Gold(I)-Catalyzed Diketonization of Alkynes and Its Application for the One-Pot Synthesis of Quinoxaline Derivatives

A gold(I)-catalyzed oxidative diketonization of alkynes by water in the presence of Selectfluor has been achieved. The application of the present protocol for the one-pot synthesis of quin­oxaline derivatives from alkynes and o -phenylenediamines has also been successful.