N-fluoropyridinium salt and process for preparing same

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

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546 22, 546116, 546102, 546153, 546155, 546157, 546168, 546170, 546180, 546286, 546287, 546321, 546326, 546345, 546346, 546347, C07F 958, C07D491048, C07D21904, C07D21355

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049963201

ABSTRACT:
A pyridine-compound is reacted with fluorine together with a Bronsted acid-compound or Lewis acid to form a N-fluoropyridinium salt which is very active to other compounds but is very selective for the preparation of a desired product and this product is very useful for a fluorine-introducing agent which makes it useful for the preparation of fluoro-compounds such as thyroid inhibitor.

REFERENCES:
March, Advanced Organic Chemistry, Reactions, Mechanisms and Structure, Second Edition, pp. 460-468 McGraw-Hill Publishers 1977.
Umemoto et al., Chem. Abstracts, vol. 106, (15), Abst. No., 106:119,640f, Apr. 13, 1987.
"The Chemistry of Heterocyclic Compounds a Series of Monographs" Arnold Weissberger, Consulting Editor.
Vol. 14, Pyridine and Its Derivatives, Parts 1-4, ed by Erwin Clingsbert, 1960 (Part 1), 1961 (Part 2), 1962 (Part 3), 1964 (Part 4) Interscience Publishers, Inc., New York.
Vol 14, Pyridine and Its Derivatives, Supplement Parts 1-4, ed by R. A. Abramovitch, 1974 (Part 1-3, 1975 (Part 4), John Wiley & Sons, Inc., New York.
Vol 14, Pyridine and its Derivatives, Supplement Part 5, ed by George R. Newkome, 1984, John Wiley & Sons, Inc. New York.

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