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
Preparation and thermal behaviour of 1-substituted 2-dicyanomethylene-1,2-dihydropyridines: Synthesis of 2-pyridyl malononitriles.
作者:P. Molina、A. Lorenzo
DOI:10.1016/s0040-4039(00)94206-0
日期:1983.1
1-Substituted 2-methylthio-4,6-diphenylpyridinium iodides () react with malononitrile under the influence of bases to give 1-substituted 1,2-dihydropyridines (), which by thermal treatment can be converted into 2-pyridyl malononitriles (4).