lithium aluminium tetrahydride in tetrahydrofuran T=19°C; 1 h;

1: 54 percent / pyridine / Ambient temperature 2: 72 percent / LiAlH4 / tetrahydrofuran / 1 h / 19 °C View Scheme

1: 1.) LDA / 1.) THF, hexane, -80 deg C, 1 h, 2.) THF, hexane, -40 deg C, 1 h 2: 54 percent / pyridine / Ambient temperature 3: 72 percent / LiAlH4 / tetrahydrofuran / 1 h / 19 °C View Scheme