一锅合成二氢呋喃[3',4':5,6]吡啶[2,3- c ]吡唑和茚并[2',1':5,6]吡啶[2,3- c]的新方法已经使用可回收的有机催化剂研究了对吡唑衍生物。该新协议具有环境友好,产量高,成本低以及操作方便的优点。还研究了各种小的有机催化剂,例如l-脯氨酸,反式-4-羟基-1-脯氨酸,l-硫代脯氨酸,辛可尼定,(+)-辛可宁和dl-2-苯基甘氨酸的催化效率。
Three-Component One-Pot Synthesis of Indeno[2′,1′:5,6]Pyrido[2,3-<i>d</i>]Pyrazole Derivatives in Aqueous Media
作者:Da-Qing Shi、Jing-Wen Shi、Hao Yao
DOI:10.1002/jccs.200900075
日期:2009.6
A series of indeno[2′,1′:5,6]pyrido[2,3‐d]pyrazoles was synthesized by the three‐component reaction of aldehyde, 5‐amino‐3‐methyl‐1‐phenylpyrazole and 1,3‐indenedione in the presence of SDS in aqueousmedia. The structures were characterized by IR, 1H NMR, high resolution mass spectra and were further confirmed by X‐ray diffraction analysis.
通过醛,5-氨基-3-甲基-1-1-苯基吡唑和1,3的三组分反应合成了一系列茚并[2',1':5,6]吡啶基[2,3- d ]吡唑-在水介质中存在SDS的茚二酮。结构经IR,1 H NMR,高分辨率质谱表征,并通过X射线衍射分析进一步证实。