A series of cyanoiminopyrimidines were synthesized by the reaction of 1-(2-naphthyl)-3-arylprop-2-en-1-ones with cyanoguanidine in the presence of sodium hydroxide in ethanol. The mechanism involves the 1,4 or 1,2-addition of cyanoguanidine to α, β-unsaturated ketone, heterocyclisation and subsequent tautomeric change of formed adduct with loss of water. All the newly synthesized compounds were characterized by IR and NMR spectral studies. The in vitro antimicrobial screening of synthesized compounds showed the significant antifungal activities compared to the standard fluconazole.
Synthesis, Acetylnaphthalene, Chalcones, Cyanoguanidine, Cyanoiminopyrimidines