hydrogen; palladium on activated charcoal in ethyl acetate P=760 Torr; 3 h; Ambient temperature;

1: 1) Mg / 1) THF, room temperature, ultrasound, 2 h, 2) THF, a) -30 deg C, 1 h, b) room temperature, overnight 2: CF3COOH / 0.5 h / Ambient temperature 3: H2 / 10percent Pd/C / ethyl acetate / 3 h / 760 Torr / Ambient temperature View Scheme

1: 1) Mg / 1) THF, room temperature, ultrasound, 2 h, 2) THF, a) -30 deg C, 1 h, b) room temperature, overnight 2: CF3COOH / 0.5 h / Ambient temperature 3: H2 / 10percent Pd/C / ethyl acetate / 3 h / 760 Torr / Ambient temperature View Scheme

1: CF3COOH / 0.5 h / Ambient temperature 2: H2 / 10percent Pd/C / ethyl acetate / 3 h / 760 Torr / Ambient temperature View Scheme