1: 84 percent / 36percent HCl / methanol / 1.17 h / Heating 2: 69 percent / Fremy's salt, KH2PO4 / H2O; ethanol / 0.67 h / 0 °C 3: 1) BF3*Et2O, 2) chloranil / 1) CH2Cl2, -40 deg C, 3 h, 2) m-xylene, 140 deg C, 24 h View Scheme