In this study, we intended to develop the heterogeneous Au-free catalyst of oxidative annulation of cyclic ketones with propargylamine, suitable for use in the flow reactors, and to find conditions for high yields of the fused pyridines in the presence of such systems in an atmosphere of air (as we managed in our previous study for CuCl2 ). The idea of the work was that Cu-containing composites, prepared by thermal decomposition of Cu II complexes with DAB and Phen (where DAB is 1,2-diaminobenzene, Phen is 1,10-phenanthroline) on SiO2 surface, would have high catalytic performance in the Cu-catalyzed process, similarly to the previously reported cases where catalytically active metal-containing composites were prepared by pyrolysis . Thermal decomposition of Cu II complexes was chosen as the method for preparation of the catalysts due to its simplicity and suitability for scale-up, which is important in the case of preparation of large batches of the catalysts. SiO2 used was Aerosil, it was chosen as a solid porous support for the immobilization of Cu species because of its high surface, thermal stability as well as stability under the reaction conditions, and, in addition, its low price.