有机化学 ›› 2025, Vol. 45 ›› Issue (8): 2913-2922.DOI: 10.6023/cjoc202412025 上一篇    下一篇

研究论文

电子供体-受体复合物(EDA)介导N-芳基丙烯酰胺与芳基硫鎓盐的自由基环化反应

解人杰a, 谢复开b, 孙然a,*(), 王欣a, 王钰佳a, 李蕾a, 王贺a,*()   

  1. a 辽宁石油化工大学 辽宁抚顺 113001
    b 中国科学院大连化学物理研究所 辽宁大连 116021
  • 收稿日期:2024-12-25 修回日期:2025-03-07 发布日期:2025-03-31
  • 基金资助:
    国家自然科学基金(21801105); 辽宁省教育厅基本科研(JYTMS20231433); 辽宁省教育厅基本科研(JYTMS20231451)

Electron Donor-Acceptor (EDA) Complexes Mediated Free Radicals Cyclization of N-Arylacrylamide with Arylthionium Salts

Renjie Xiea, Fukai Xieb, Ran Suna,*(), Xin Wanga, Yujia Wanga, Lei Lia, He Wanga,*()   

  1. a Liaoning Petrochemical University, Fushun, Liaoning 113001
    b Dalian Institute of Chemical Physics, Dalian, Liaoning 116021
  • Received:2024-12-25 Revised:2025-03-07 Published:2025-03-31
  • Contact: *E-mail:hewang@lnpu.edu.cn;sunran@lnpu.edu.cn
  • Supported by:
    National Natural Science Foundation of China(21801105); General Program of the Education Department of Liaoning Province(JYTMS20231433); General Program of the Education Department of Liaoning Province(JYTMS20231451)

在无光催化剂的条件下, 利用芳基硫鎓盐与N-芳基丙烯酰胺类化合物所形成的电子供体-受体(EDA)复合物, 在光诱导下合成了一系列具有潜在生物活性的吲哚酮类化合物. 该反应通过光激发EDA复合物形成芳基自由基, 分别经历自由基加成和分子内环化等历程得到目标产物, 该反应表现出较高的区域选择性. 最后, 通过反应机理的初步研究, 提出了自由基串联反应可能的催化循环机理.

关键词: 电子供体-受体复合物, 无光催化剂, 芳基硫鎓盐, N-芳基丙烯酰胺, 吲哚酮类化合物

A series of potentially bioactive indolones were synthesized under light irradiation via catalyst-free electron donor-acceptor (EDA) complexes formed between arylthionium salts and unsaturated arylamide compounds. The photoexcited EDA complex generated an aryl radical, which subsequently underwent radical addition followed by intramolecular cyclization to yield the desired products. The reaction exhibited high regioselectivity. Additionally, based on preliminary studies of the reaction mechanism, a plausible catalytic cycle for the tandem radical reaction has been proposed.

Key words: electron donor-acceptor complexes, photocatalyst-free, aryl thianthrenium salts, N-arylacrylamides, indolones