Oxidation of chiral non-racemic pyridinium salts to enantiopure 2- pyridone and 3-alkyl-2-pyridones

Article abstract of DOI:10.1016/S0957-4166(98)00151-7

Oxidation of chiral non-racemic pyridinium salt 1a and 3-alkyl pyridinium salts 1b and 1c with potassium ferricyanide in an alkaline medium provides a short and practical access to enantiomerically pure 2-pyridone (2a) and 3-alkyl-2-pyridones (2b and 2c)