1: 54 percent / AlCl3 / nitrobenzene / 0.08 h 2: 96 percent / H2 / 10percent Pd/C / acetic acid / 70 - 80 °C / 760 Torr View Scheme

aluminium trichloride in nitrobenzene 0.0833333 h;

1: 54 percent / AlCl3 / nitrobenzene / 0.08 h 2: 96 percent / H2 / 10percent Pd/C / acetic acid / 70 - 80 °C / 760 Torr 3: 75 percent / diphenylphosphoryl azide, Et3N / 18 h / Heating 4: 74 percent / 4N HCl / ethyl acetate / 3 h View Scheme

1: 54 percent / AlCl3 / nitrobenzene / 0.08 h 2: 96 percent / H2 / 10percent Pd/C / acetic acid / 70 - 80 °C / 760 Torr 3: 75 percent / diphenylphosphoryl azide, Et3N / 18 h / Heating 4: 74 percent / 4N HCl / ethyl acetate / 3 h 5: 66 percent / K2CO3 / acetonitrile / 96 h / Ambient temperature View Scheme