1: 66.5 percent / chlorure de calcium, borohydrure de sodium / ethanol; aq. KOH / 1.) room temperature, 5 h; 2.) 0 deg C, pH=1 (HCl 6N); 3.) -20 deg C 2: 77.6 percent / H2 / Pd/C (10percent) / ethyl acetate / 7 h / 3750.3 Torr / Ambient temperature View Scheme

1.1: 90 percent / Mg / methanol / 5.5 h / 0 °C 2.1: LiBH4 / tetrahydrofuran / 5.5 h / Heating 2.2: 48 percent / aq. HCl / tetrahydrofuran / 15 h / 20 °C View Scheme