Russian Journal of Organic Chemistry.
Vol. 59.
2023.
P. 969-979
Multicomponent condensation of alkylating reagents with carbonyl compounds functionalized by CH-acids is initiated by the Knoevenagel reaction and leads to the formation of substituted pyridines, thienopyridines, pyridothienopyridines, and pyrimidothienopyridopyrimidines. The structure of the key products was studied by the X-ray diffraction method.