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研究论文

利用可见光引发1,6-烯炔的增环酰化双官能化制备1-茚酮衍生物

林风†,a,b, 张艳†,b, 吴明b, 刘会艳b,*, 郝文娟b, 姜波a,b,*   

  1. a江苏师范大学敬文书院 江苏徐州 221116;
    b江苏师范大学化学与材料科学学院 江苏徐州 221116
  • 收稿日期:2024-07-26 修回日期:2024-10-03
  • 作者简介:共同第一作者
  • 基金资助:
    国家自然科学基金(No. 22271123)和国家级大学生创新创业训练计划(No. 202310320033Z)资助项目.

Visible-Light-Induced Annulative Acylative Difunctionalization of 1,6-Enynes for Accessing 1-Indanones

Lin Feng†,a,b, Zhang Yan†,b, Wu Mingb, Liu Hui-Yanb,*, Hao Wen-Juanb, Jiang Boa,b,*   

  1. aC.W. Chu College, Jiangsu Normal University, Xuzhou, Jiangsu 221116;
    bSchool of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116
  • Received:2024-07-26 Revised:2024-10-03
  • Contact: * E-mail: liuhuiyan72@163.com, jiangchem@jsnu.edu.cn.
  • About author:These authors contributed equally to this work.
  • Supported by:
    National Natural Science Foundation of China (No. 22271123) and National College Students' Innovation and Entrepreneurship Training Program (No. 202310320033Z).

本文报道了一种新型光催化1,6-烯炔参与的增环酰化-双官能化反应,立体选择性地合成具有环季碳中心的酰基取代1-茚酮衍生物,收率中等至良好。该光催化反应通过调整酰基自由基前体类型,实现了不饱和烃的两类酰化官能化反应。当使用芳酰氯为双官能团试剂时,其与1,6-烯炔发生增环氯酰化反应,而使用酰基肟酯作为酰基自由基前体时,与醇和1,6-烯炔发生三组分增环烷氧基化酰化反应。目前方法展现出良好官能团相容性、广泛底物范围和温和反应条件。

关键词: 可见光催化反应, 增环氯酰化反应, 增环烷氧基化酰化反应, 1,6-烯炔衍生物

A new photocatalytic annulative acylative difunctionalization of 1,6-enynes is reported, enabling stereoselective access to acylated 1-indanones with cyclic quaternary centers in moderate to good yields. This photocatalysis enables two types of acylation of unsaturated hydrocarbons by adjusting the categories of acyl radical precursors. Aroyl chlorides as bifunctional reagents react with 1,6-enynes to realize annulative chloroacylation, while acyl oxime esters are used as acyl radical precursors, which undergo a three-component annulative alkoxyacylation by treatment with 1,6-enynes and alcohols. The current method demonstrates good functional group compatibility, a broad substrate scope and mild reaction conditions.

Key words: Photoredox catalysis, Annulative chloroacylation, Annulative alkoxyacylation, 1,6-Enynes