lithium diisopropyl amide 1.) hexane, THF, 2.) hexane, THF, 20 deg C, 15 min; Yield given. Multistep reaction;

1: sodium borohydride / tetrahydrofuran; H2O / 2 h / 20 °C 2: acetonitrile / 3 h / Heating 3: sodium borohydride / methanol / 1 h / 25 °C 4: H2, aq. HCl / Pd/C / aq. ethanol / 16 h / 65 °C View Scheme