hydrogenchloride; zinc oxide; zinc(II) chloride 2.) ether, CH2Cl2, 0 deg C, 2 h; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;

zinc(II) chloride in diethyl ether Product distributionMechanism;

hydrogenchloride; zinc(II) chloride in diethyl ether T=20°C;

1: ZnCl2, HCl / diethyl ether / 20 °C 2: 65 percent / Br2 / CCl4 / 2 h / Ambient temperature View Scheme