hydrogenchloride; potassium carbonate in acetone Heating; Yield given;

1: sodium ethylate; ethanol 2: ethanol; aqueous HCl View Scheme

1: 1.) K2CO3, 2.) HCl / acetone / Heating 2: tetrahydrofuran / 1.) -15 deg C, 3 hr, 2.) 0 deg C, 18 hr 3: 80 percent / HgCl, HgO / acetonitrile; H2O / 2.5 h 4: 70 percent / AlCl3-NaCl (5:1) / 0.05 h / 180 °C View Scheme