1: 71 percent / potassium hydroxide; hydrazine hydrate / ethane-1,2-diol / 3 h / Heating 2: 81 percent / sodium cyanoborohydride / H2O; acetonitrile / 0.17 h / 20 °C View Scheme

potassium hydroxide; hydrazine hydrate in ethylene glycol 3 h; Heating;