Chlorine exchange for fluorine in ring-fluorinated pyridine comp

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

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546346, C07D21326

Patent

active

045461929

ABSTRACT:
Ring-fluorinated pyridine compounds are contacted with a chlorinating agent, preferably in the presence of a catalyst, under favorable conditions to yield pyridine compounds having a chlorine substituted in the ring-fluorine position(s).

REFERENCES:
patent: 3370096 (1968-02-01), Donaldson et al.
patent: 4172203 (1979-10-01), Ison
patent: 4493932 (1985-01-01), Werner
Yakobson et al., J. Org. Chem. U.S.S.R., vol. 6, No. 7, (1970), pp. 1661-1662.

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