1: 1) H2; 2) 10 percent HCl / 1) Pd/C (80 percent) / 1) ethanol, 6 h; 2) 48 h, reflux 2: 69 percent / silver carbonate / H2O / 4 h View Scheme

hydrogenchloride; hydrogen; palladium on activated charcoal 1) ethanol, 6 h; 2) 48 h, reflux; Yield given. Multistep reaction;