1: H2 / 5percent Pt/C / acetic acid / 10 h / 1551.4 - 2068.6 Torr 2: 1.) 6N HCl, 2.) 50percent KOH / 1.) reflux, 6 h, 2.) reflux, 4 d View Scheme

1: 12 N HCl / 15 h / Ambient temperature 2: H2 / 5percent Pt/C / acetic acid / 10 h / 1551.4 - 2068.6 Torr 3: 1.) 6N HCl, 2.) 50percent KOH / 1.) reflux, 6 h, 2.) reflux, 4 d View Scheme

hydrogenchloride; potassium hydroxide 1.) reflux, 6 h, 2.) reflux, 4 d; Multistep reaction;

sulfuric acid T=85°C; 0.25 h;