1: NaBH4, CeCl3 / methanol / 0.17 h / 20 °C 2: 43 percent / 80percent aq. formic acid / 0.67 h / 70 °C 3: 100 percent / H2 / Pd/C / ethyl acetate View Scheme

1: diethyl ether 2: 45 percent / 80percent aq. formic acid / 0.67 h / 85 °C 3: 100 percent / H2 / Pd/C / ethyl acetate View Scheme