760 torr; hydrogen; palladium on activated charcoal in ethanol; triethylamine 48 h; Ambient temperature;

1: 74 percent / BH3*THF / tetrahydrofuran / 3.5 h / Heating 2: 88 percent / p-TsOH*H2O / dimethylformamide / 24 h / 75 °C 3: 56 percent / CrO3, Ac2O / 18 h / Ambient temperature View Scheme

1: 92 percent / H2, 760 torr / Pd/C (10percent) / ethanol; triethylamine / 48 h / Ambient temperature 2: 78 percent / H2SO4, NaNO2 / 18 h / Ambient temperature 3: diethyl ether / 48 h / 5 °C View Scheme

1: 92 percent / H2, 760 torr / Pd/C (10percent) / ethanol; triethylamine / 48 h / Ambient temperature 2: 78 percent / H2SO4, NaNO2 / 18 h / Ambient temperature View Scheme