1982-05-25

Rotman, Alan L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21326

Patent

active

043318118

ABSTRACT:
Preparation of 2,3-dichloro-5-trichloromethylpyridine in high yields and purity by chlorinating 2-chloro-5-trichloromethylpyridine at 70.degree. to 250.degree. C. with chlorine in the presence of a catalyst containing one or more molybdenum, tungsten or ruthenium compounds.

REFERENCES:
patent: 3186994 (1965-06-01), Johnston et al.
patent: 3244722 (1966-04-01), Johnston et al.
patent: 3420833 (1969-01-01), Taplin
patent: 3538100 (1970-11-01), Smith
patent: 3732230 (1973-05-01), Brewer et al.
patent: 4256894 (1981-03-01), Dietsche et al.

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