A facile and efficient synthesis of novel pyrimido[5,4-<i>b</i>][4,7]phenanthroline-9,11(7<i>H</i>,8<i>H</i>,10<i>H</i>,12<i>H</i>)-dione derivatives<i>via</i>microwave-assisted multicomponent reactions
A series of novel pyrimido[5,4-b][4,7]phenanthroline-9,11(7H,8H,10H,12H)-dione derivatives were synthesized via microwave-assisted three-component reactions of barbituric acid, aldehyde, and quinolin-6-amine in DMF without catalyst. This facile synthesis not only offers an economical and efficient synthetic strategy to this class of significant compounds but also enriches the investigations on microwave-assisted
通过微波辅助的三组分反应合成了一系列新颖的嘧啶并[5,4- b ] [4,7]菲咯啉-9,11(7 H,8 H,10 H,12 H)-二酮衍生物。巴比妥酸,醛和不含催化剂的DMF中的喹啉6-胺。这种简便的合成方法不仅为这类重要的化合物提供了一种经济有效的合成策略,而且丰富了微波辅助多组分反应的研究。此外,该方案具有反应时间短,产率高,成本低,易于操作以及环境友好的突出优点。J.杂环化学。,46,563(2009)。