triethylamine in dichloromethane 3 h; Heating;

1: EtOK / ethanol; diethyl ether / 13 h / 0 °C 2: AcOH / Heating 3: 40 percent / LiAlH4 / diethyl ether / 1 h / Heating 4: 92 percent / Et3N / CH2Cl2 / 3 h / Heating View Scheme

1: 30 percent / diethyl ether; H2O / 1.5 h / 35 °C 2: EtOK / ethanol; diethyl ether / 13 h / 0 °C 3: AcOH / Heating 4: 40 percent / LiAlH4 / diethyl ether / 1 h / Heating 5: 92 percent / Et3N / CH2Cl2 / 3 h / Heating View Scheme

1: 40 percent / LiAlH4 / diethyl ether / 1 h / Heating 2: 92 percent / Et3N / CH2Cl2 / 3 h / Heating View Scheme