Aliphatic aldehydes in multicomponent syntheses of 4-alkyl-substituted partially hydrogenated quinolines, fused 4H-pyrans, and 2-amino-4-ethyl-5-methylbenzene-1, …
VD Dyachenko, AN Chernega
文献索引:Dyachenko; Chernega Russian Journal of Organic Chemistry, 2006 , vol. 42, # 4 p. 567 - 576
Abstract The Knoevenagel condensation of aliphatic aldehydes with CH acids, malonodinitrile, cyanothioacetamide, cyclohexane-1, 3-dione, dimedone, 4- hydroxycoumarin, 3-aminophenol, and N-(cyclohex-1-enyl)-morpholine leads to formation of 4-alkyl-substituted partially hydrogenated quinolines, fused 4 H-pyrans, and 2-amino-4-ethyl- 5-methylbenzene-1, 3-dicarbonitrile. The structure of the latter was proved by the X-ray ...