Manganese(II)-Mediated Domino Annulation Reaction of Vinyl Azides and 4-Hydroxycoumarin: A Stereoselective Synthesis of Spirobenzofuranone-lactams
作者:Shanshan Guo、Binhui Chen、Donghong Zhao、Wenteng Chen、Guolin Zhang
DOI:10.1002/adsc.201600423
日期:2016.10.6
A manganese(II) acetate‐catalyzed domino reaction of vinyl azides and 4‐hydroxycoumarin has been developed for the synthesis of polyfunctionalized spirofuranone‐lactams. A wide range of vinyl azides are capable of providing the desired spirofuranone‐lactams in good to excellent yields. The reaction was achieved via thermal decomposition of vinyl azides to 2H‐azirines, followed by an intramolecular
已开发出锰(II)乙酸锰催化的叠氮化物和4-羟基香豆素的多米诺反应,用于合成多官能化的螺呋喃酮-内酰胺。各种各样的乙烯基叠氮化物能够以优异的产率提供所需的螺呋喃酮-内酰胺。该反应是通过将乙烯基叠氮化物热分解为2 H-叠氮基,然后进行分子内亲核攻击和立体选择性环化而实现的。温和的反应条件和简便的操作使该反应对于合成螺呋喃酮-内酰胺具有优势。