1: 76 percent / p-toluenesulfonic acid / toluene / Heating 2: 65 percent / H2 / PtO2 / ethanol / 15 h / 1650.1 - 2100.2 Torr / Ambient temperature 3: 2.) aq. HCl / 1.) benzene, ether, 50 deg C, 12 h View Scheme

1: 76 percent / p-toluenesulfonic acid / toluene / Heating 2: 65 percent / H2 / PtO2 / ethanol / 15 h / 1650.1 - 2100.2 Torr / Ambient temperature 3: 2.) aq. HCl / 1.) benzene, ether, 50 deg C, 12 h View Scheme

1: 65 percent / H2 / PtO2 / ethanol / 15 h / 1650.1 - 2100.2 Torr / Ambient temperature 2: 2.) aq. HCl / 1.) benzene, ether, 50 deg C, 12 h View Scheme

hydrogenchloride 1.) benzene, ether, 50 deg C, 12 h; Yield given. Multistep reaction;