A three-component reaction of a 2-aminoazine, a 2-oxoaldehyde, and a cyclic 1,3-dicarbonyl compound providing access toward a novel class of imidazo[1,2-a]azine derivatives was developed and studied. The scope of the process was thoroughly explored under three different reaction conditions resulting in the generation of a small library of title compounds and highlighting the possibility of case-specific approach.
Keywords: 1,3-dicarbonyl compounds; 2-aminoazines; 2-oxoaldehydes; imidazo[1,2-a]azines; multicomponent reactions.