hydrogenchloride; sodium hydroxide; sulfuryl dichloride; water; dihydrogen peroxide; sodium hydrogencarbonate 1.) rt, 7 h; 2.) rt, 16 h; Yield given. Multistep reaction. Yields of byproduct given;

1: chloroform / 1 h / 20 °C 2: hydrogenchloride / water / 17 h / Reflux View Scheme