The composites developed in can be directly used in flow reactors for synthesis of fused pyridines, however their stability is still insufficient and should be improved. However, an important finding is that the carbon plays important role in reaction of ketones with propargylamine. This finding can give rise to new research directed on development of active catalysts for the considered reaction. In addition, this work is a one more step towards development of noble-metal-free catalysts for organic reactions, in particular, for replacement of Au-based catalysts of cycloaddition of propargylamine to ketones.