bis-triphenylphosphine-palladium(II) chloride; potassium phenolate; triphenylphosphine in toluene T=70°C; 72 h; Inert atmosphereSealed vessel;

palladium diacetate; tetrabutyl-ammonium chloride; potassium carbonate in N,N-dimethyl-formamide T=20°C; 6 h;