Primary alkyl and benzyl amines are converted by 2,4,6-triphenylpyrylium fluoride into the corresponding pyridinium fluorides which thermolys, smoothly at 100–130°C to give alkyl and benzyl fluorides, the latter in yields of 60–70%, the former somewhat lower yields.
A. R. Katritzky, A. Chermprapai and R. C. Patel, J. Chem. Soc., Chem. Commun., 1979, 238a DOI: 10.1039/C3979000238A
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