thionyl chloride in diethyl ether 3 h; Heating;

1: Br2 / CCl4 2: 90 percent / MeONa, HCl / methanol / 0.08 h / Ambient temperature 3: SOCl2 / 2 h / Heating 4: 85 percent / soude, HCl / H2O / 0.5 h / 30 °C 5: 95 percent / SOCl2 / diethyl ether / 3 h / Heating View Scheme

1: SOCl2 / 2 h / Heating 2: 85 percent / soude, HCl / H2O / 0.5 h / 30 °C 3: 95 percent / SOCl2 / diethyl ether / 3 h / Heating View Scheme

1: 90 percent / MeONa, HCl / methanol / 0.08 h / Ambient temperature 2: SOCl2 / 2 h / Heating 3: 85 percent / soude, HCl / H2O / 0.5 h / 30 °C 4: 95 percent / SOCl2 / diethyl ether / 3 h / Heating View Scheme