1: 98 percent / H2 / 5percent Pd/C / methanol / 2327.2 Torr 2: NaH / 1,2-dimethoxy-ethane / 0.5 h / Heating 3: 20percent aq. HCl / aq. ethanol / 18 h / Heating View Scheme

1: 98 percent / H2 / 5percent Pd/C / methanol / 2327.2 Torr 2: NaH / 1,2-dimethoxy-ethane / 0.5 h / Heating 3: 20percent aq. HCl / aq. ethanol / 18 h / Heating 4: p-toluenesulfonic acid / benzene / Heating View Scheme

1: 98 percent / H2 / 5percent Pd/C / methanol / 2327.2 Torr 2: NaH / 1,2-dimethoxy-ethane / 0.5 h / Heating 3: 20percent aq. HCl / aq. ethanol / 18 h / Heating 4: p-toluenesulfonic acid / benzene / Heating 5: 1.) 80 deg C, 3 h, 2.) 130 deg C, 30 min View Scheme