2,2'-bis(di-p-tolyl-phosphino)-1,1'-binaphthyl; copper(I) oxide; 1,10-phenanthroline; palladium (II) bromide in 1-methyl-pyrrolidin-2-one T=50 - 190°C; Microwave irradiationInert atmosphere;

oxygen; copper diacetate; silver carbonate in N,N-dimethyl-formamide T=140°C; P=760.051 Torr; 36 h;