Primary amines with 2,4,6-triphenylpyrylium perchlorate give 1-substituted pyridinium perchlorates which with potassium ethyl xanthate readily produce S-alkyl-O-ethyl dithiocarbonates. Primary amines with 2.4,6-triphenylpyrylium thiocyanate form 1-substituted- 2,4,6-triphenylpyridinium thiocyanates which thermolyse smoothly to the corresponding alkyl and aralkyl thiocyanates
A. R. Katritzky, U. Gruntz, N. Mongelli and M. C. Rezende, J. Chem. Soc., Perkin Trans. 1, 1979, 1953 DOI: 10.1039/P19790001953
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