1.1: sodium hydroxide / ethanol; water / 1 h / Reflux 2.1: methanesulfonic acid / Heating 3.1: pyridine / dichloromethane / 20 °C 3.2: 20 °C / Cooling 4.1: copper(l) iodide; bis-triphenylphosphine-palladium(II) chloride; triethylamine / N,N-dimethyl-formamide / 2 h / 20 °C / Inert atmosphere 5.1: methanol; potassium carbonate / tetrahydrofuran / 1 h / 20 °C 6.1: platinum (II) chloride / toluene / Heating 7.1: boron tribromide 8.1: bis-[(trifluoroacetoxy)iodo]benzene View Scheme