1: 98 percent / I2 / CH2Cl2 / 12 h / 25 °C 2: 60 percent / PdCl2(PPh3)2; K2CO3 / dimethylformamide / 6 h / 60 °C 3: 99 percent / n-Bu4N(1+)*F(1-) / dimethylformamide / 2 h / 100 °C View Scheme