1: 84 percent / hydrogen / Pd/C / methanol / 4 h 2: 87 percent / aq. NaOH / CH2Cl2 / 3 h / 20 °C 3: 68 percent / NaH / tetrahydrofuran / 3 h / 20 °C 4: HCl / methanol / 0.5 h / 20 °C 5: 95 percent / LiAlH4 / diethyl ether / 2 h / 20 °C View Scheme

1: 84 percent / hydrogen / Pd/C / methanol / 4 h 2: 87 percent / aq. NaOH / CH2Cl2 / 3 h / 20 °C 3: 68 percent / NaH / tetrahydrofuran / 3 h / 20 °C 4: HCl / methanol / 0.5 h / 20 °C View Scheme

1: With hydrogen; acetic acid; palladium 10 on activated carbon in tetrahydrofuran T=40°C; P=900.09 - 975.098 Torr; 21 h; 2: With sodium hydroxide in water pH=> 10;