hydrogen; toluene-4-sulfonic acid; nickel 1.) EtOH, 1 atm, room temp, 2 h, 2.) benzene, reflux, 15 min; Yield given. Multistep reaction;

Multi-step reaction with 2 steps 1: 1.) H2, 2.) TsOH / 1.) Raney-Ni / 1.) EtOH, 1 atm, room temp, 2 h, 2.) benzene, reflux, 15 min2: 91 percent / LiAlH4 / diethyl ether / 1 h / Heating