An efficient synthesis of pyrimido[4,5-<i>b</i>]quinoline derivatives<i>via</i>three-component reaction in aqueous media
作者:Da-Qing Shi、Li-Hui Niu、Hao Yao、Hong Jiang
DOI:10.1002/jhet.57
日期:2009.3
A series of pyrimido[4,5-b]quinoline derivatives was synthesized by three-component reaction of 6-aminopyrimidine, aromatic aldehydes and 1,3-cyclohexanedione or 5,5-dimethyl-1,3-cyclohexanedione in aqueousmedia in the presence of triethylbenzylammonium chloride. This protocol has the advantages of higher yields, lower lost, easy work-up, and environmentally friendly procedure. J. Heterocyclic Chem
通过6-氨基嘧啶,芳族醛和三乙胺的三组分反应合成了一系列嘧啶并[4,5- b ]喹啉衍生物。1,3-环己二酮或5,5-二甲基-1,3-环己二酮在水性介质中存在三乙基苄基氯化铵。该方案的优点是产量高,损失少,后处理容易并且环保。杂环化学杂志,46,237(2009)。