2,9-dimethyl-1,10-phenanthroline; palladium diacetate; silver carbonate in acetonitrile T=60°C; 24 h; regioselective reaction;

ClAu(di(tert-butyl)(1,1′-biphenyl-2-yl)-phosphine); silver trifluoromethanesulfonate in tetrahydrofuran T=65°C; 5 h; Inert atmosphere;