A photocatalytic tandem cyclization of o-alkenylbenzaldehydes using pyridinium salts as the amination reagent is described.A variety of valuable seven-membered nitrogenous heterocyclic skeletons are prepared in modest...A photocatalytic tandem cyclization of o-alkenylbenzaldehydes using pyridinium salts as the amination reagent is described.A variety of valuable seven-membered nitrogenous heterocyclic skeletons are prepared in modest to excellent yields in concise one-step.This transformation features mild reaction conditions and exceptional functional group tolerance.In addition,combining control experiments and density functional theory(DFT)calculations on the mechanism can explain the reaction selectivity.展开更多
基金the National Natural Science Foundation of China(21632003,21871116)the Key Program of Gansu Province(17ZD2GC011)the‘‘111’’Program from the MOE of China。
文摘A photocatalytic tandem cyclization of o-alkenylbenzaldehydes using pyridinium salts as the amination reagent is described.A variety of valuable seven-membered nitrogenous heterocyclic skeletons are prepared in modest to excellent yields in concise one-step.This transformation features mild reaction conditions and exceptional functional group tolerance.In addition,combining control experiments and density functional theory(DFT)calculations on the mechanism can explain the reaction selectivity.
