hydrogen; trifluoroacetic acid; palladium on activated charcoal P=2844.3 Torr; 5 h;

1: 60 percent / m-chloroperbenzoic acid / CH2Cl2 / 6 h / Ambient temperature 2: 60 percent / HNO3, CF3CO2H / 0 °C 3: 80 percent / PCl3 / ethyl acetate / Heating 4: 84 percent / H2, CF3CO2H / Pd/C / 5 h / 2844.3 Torr View Scheme

1: 80 percent / PCl3 / ethyl acetate / Heating 2: 84 percent / H2, CF3CO2H / Pd/C / 5 h / 2844.3 Torr View Scheme

1: 60 percent / HNO3, CF3CO2H / 0 °C 2: 80 percent / PCl3 / ethyl acetate / Heating 3: 84 percent / H2, CF3CO2H / Pd/C / 5 h / 2844.3 Torr View Scheme

sodium hydroxide in ethanol 13 h; Ambient temperature;