hydrogenchloride; acetic acid; rhenium heptasulfide Heating;

1: 98 percent / NaN3, tricaprylmethylammonium chloride / H2O / 8 h / 50 °C 2: AcOH, HCl, hydroquinone / 1 mol-percent Re2S7 / 3 h / 85 °C View Scheme

1: 91 percent / C6H5SNa / CH2Cl2 / 5 h / 25 °C 2: 98 percent / NaN3, tricaprylmethylammonium chloride / H2O / 8 h / 50 °C 3: AcOH, HCl, hydroquinone / 1 mol-percent Re2S7 / 3 h / 85 °C View Scheme

hydrogenchloride; acetic acid; hydroquinone; rhenium heptasulfide T=85°C; 3 h; Yield given. Yields of byproduct given. Title compound not separated from byproducts;