1: iPr2NEt / CH2Cl2 / 1 h / 0 °C 2: 52 percent / Pd2(dba)3*CHCl3; 1,1'-bis(diphenylphosphin)ferrocene / tetrahydrofuran / 1 h / 70 °C 3: 98 percent / Na; i-PrOH / toluene / 0.17 h / 0 °C 4: Et3N / CH2Cl2 / 1 h / -35 - -20 °C 5: 93 percent / SiO2 / CH2Cl2 / 6 h / 23 °C View Scheme