Synthesis of novel multi-functionalized pyrrolidines by [3 + 2] dipolar cycloaddition of azomethine ylides and vinyl ketones
作者:Marko S. Pešić、Jovana P. Bugarinović、Aleksandra Minić、Danijela Ilić Komatina、Anka Pejović、Biljana Šmit、Dragana Stevanović、Ivan Damljanović
DOI:10.1007/s00706-018-2340-6
日期:2019.4
AbstractAn efficient and easy synthetic route to substituted pyrrolidine derivatives has been established through [3 + 2] dipolar cycloaddition of vinyl ketones and azomethine ylides. The reactions proceed smoothly, under mild conditions, affording moderate to high isolated yields (up to 88%) of the products, within a short reaction time (15–45 min), providing a series of novel potentially bioactive
摘要通过[3 + 2]乙烯基酮和偶氮甲碱的偶极环加成反应,已经建立了一种高效,简便的合成取代吡咯烷衍生物的途径。在温和的条件下,反应平稳进行,在较短的反应时间(15-45分钟)内可提供中等到高的分离产率(高达88%)的产物,提供了一系列新颖的潜在生物活性化合物。机理考虑表明,该环加成仅在内途径之后进行,该内途径使得能够获得顺式衍生物。通过监测反应动力学和DFT计算可以证实,在C4处含有乙酰基的产物容易进行异构化。 图形概要