1: 93 percent / NaN3, 18-crown-6 / acetonitrile / 12 h / Heating 2: 77 percent / H2 / Pd/C / methanol / 3 h / 30 °C / 2250.2 Torr View Scheme

1: 93 percent / NaN3, 18-crown-6 / acetonitrile / 12 h / Heating 2: H2 / Pd/C / methanol / 3 h / 30 °C / 2250.2 Torr 3: aq. Ba(OH)2 / 12 h / Heating View Scheme

1: 93 percent / NaN3, 18-crown-6 / acetonitrile / 12 h / Heating 2: H2 / Pd/C / methanol / 3 h / 30 °C / 2250.2 Torr View Scheme