1: 74.6 percent / CH3COOK, H2 / 10percent Pd/C / methanol / 24 h / 760 Torr / Ambient temperature 2: 80.7 percent / CH3COOH, 30 percent H2O2 / 1.) 1 h at 40, 50, 60, 70, 80 and 90 deg C; 2.) 17 h, 100 deg C 3: 89.2 percent / 3 h / 140 °C View Scheme

hydrogen; potassium acetate; palladium on activated charcoal in methanol P=760 Torr; 24 h; Ambient temperature;

1: 74.6 percent / CH3COOK, H2 / 10percent Pd/C / methanol / 24 h / 760 Torr / Ambient temperature 2: 80.7 percent / CH3COOH, 30 percent H2O2 / 1.) 1 h at 40, 50, 60, 70, 80 and 90 deg C; 2.) 17 h, 100 deg C View Scheme