有机化学    

研究论文

钯催化非活化烯烃的分子内Heck/胺化反应合成螺吲哚啉

林艳如a,b, 周倩b, 秦景灏b, 宋德威b, 宋芳芳b, 高媛媛b, 包欢a, 李飞a,*, 姜恒a,*, 刘澜涛b,*   

  1. a辽宁石油化工大学石油化工学院 辽宁抚顺 113001;
    b商丘师范学院化学化工学院 河南省药物绿色合成工程研究中心 河南商丘 476000
  • 收稿日期:2026-04-07 修回日期:2026-05-17
  • 基金资助:
    河南省自然科学基金(Nos. 262300421296, 252300423729)资助项目.

Palladium-Catalyzed Intramolecular Heck/Amination of Unactivated Alkenes for the Synthesis of Spiroindolines

Lin Yan-Rua,b, Zhou Qianb, Qin Jinghaob, Song Deweib, Song Fang-Fangb, Gao Yuan-Yuanb, Bao Huana, Li Feia,*, Jiang Henga,*, Liu Lantaob,*   

  1. aSchool of Petrochemical Engineering, Liaoning Petrochemical University, Fushun, Liaoning 113001;
    bHenan Engineering Laboratory of Green Synthesis for Pharmaceuticals, School of Chemistry and Chemical Engineering, Shangqiu Normal University, Shangqiu, Henan 476000
  • Received:2026-04-07 Revised:2026-05-17
  • Contact: *E-mail: lnpulf@126.com; hjiang78@hotmail.com; liult05@iccas.ac.cn.
  • Supported by:
    Natural Science Foundation of Henan (Nos. 262300421296 and 252300423729)

螺吲哚啉广泛存在于天然生物碱和生物活性化合物中。本文通过钯催化的非活化烯烃分子内Heck/胺化反应,构建了一系列螺吲哚啉骨架。该反应利用分子内固有的N-H部分作为亲核试剂,无需外加亲核试剂,以良好至中等的收率获得了目标产物。此外,我们还对该反应的不对称版本进行了初步尝试,最高以85%的收率和65%的ee值获得了具有光学活性的螺吲哚啉。该工作为螺吲哚啉的合成提供了一种新颖、简便的方法,具有潜在的药物化学应用价值。

关键词: 螺吲哚啉, 钯催化, Heck/胺化反应, 分子内环化

Spiroindolines are widely present in natural alkaloids and biologically active compounds. Herein, a palladium-catalyzed intramolecular Heck/amination of unactivated alkenes was developed to construct a series of spiroindoline frameworks. The reaction employs the intrinsic intramolecular N-H moiety as the sole nucleophile, affording the desired products in good to moderate yields. In addition, preliminary attempts toward an asymmetric version of this reaction have also been conducted, providing optically active spiroindolines in up to 85% yield and 65% ee. This work provides a novel and straightforward approach for the synthesis of spiroindolines with potential applications in medicinal chemistry.

Key words: Spiroindolines, Palladium-Catalyzed, Heck/Amination Reaction, Intramolecular Cyclization