有机化学 ›› 2026, Vol. 46 ›› Issue (9): 3737-3747.DOI: 10.6023/cjoc202602019 上一篇    下一篇

研究论文

可见光诱导叔胺促进的烯烃酰基氟烷基化反应

曾添晴a, 倪宇阳a, 袁瑶a,*(), 朱钢国a,b,*()   

  1. a 浙江师范大学化学与材料科学学院 先进催化材料教育部重点实验室 浙江金华 321004
    b 金华职业技术大学制药工程学院 321017 浙江金华 浙江金华 321004
  • 收稿日期:2026-02-23 修回日期:2026-04-04 发布日期:2026-05-07
  • 基金资助:
    国家自然科学基金(22071218)

Visible-Light-Driven Tertiary Amine-Promoted Acylfluoroalkylation of Alkenes

Tianqing Zenga, Yuyang Nia, Yao Yuana,*(), Gangguo Zhua,b,*()   

  1. a Key Laboratory of the Ministry of Education for Advanced Catalysis Materials, College of Chemistry and Materials Science, Zhejiang Normal University, Jinhua, Zhejiang 321004
    b College of Pharmaceutical Engineering, Jinhua University of Vocational Technology, Jinhua, Zhejiang 321017
  • Received:2026-02-23 Revised:2026-04-04 Published:2026-05-07
  • Contact:
    * E-mail: ;
  • About author:

    Dedicated to the 100th anniversary of the birth of Professor Xikui Jiang.

  • Supported by:
    National Natural Science Foundation of China(22071218)

报道了一种可见光驱动的胺阳离子自由基介导的氢原子转移策略, 成功实现了烯基醛与溴代二氟乙酸酯的氟烷基化环化反应. 该方法通过原位形成电子给体-受体(EDA)复合物, 在温和条件下实现了醛到酮的直接转化, 并构建了含氟环状酮类化合物. 反应具有优异的官能团兼容性、广泛的底物适用性以及良好的产率. 机理研究表明, 胺阳离子自由基能够快速攫取烷氧基自由基α碳上的氢原子, 有效避免了竞争性的1,5-氢迁移(HAT)副反应.

关键词: 胺阳离子自由基, 氢原子转移(HAT), 醛酮转化, 自由基反应

A visible light-driven amine cation radical-mediated hydrogen atom transfer strategy was reported, successfully achieving the fluoroalkylation cyclization reaction of alkenal with bromodifluoroacetate. This method achieves the direct conversion of aldehydes to ketones under mild conditions by forming an electron donor-acceptor (EDA) complex in situ, and constructs fluorinated cyclic ketones. The reaction exhibits excellent functional group compatibility, broad substrate applicability, and good yield. Mechanistic studies indicate that the amine cation radical can rapidly abstract hydrogen atoms from the α-car- bon of alkoxy radicals, effectively avoiding the competitive 1,5-hydrogen atom transfer (HAT) side reaction.

Key words: amine radical cations, hydrogen atom transfer (HAT), aldehyde-to-ketone transformation, radical reaction