Abstract
Heating aldehydes, N,N’-dimethylbarbituric acid and cyclohexane-1,3-diones in water results in fast formation of Knoevenagel–Michael adducts in 82–98% yields. This multicomponent process opens facile, efficient and environmentally benign way to the new functionalized [(2-hydroxy-6-oxocyclohex-1-en-1-yl)(aryl)methyl]pyrimidine-2,4(1H,3H)-diones bearing both barbituric acid and cyclohexane-1,3-dionemoieties separated by arylmethylene spacer, which are promising compounds for biomedical applications including analeptics, anti-AIDS and anticancer remedies.
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