Umemoto, Teruo published the artcileNovel base-initiated reactions of N-substituted pyridinium salts, COA of Formula: C6H5F4NO3S, the publication is Journal of Fluorine Chemistry (1996), 77(2), 161-168, database is CAplus.
Reaction of N-fluoropyridinium triflate with a base in dichloromethane gave 2-chloropyridine as the major product along with 2-pyridyl triflate and 2-fluoropyridine, regardless of the nature of the base. This base-initiated reaction was also shown to take place similarly in other halogenated alkanes, ethers, a nitrile, aromatics, a ketone, vinyl ethers, alcs. and trimethylsilyl acetate as solvents to give pyridine derivatives substituted with a solvent mol.(s) at the 2-position. N-(Trifluoromethanesulfonyloxy)- and (benzenesulfonyloxy)pyridinium salts were found to undergo the same base-initiated reaction. These reactions may be explained by a postulated singlet carbene produced through proton abstraction of N-substituted pyridinium salts. A similar carbene reaction may thus likely occur in the thermal decomposition of thiatriazole. The ab initio MO calculations revealed the structure and properties of the labile deprotonated N-fluoropyridinium cation and supported the carbene intermediate reaction mechanism rather than a pyridynium or pyridyl cation mechanism. Quarroz’s reports on the reactions of picolinic acid N-oxide and the reported reactions of pyridines with F2, CH3COOF or CsSO4F in solvents may be explained by this carbene mechanism.
Journal of Fluorine Chemistry published new progress about 107263-95-6. 107263-95-6 belongs to pyridine-derivatives, auxiliary class Fluorination reagent, name is 1-Fluoropyridiniumtriflate, and the molecular formula is C9H21NO3, COA of Formula: C6H5F4NO3S.
Referemce:
https://en.wikipedia.org/wiki/Pyridine,
Pyridine | C5H5N – PubChem