1: palladium; aq. NaOH solution / Hydrogenation 2: aqueous NaOH View Scheme

1: 92 percent / AcONa, H2 / Pd-C (10percent) / acetic acid / Ambient temperature 2: 3.2 g / K2CO3 / acetone / 15 h / Heating 3: AcONa, H2 / Pd-C (10percent) / acetic acid / Ambient temperature 4: 80 percent / KOH / H2O; dimethylsulfoxide / 20 h / 90 °C View Scheme

1: 48 percent / conc. H2SO4 / 1 h / Ambient temperature 2: 71 percent / NaHCO3, H2 / Pd-C (10percent) / Ambient temperature View Scheme

hydrogen; sodium acetate; palladium on activated charcoal in acetic acid Ambient temperature;