lithium aluminium tetrahydride in diethyl ether T=-10°C; 15 h;

1: 1) nitrosylsulfuric acid / 1) acetic acid, 30 min, 2) acetic acid, 15-20 deg C, 15 h 2: 56 percent / LiAlH4 / diethyl ether / 15 h / -10 °C View Scheme