1: 76 percent / hydrogen / W-2 Raney nickel / methanol / 760 Torr / Ambient temperature 2: toluene / 5 h / Heating 3: 95 percent / CHCl3 / Ambient temperature 4: 92 percent / hydrogen / W-2 Raney nickel / methanol / 760 Torr / Ambient temperature 5: 80 percent / 30percent hydrochloric acid / methanol / 25 h / Heating View Scheme