tetra-(n-butyl)ammonium iodide; sodium hydride in N,N-dimethyl-formamide Inert atmosphere;

samarium; iodine; sodium iodide 1.) THF, room temp., 2.) 0 deg C to room temp.; Yield given. Multistep reaction;

1: With [2,2']bipyridinyl; trimethylsilyl trifluoromethanesulfonate in dichloromethane T=0°C; 0.3 h; Inert atmosphere; 2: With hydrogenchloride; water in diethyl ether T=20°C; 1 h;