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A series of novel azo-disperse dyes containing alkylhydrazonopyridinone structures were synthesized. 4-Methyl-2,6-dioxo-1-propyl-1,2,5,6-tetrahydropyridine-3carbonitrile (8) is synthesized by one-pot synthesis using ethyl cyanoacetate, propylamine, and ethyl acetoacetate. Compound 8 is then coupled with aromatic and heteroaromatic diazonium salts to afford the corresponding aryl-and heteroaryl-4-methyl-2,6-dioxo-1propyl-1,2,5,6-tetrahydropyridine-3-carbonitriles 12a,b and 13a-c. Structuraldoi:10.3390/molecules17088822 pmid:22832883 fatcat:dlkygdvonrgnfktuqsa7rbm27m