nickel Yield given. Yields of byproduct given. Title compound not separated from byproducts;

1: 71 percent / n-BuLi / tetrahydrofuran; hexane / 1.) -78 deg C, 2 h; 2.) up to RT 2: P(OPh)3 / tetrakis(triphenylphosphite)nickel(0) (Ni<P(OPh)3>4 / benzene / 18 h / 120 °C View Scheme

1: 71 percent / n-BuLi / tetrahydrofuran; hexane / 1.) -78 deg C, 2 h; 2.) up to RT 2: P(OPh)3 / tetrakis(triphenylphosphite)nickel(0) (Ni<P(OPh)3>4 / benzene / 18 h / 120 °C View Scheme