Electro-Oxidative C3-Selenylation of Pyrido[1,2- a ]pyrimidin-4-ones.

In this work, we achieved a C3-selenylation of pyrido[1,2- a ]pyrimidin-4-ones using an electrochemically driven external oxidant-free strategy. Various structurally diverse seleno-substituted N -heterocycles were obtained in moderate to excellent yields. Through radical trapping experiments, GC-MS analysis and cyclic voltammetry study, a plausible mechanism for this selenylation was proposed.