1.1: (CH3)3SnSn(CH3)3 / Pd(PPh3)4 / tetrahydrofuran / Heating 1.2: 120 mg / CuBr / Pd(PPh3)4 / tetrahydrofuran / Heating 2.1: 100 percent / H2 / 10 percent Pd/C / ethyl acetate / 40 - 45 <unit not given> View Scheme