Phosphine‐Catalyzed [4+3] Annulation Reaction of Indole Derivatives with MBH Carbonates: A Facile Access to Indole‐1,2‐fused 1,4‐Diazepinones and Azepines
作者:Yannan Zhu、Haoran Jiang、Yi‐Ning Wang
DOI:10.1002/cjoc.202300505
日期:2024.2
phosphine-catalyzed [4+3] annulation between dinucleophilic indole derivatives and Morita−Baylis−Hillman (MBH) carbonates was discovered by using the N1 and N4′/C4′ nucleophilicities of the indole precursors, in which indoles act as four atom synthons. This protocol provides an efficient and facile access to indole-1,2-fused 1,4-diazepinones and azepines in good to high yields in one step, which illustrates potential
利用吲哚前体的 N1 和 N4'/C4' 亲核性,发现了双亲核吲哚衍生物和 Morita-Baylis-Hillman (MBH) 碳酸盐之间的膦催化 [4+3] 成环反应,其中吲哚充当四个原子合成子。该方案提供了一种高效、便捷地一步获得吲哚-1,2-融合的 1,4-二氮杂酮和氮杂卓化合物的方法,其产率从良好到高,这说明了药物发现中潜在的合成用途。