hydrogenchloride; mercury; zinc in ethanol; water 16 h;

1: 62 percent / benzene / 18 h / 90 °C 2: 25 percent / ethanol / 168 h / Irradiation 3: 79 percent / Zn(Hg), conc. HCl / ethanol; H2O / 16 h View Scheme

1: 62 percent / benzene / 18 h / 90 °C 2: 25 percent / ethanol / 168 h / Irradiation 3: 79 percent / Zn(Hg), conc. HCl / ethanol; H2O / 16 h View Scheme

1: 25 percent / ethanol / 168 h / Irradiation 2: 79 percent / Zn(Hg), conc. HCl / ethanol; H2O / 16 h View Scheme

sodium hydride; acetic acid 1.) DMSO, room temperature, 18 h, 2.) water, 110 deg C, 18 h; Yield given. Multistep reaction. Yields of byproduct given. Title compound not separated from byproducts;