Multicomponent Strategy to Pyrazolo[3,4-<i>b</i>]pyrrolo[3,4-<i>d</i>]pyridine Derivatives under Microwave Irradiation
作者:Xian Feng、Jianjun Wang、Dexiu Liu、Hui Shi、Wenjing Lu、Daqing Shi
DOI:10.1021/acs.joc.2c03070
日期:2023.6.2
novel three-component reaction has been established that allows a flexible and practical approach to pyrazolo[3,4-b]pyrrolo[3,4-d]pyridine derivatives from phenylglyoxal, β-ketoamide, and 5-aminopyrazole with acetic acid as the solvent. Various dihydropyrazolo[3,4-b]pyrrolo[3,4-d]pyridin-6(3H)-one were isolated in moderate to good yields with broad functional group tolerance.
已经建立了一种新的三组分反应,该反应允许灵活实用的方法从苯乙二醛、β-酮酰胺和 5-氨基吡唑与乙酸作为吡唑并[3,4- b ]吡咯并[3,4- d ]吡啶衍生物溶剂。各种二氢吡唑并[3,4- b ]吡咯并[3,4- d ]pyridin-6(3 H )-one 以中等到良好的产率分离,具有广泛的官能团耐受性。