During the last century, the methods of cycloalkane ring-fused pyridines preparation evolved from multi-step sequences to single-step atom-efficient reactions mostly based on cyclic ketones as the starting materials. Several single-step methods of cycloalkane fused pyridines synthesis were reported. Abbiaty et. al. described a preparative method for the synthesis of cycloalkenopyridines from cyclic ketones and propargylamine . In this seminal study, it was shown that sodium tetrachloroaurate was the most suitable and reliable catalyst for this reaction. Later, metallic nanoparticles (Au, Ag, Cu) deposited on alumina were used as catalysts for the oxidative cyclization of enamines, obtained from propargylamine and ketones . Again, it was found that Au-containing systems had the best performance, while the use of Cu-impregnated alumina as a catalyst led to ca. 70 % conversion of ketone (such as acetone) to pyridine (such as 2-picoline) at 125 °C and 5 bar pressures of oxygen. However, the conversion of acetone fell to ca. 45 % after 1.5 h . Recently we showed that Cu II salts could be used as the catalysts for multigram synthesis of fused pyridines .