1: 79.5 percent / K2CO3; H2 / Pd(OH)2/C / methanol; H2O / 20 h / 3102.89 Torr 2: Dowex 50(H+); H2 / Pd(OH)2/C / H2O / 30 h / 3102.89 Torr / pH 3 - 4 View Scheme