copper(l) iodide; 8-hydroxy-quinoline; caesium carbonate in tert-butyl alcohol T=90°C; 16 h; Inert atmosphere;

4,7-(dipyrrolidin-1-yl)-1,10-phenanthroline; potassium hydroxide; copper(I) bromide in water T=120°C; 48 h; Sealed tubeInert atmosphereGreen chemistry;

in N,N-dimethyl-formamide T=90°C; 12 h;