1: 94 percent / H2 / PtO2 / acetic acid; ethyl acetate / 2 h / 760 Torr / Ambient temperature 2: 1.) 12N HCl; 2.) SOCl2 / 1.) acetic acid, 110 degC, 48h; 2.) 1h, room temp.; 6h, 40 degC View Scheme