1: 95 percent / 0.5 h / 170 °C 2: 1.) n-BuLi, 2.) Iod / 1.) THF, Hexan, 4 min, -65 deg C, 2.) THF, 3 min, -65 deg C 3: 87 percent / 10percent aq. HCl / CH2Cl2 / 12 h / Ambient temperature View Scheme