Aza-Morita–Baylis–Hillman Reaction with Vinyl-oxadiazoles: An Expeditious Approach to Access New Heterocyclic Arrangements
作者:André Capretz-Agy、Fábio S. Fernandes、Manoel T. Rodrigues、Caroline Conti、Fernando Coelho
DOI:10.1055/s-0039-1691497
日期:2020.4
In this communication, we disclosed a new aza-MBH reaction in which traditional nucleophilic partners of these reactions (e.g., acrylates, nitroolefins or enones) were replaced by vinyl-1,2,4-oxadiazoles. Thus, the aza-MBH reaction between 5-aryl-3-vinyl-1,2,4-oxadiazoles and N-sulfonylimines, catalyzed by the mixture DABCO/AcOH, provides a class of new adduct in yields varying from 31% up to 93% in
在这篇通讯中,我们公开了一种新的氮杂-MBH 反应,其中这些反应的传统亲核伙伴(例如,丙烯酸酯、硝基烯烃或烯酮)被乙烯基-1,2,4-恶二唑取代。因此,由 DABCO/AcOH 混合物催化的 5-芳基-3-乙烯基-1,2,4-恶二唑和 N-磺酰亚胺之间的氮杂-MBH 反应提供了一类新的加合物,产率从 31% 到93% 的反应时间从 30 分钟到 24 小时。由于与 1,2,4-恶二唑基序相关的生物活性和技术应用,这类新型杂环具有巨大的合成和商业潜力。