Silver-mediated synthesis of indolizines via oxidative C–H functionalization and 5-endo-dig cyclization

An efficient strategy for the synthesis of indolizines from readily available starting materials via oxidative C–H functionalization and 5-endo-dig cyclization in one step has been demonstrated. This protocol represents wide substrate scope, high functional group tolerance, and selectivity. The structure of the product was confirmed by X-ray crystallographic studies. Ag2CO3 required of this tandem reaction can be recycled and reused after undergoing oxidative reaction.