Photochemical aerobic sulfonylation–cyclization–selenylation to indole-fused medium-sized N-heterocycles in 2-Me-THF

We report a novel visible-light-induced sulfonylation cyclization and aerobic selenylation reaction for the rapid construction of highly functionalized indole-fused medium-sized diazepinones with biomass feedstock 2-Me-THF as the medium.