A simple and convenient synthesis of tautomeric (6 or 2)-hydroxy-4-methyl-(2 or 6)-oxo-1-(substituted phenyl)-(1,2 or 1,6)-dihydropyridine-3-carbonitriles
作者:Ismail Ajaj、Dušan Mijin、Veselin Maslak、Danijela Brković、Miloš Milčić、Nina Todorović、Aleksandar Marinković
DOI:10.1007/s00706-012-0911-5
日期:2013.5
2)-hydroxy-4-methyl-(2 or 6)-oxo-1-(substituted phenyl)-(1,2 or 1,6)-dihydropyridine-3-carbonitriles from ethyl acetoacetate and 2-cyano-N-(substituted phenyl)ethanamides using microwave-assisted chemistry is presented. The structure of the obtained product was confirmed by the use of FT-IR, NMR, UV, and MS techniques. The presence of tautomeric forms (6-hydroxy-4-methyl-2-oxo-1-(substituted phenyl)-1,2-dihydrop
摘要一种简单,方便的合成互变异构体(6或2)-羟基-4-甲基-(2或6)-氧-1-(取代的苯基)-(1,2或1,6)-二氢吡啶-3-甲腈的方法提出了利用微波辅助化学的乙酰乙酸乙酯和2-氰基-N-(取代的苯基)乙酰胺。通过使用FT-IR,NMR,UV和MS技术来确认所获得的产物的结构。存在互变异构形式(6-羟基-4-甲基-2-氧-1-(取代的苯基)-1,2-二氢吡啶-3-甲腈和2-羟基-4-甲基-6-氧-1-(1 H和13研究了取代的苯基)-1,6-二氢吡啶-3-腈)和所得产物在DMSO- d 6中的平衡状态C NMR光谱,以及B3LYP / 6-311 ++ G(d,p)和GIAO / WP04 / aug-cc-pVDZ理论计算。 图形概要