lithium aluminium tetrahydride in diethyl ether 12 h; Heating;

1: ethanol / 1.5 h 2: NaBH4 / ethanol / 18 h 3: 30.0 g / acetic acid / a) 65 deg C, 1 h, b) RT, 16 h 4: 89 percent / LiAlH4 / diethyl ether / 12 h / Heating View Scheme

1: 30.0 g / acetic acid / a) 65 deg C, 1 h, b) RT, 16 h 2: 89 percent / LiAlH4 / diethyl ether / 12 h / Heating View Scheme