1: With sodium methylate T=20°C; 2: With hydrogen; palladium 10 on activated carbon in methanol T=20°C;

1: With methanol T=20°C; 18 h; 2: With palladium 10 on activated carbon; hydrogen in methanol T=20°C; 18 h;

sodium tetrahydroborate; palladium on activated charcoal in ethanol; water Ambient temperature;

1: HNO3, H2SO4 2: methanol 3: NaBH4, Pd/C / ethanol View Scheme

1: methanol 2: NaBH4, Pd/C / ethanol View Scheme

1: With sodium azide in water; acetone T=20°C; 0.5 h; 2: in toluene 0.5 h; Heating; Further stages.;

1.1: 100 percent / potasssium carbonate / acetone / 5 h / 40 °C 2.1: n-butyllithium / tetrahydrofuran; hexane / 0.75 h / -78 °C 2.2: 81 percent / 2 h / -78 - 20 °C 3.1: thionyl chloride / dimethylformamide / 2 h / Heating 4.1: sodium azide / H2O; acetone / 0.5 h / 20 °C 4.2: 660 mg / toluene / 0.5 h / Heating View Scheme

1.1: n-butyllithium / tetrahydrofuran; hexane / 0.75 h / -78 °C 1.2: 81 percent / 2 h / -78 - 20 °C 2.1: thionyl chloride / dimethylformamide / 2 h / Heating 3.1: sodium azide / H2O; acetone / 0.5 h / 20 °C 3.2: 660 mg / toluene / 0.5 h / Heating View Scheme

1.1: thionyl chloride / dimethylformamide / 2 h / Heating 2.1: sodium azide / H2O; acetone / 0.5 h / 20 °C 2.2: 660 mg / toluene / 0.5 h / Heating View Scheme