N-fluoropyridinium salt and process for preparing same

C - Chemistry – Metallurgy – 07 – D

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C07D 213/89 (2006.01) C07B 39/00 (2006.01) C07C 17/093 (2006.01) C07C 17/12 (2006.01) C07C 37/62 (2006.01) C07C 41/22 (2006.01) C07C 45/30 (2006.01) C07C 45/51 (2006.01) C07C 45/54 (2006.01) C07C 45/63 (2006.01) C07C 49/167 (2006.01) C07C 49/457 (2006.01) C07C 49/463 (2006.01) C07C 49/693 (2006.01) C07C 49/697 (2006.01) C07C 51/363 (2006.01) C07C 67/307 (2006.01) C07C 231/12 (2006.01) C07C 253/30 (2006.01) C07C 269/06 (2006.01) C07C 315/04 (2006.01) C07C 319/20 (2006.01) C07D 219/02 (2006.01) C07D 491/04 (2

Patent

CA 1288777

ABSTRACT A pyridine compound is reacted with fluorine together with a Br?nsted acid compound or a 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-compound such as thyroid inhibitor,

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