Gold‐Catalyzed Synthesis of Glyoxals by Oxidation of Terminal Alkynes: One‐Pot Synthesis of Quinoxalines

Abstract

From terminal alkynes to glyoxals: Terminal alkynes can be oxidized under mild conditions by the use of an N-oxide in the presence of a gold catalyst. The intermediate glyoxal derivatives can be transferred in a one-pot procedure to substituted quinoxalines (see scheme).