Synthesis of 2,3-bis-organochalcogenyl-benzo[<i>b</i>]chalcogenophenes promoted by Oxone®

Abstract

We report here an alternative and tunable metal-free synthesis of benzo[<italic>b</italic>]chalcogenophenes <italic>via</italic> the electrophilic cyclization of 2-functionalized chalcogenoalkynes promoted by Oxone®.