Oxidative demethylation of α- and γ-methyl-N-heterocyclonium salts: a new method for preparation of N-substituted-α- and -gamma;-oxo-N-heterocycles

Abstract

1-Substituted-2-methyl- and -4-methyl-pyridinium cations are converted by pentyl nitrite and sodium methoxide into 1-substituted-2- and -4-pyridones respectively.