1: 1.) ethyl chloroformate, triethylamine, 2.) aq. NaN3 / 1.) acetone, from 0 deg C to 25 deg C, 55 min, 2.) acetone, 0 deg C, 2 h 2: toluene / 8 h / Heating 3: 6 N aq. HCl / 2 h / Heating View Scheme

ammonia; bis-[(trifluoroacetoxy)iodo]benzene 1) MeOH, pressure, 2) DMF, H2O; Yield given. Multistep reaction;