Copper-Catalyzed Cascade Phosphorylation Initiated Radical Cyclization: Access to 2-Phosphorylated Pyrrolo[1,2-a]indole

A copper-catalyzed tandem radical cyclization of 1-(3-phenylprop-2-yn-1-yl)-1 H -indole with diphenylphosphine oxides was developed. C–P bond formation was achieved coupled with C(sp 2 )–H functionalization. It provided an access to construct the pyrrolo[1,2- a ]indole motif and a series of 2-phosphinoyl-9 H -pyrrolo[1,2- a ]indoles.