N-Heterocyclic carbene catalyzed esterification of aromatic aldehydes with alcohols under aerobic conditions

Abstract

A simple, organocatalytic procedure for the direct oxidative esterification of a variety of aromatic aldehydes with alcohols has been described that affords the corresponding aromatic esters in high yields. The method employs N-heterocyclic carbenes as catalysts and molecular O₂ as an oxidant under ambient conditions.