1: 85 percent / iPr2NEt / CH2Cl2 / 0.08 h / 0 °C 2: 89 percent / Pd(Ph3P)4, CuI, LiCl / tetrahydrofuran / 3.5 h / Heating 3: 37 percent / acetonitrile / 1.5 h / Irradiation 4: 90 percent / EtONa / ethanol / 0.25 h / Heating 5: 92 percent Turnov. / NaBH4, CoCl2*6H2O / methanol; tetrahydrofuran / 1 h / Ambient temperature View Scheme