Process for producing a .beta.-trifluoromethylpyridine

Details Process for producing a .beta.-trifluoromethylpyridine Process for producing a .beta.-trifluoromethylpyridine

1982-03-09

1983-11-22

Rotman, Alan L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

546346, C07D21326

Patent

active

044170556

ABSTRACT:
A pyridine derivative having the formula ##STR1## wherein X.sup.2 and Y.sup.2 represents hydrogen atom or chlorine atom is produced by reacting a pyridine compound having the formula ##STR2## wherein X.sup.1 and Y.sup.1 represent hydrogen atom or chlorine atom, with chlorine and anhydrous hydrogen fluoride by a vapor phase reaction in the presence of a catalyst at a temperature of 250.degree. to 600.degree. C. using as the catalyst a fluoride of a metal selected from the group consisting of copper, vanadium, tin, bismuth, zirconium, magnesium, barium, zinc, calcium, potassium and sodium.

REFERENCES:
patent: 4259496 (1981-03-01), Whitaker et al.
patent: 4266064 (1981-05-01), Nishiyama et al.
patent: 4288599 (1981-09-01), Nishiyama et al.

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