T=182°C; P=0.1 Torr; 0.5 h;

hydrogenchloride 72 h; Ambient temperature2) diethyl ether;

1: 1) potassium t-butoxide / 2) 75 deg C, 24 h 2: 65 percent / 96 h / Ambient temperature 3: 50 percent / 20percent aqueous NaOH / ethanol / 3 h / Heating 4: 65 percent / 0.5 h / 182 °C / 0.1 Torr View Scheme

1: 65 percent / 96 h / Ambient temperature 2: 50 percent / 20percent aqueous NaOH / ethanol / 3 h / Heating 3: 65 percent / 0.5 h / 182 °C / 0.1 Torr View Scheme

1: 50 percent / 20percent aqueous NaOH / ethanol / 3 h / Heating 2: 65 percent / 0.5 h / 182 °C / 0.1 Torr View Scheme