1.1: NaH / tetrahydrofuran / 0.25 h / 20 °C 1.2: tetrahydrofuran / 6 h / Heating 2.1: LiAlH4 / tetrahydrofuran / 2 h / Heating 3.1: Na(Hg); sodium phosphate / methanol / 2 h / 20 °C View Scheme

lithium aluminium tetrahydride in tetrahydrofuran 2 h; Heating;