1-Substituted 4,6-Diphenyl-2-methylthiopyridinium Salts as Versatile Intermediates in Organic Synthesis: Conversion of Arylmethanamines to Arylacetonitriles, Aromatic Aldehydes, or Arylmethane Nitrate Esters - Fresneda, P M; Lidon, M J; Molina, P; Vilaplana, M J (Synthesis, 1981)