A simple, efficient, and eco-friendly synthetic protocol has been developed via one pot three-component reaction between aldehyde, amino pyrazole, and 1,3-cyclohexanedione by using recyclable polyethylene glycol (PEG)-400 as a reactionmedium. Utilizing this protocol a variety of pyrazolo[3,4-b]quinoline derivatives were synthesized in excellent yields.
通过使用可回收的聚乙二醇(PEG)-400作为反应介质,通过醛,氨基吡唑和1,3-环己二酮之间的一锅三组分反应,开发了一种简单,高效且环保的合成方案。利用该方案,以优异的产率合成了多种吡唑并[3,4- b ]喹啉衍生物。