Chinese Journal of Organic Chemistry ›› 2023, Vol. 43 ›› Issue (9): 3277-3286.DOI: 10.6023/cjoc202302005 Previous Articles     Next Articles

可见光诱导的自由基环化反应构建4-芳基-1,2-二氢萘类化合物

樊思捷a,b, 董武恒a,b,*(), 梁彩云b, 王贵超a,b, 袁瑶c, 尹作栋a,*(), 张兆国c,*()   

  1. a 广西大学化学化工学院 广西南宁 530004
    b 广西科技大学医学部 广西柳州 545006
    c 上海交通大学化学化工学院 上海 200240
  • 收稿日期:2023-02-05 修回日期:2023-04-20 发布日期:2023-05-05
  • 基金资助:
    广西科技大学人才启动基金(03190285); 广西科技基地与人才专项基金(桂科AD20238008)

Visible Light-Induced Radical Cyclization for the Construction of 4-Aryl-1,2-dihydronaphthalenes

Sijie Fana,b, Wuheng Donga,b(), Caiyun Liangb, Guichao Wanga,b, Yao Yuanc, Zuodong Yina(), Zhaoguo Zhangc()   

  1. a School of Chemistry and Chemical Engineering, Guangxi University, Nanning, Guangxi 530004
    b Medicine Center, Guangxi University of Science and Technology, Liuzhou, Guangxi 545006
    c School of Chemistry and Chemical Engineering, Shanghai Jiao Tong University, Shanghai 200240
  • Received:2023-02-05 Revised:2023-04-20 Published:2023-05-05
  • Contact: E-mail: wuheng190429@gxust.edu.cn;yinzhuod@gxu.edu.cn;zhaoguo@sjtu.edu.cn
  • Supported by:
    Start-Up Funding from Guangxi University of Science and Technology(03190285); Guangxi Science and Technology Base and Talent Special Project Fund (AD20238008)

An efficient visible light-induced radical tandem cyclization method for the synthesis of 4-aryl-1,2-dihydronaph- thalenes is reported. The target products were obtained by the radical tandem cyclization of different types of monosubstituted aryl acetylenes with simple bromomalonates as radical precursors. Compared to conventional nucleophilic addition reactions, the method was obtained under mild conditions by irradiation with 7 W blue light at room temperature using fac-Ir(ppy)3 as a photocatalyst. The reaction conditions are mild and the post-treatment is simple. This free radical triggered tandem cyclisation avails readily available bromomalonate esters and aryl alkynes as the starting materials. The method is very suitable for a wide range of substrates with good applicability to different bromomalonates and different alkynes.

Key words: visible light-induction, 4-aryl-1,2-dihydronaphthalenes, free radical tandem cyclisation