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综述与进展

光氧化还原催化的C-糖基化反应

李晨, 焦毅, 施笑然, 杨毅强, 俞寿云*   

  1. 南京大学化学化工学院 生命分析化学国家重点实验室 南京 210023
  • 收稿日期:2024-08-05 修回日期:2024-10-04
  • 基金资助:
    国家自然科学基金委员会面上基金(No. 22171133)资助项目.

Photoredox-Catalyzed C-Glycosylation Reactions

Li Chen, Jiao Yi, Shi Xiaoran, Yang Yiqiang, Yu Shouyun*   

  1. State Key Laboratory of Analytical Chemistry for Life Science, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, China
  • Received:2024-08-05 Revised:2024-10-04
  • Contact: * E-mail: yushouyun@nju.edu.cn
  • Supported by:
    National Natural Science Founda- tion of China (No. 22171133).

光氧化还原催化已成为构建C-糖苷的一种多功能、高效的反应手段,为合成结构多样的C-糖基化合物提供了新途径。利用这一温和绿色的合成工具已经合成了官能团多样化的C-糖苷类化合物,对糖类化学研究产生了促进性的影响。本综述对近年来利用光氧化还原催化构建C-糖苷反应的类型进行分类和系统总结,目前利用光氧化还原催化构建C-糖苷的反应模式分为:(a) 传统光催化剂参与的氧化还原反应;(b) 激发态过渡金属参与的氧化还原反应;(c) 光-金属协同催化的偶联反应;(d) 光激发电子供体-受体复合物介导的反应这四种类型。此外,本综述对涉及的反应机理也进行了较为详细的讨论。

关键词: 光氧化还原催化, 糖苷化, C-糖苷化, 糖基自由基

Photoredox catalysis has become a multifunctional and efficient reaction method for constructing C-glycosides, which provides a new pathway for synthesizing complicated carbohydrate. This mild green synthetic tool has been used to synthesize C-glycosides with diverse functional groups, which has had a promoting effect on carbohydrate chemistry research. This review categorizes the types of C-glycosidic reactions constructed through photoredox catalysis,where are four reaction modes in the area of constructing C-glycosides via photoredox catalysis in the past decade: (a) a conventional photoredox catalysis; (b) redox reactions involving excited-state transition metals; (c) dual photoredox/TM-catalyzed cross-coupling reaction; (d) light-excited electron donor-acceptor complex. In addition, it summarizes the different functionalized products of glycosylation, and provides a detailed description of the reaction mechanisms.

Key words: photoredox catalysis, glycosylation, C-glycosylation, glycosyl radicals