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研究论文

光催化串联反应构建共价有机框架材料

牛丽菁, 吴成娟*, 梁文静, 耿琰*, 董育斌*   

  1. 山东师范大学化学化工与材料科学学院 济南 250014
  • 收稿日期:2024-07-24 修回日期:2024-10-28
  • 基金资助:
    国家自然科学基金(Nos. 22371172, 22101158, and 22171169)和山东省自然科学基金(No. ZR2021MB088)资助项目.

Construction of Covalent Organic Frameworks via Photocatalytic Cascade Reaction

Niu Lijing, Wu Chengjuan*, Liang Wenjing, Geng Yan*, Dong Yubin*   

  1. College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, Jinan, 250014
  • Received:2024-07-24 Revised:2024-10-28
  • Contact: * E-mail: yubindong@sdnu.edu.cn; gengyan@sdnu.edu.cn; wucj@sdnu.edu.cn
  • Supported by:
    National Natural Science Foundation of China (Nos. 22371172, 22101158, and 22171169), the Natural Science Foundation of Shandong Province (No. ZR2021MB088).

开发新型的共价有机框架(COFs)材料构建方法一直是当前的研究热点。光催化作为一种绿色温和的合成策略,最近已被应用于COFs的合成中,但是报道依然非常少。基于此,本研究借助光催化,以苄醇作为起始原料,通过光催化苄醇氧化与亚胺缩合串联反应,成功构建了包括TAPB-PDA-COF、TAPT-PDA-COF、TZ-BTCA-COF、COF-LZU1在内的一系列亚胺键连接的COFs。并且,利用TZ-BTCA-COF作为光催化剂,成功实现了光催化硫醚氧化反应,以良好的收率得到了亚砜产物。该工作不仅丰富了COFs的光催化合成方法,而且将COFs的构建单体范围扩展到了苄醇,为COFs的合成提供了新思路。

关键词: 共价有机框架, 光催化, 串联反应

Developing novel strategies for the construction of covalent organic frameworks (COFs) was always the focus of current research. Recently, the visible-light mediated photocatalysis has been introduced to produce COFs, due to its mild and green characteristics. However, there were still rare reports about the photocatalytic synthesis of COFs. Herein, a series of imine-linked COFs including TAPB-PDA-COF, TAPT-PDA-COF, TZ-BTCA-COF, and COF-LZU1 were successfully synthesized via the photocatalytic cascade reaction using the benzyl alcohols and amines as the starting materials. The reaction proceeded via the sequential photocatalytic oxidation of benzyl alcohols and imine condensation steps to generate the imine-linked COFs. Furthermore, the obtained TZ-BTCA-COF was employed as the photocatalyst to promote the photocatalytic oxidation of sulfides, affording sulfoxides in good yields. We believed that this work not only enriched the photocatalytic synthetic methodology of COFs, but also expanded the scope of monomers for COFs synthesis to benzyl alcohols, providing a new way for COFs synthesis.

Key words: covalent organic frameworks, photocatalysis, cascade reaction