K2S2O8-promoted one-pot synthesis of N-substituted quinazolinones via tandem annulation using DMSO and terminal alkynes

A three-component reaction involving 2-aminobenzamide, phenylacetylene, and DMSO in the presence of K₂S₂O₈ as an oxidant has been developed to access a wide range of N-substituted quinazolinones. In this methodology,...