1: azidotrimethylsilane / CH2Cl2 / 1.) 0 deg C, 1 h; 2.) room temperature, 1 h 2: propan-2-ol / Heating View Scheme

1: 94 percent / CHCl3 / Heating 2: azidotrimethylsilane / CH2Cl2 / 1.) 0 deg C, 1 h; 2.) room temperature, 1 h 3: propan-2-ol / Heating View Scheme

in isopropyl alcohol Heating; Yield given;