Catalyst/Additive Free Oxidation of Benzyl Bromides to Benzaldehydes

Abstract

An effective approach for the synthesis of aryl aldehydes from the corresponding benzylbromides was accomplished. Without need of additional additives or stoichiometric oxidants, this environmental friendly and milder version of Kornblum oxidation simply utilized the irradiation of visible light in DMSO under O2, and is compatible with the substrate with different functional groups.