New cascade reaction of azides with malononitrile dimer to polyfunctional [1,2,3]triazolo[4,5-<i>b</i>]pyridine
作者:Nazariy T. Pokhodylo、Olga Ya. Shyyka
DOI:10.1080/00397911.2017.1313427
日期:2017.6.3
ABSTRACT A new cascade reaction of azides with malononitrile dimer yielding polyfunctional [1,2,3]triazolo[4,5-b]pyridine was found. It was established that during the reaction of aryl azides with malononitrile dimer, under base catalysis, the formed intermediate triazole underwent spontaneous cyclization leading to the pyridine ring annulation. The obtained products have provided a new entry to [1
摘要发现了一种新的叠氮化物与丙二腈二聚体的级联反应,产生了多功能的 [1,2,3] 三唑并 [4,5-b] 吡啶。确定在芳基叠氮化物与丙二腈二聚体反应过程中,在碱催化下,形成的中间体三唑发生自发环化,导致吡啶环成环。获得的产物为[1,2,3]三唑并[4,5-b]吡啶提供了一个新的入口。图形概要