1: 88 percent / (C2H5)3N / CH2Cl2 / 1.) -30 deg C, 5 min, 2.) room temp., 2 h 2: 93 percent / NaN3, 18-crown-6 / acetonitrile / 12 h / Heating 3: H2 / Pd/C / methanol / 3 h / 30 °C / 2250.2 Torr 4: aq. Ba(OH)2 / 12 h / Heating View Scheme

1: H2 / Pd/C / methanol / 3 h / 30 °C / 2250.2 Torr 2: 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 3: aq. Ba(OH)2 / 12 h / Heating View Scheme

barium dihydroxide 12 h; Heating;