Electrochemical phosphorothiolation and 1,4-S → C phospho-Fries rearrangement: controlled access to phosphorothiolated and mercapto-phosphono substituted indolizines

An unprecedented electrochemically regioselective C–H phosphorothiolation and S- to C-[1,4] phosphonyl migration involving indolizines, elemental sulfur, and H-phosphonates in an undivided cell has been developed.