Fig. 7
Substrate scope of carboazidation of alkynes and further transformation to 2H-azirines. General reaction conditions: Fe(OTf)3 (0.025 mmol), alkyne (0.5 mmol), RI (0.75 mmol), TMSN3 (1.0 mmol), TBPB (1.0 mmol) in DME (2 mL) at rt for 5–20 min and then in toluene at 120 °C for 10 min under an N2 atmosphere. Isolated yields
