Process for producing 5-chloro-.beta.-trifluoromethylpyridines

Details Process for producing 5-chloro-.beta.-trifluoromethylpyridines Process for producing 5-chloro-.beta.-trifluoromethylpyridines

1982-07-26

1983-12-13

Love, Ethel G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D21326, C07D21361

Patent

active

044206186

ABSTRACT:
5,6-Dichloro-.beta.-trifluoromethylpyridine or 2,5,6-trichloro-.beta.-trifluoromethylpyridine is produced by reacting 6-chloro-.beta.-trifluoromethylpyridine or 2,6-dichloro-.beta.-trifluoromethylpyridine with chlorine gas to chlorinate the 5-position of pyridine nucleus thereof:

REFERENCES:
patent: 3418323 (1968-12-01), Johnston et al.
patent: 3538100 (1970-11-01), Smith
patent: 4184041 (1980-01-01), Nishiyama et al.
patent: 4227001 (1980-10-01), Dietsche et al.
patent: 4257857 (1981-03-01), Whittaker et al.
patent: 4288600 (1981-09-01), Roberts et al.
patent: 4309548 (1982-01-01), Wilson et al.
patent: 4331811 (1982-05-01), Werner et al.
PCT Patent Publication GB 78/00008.

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