基于单电子转移的黄素仿生光催化氧化研究进展
Advances in Flavin-Inspired Photocatalytic Oxidations Involving Single Electron Transfer Process
沈都益 1李玲慧 2靳鸽 2梁雨佳 2张欣慧 2公培伟 2张范军 2晁绵冉2
作者信息
- 1. 曲阜师范大学化学与化工学院 生命有机分析山东省重点实验室 山东曲阜 273165;中国科学院兰州化学物理研究所 羰基合成与选择氧化国家重点实验室 兰州 730000
- 2. 曲阜师范大学化学与化工学院 生命有机分析山东省重点实验室 山东曲阜 273165
- 折叠
摘要
自然界的黄素辅酶具有结构简单、无毒、能吸收和利用可见光等特点,常常作为电子载体参与生物体内的氧化还原反应.受黄素催化氧化功能的启发,过去二十年里,黄素衍生物催化以氧气或双氧水为终端氧化剂的两电子氧化反应得到了长足发展;而近年来,由于黄素衍生物丰富易调控的光化学性质,更多的注意力开始转向它们所促进的单电子转移反应,相应的有机合成方法学也正在涌现.综述了截止到2023年7月的可见光驱动黄素衍生物催化诸如芳香环、含氮、含氧及含硫等官能团的单电子氧化,生成相应的阳离子自由基中间体再参与后续过程来实现多样化有机转化的相关进展.同时,对底物范围和单电子转移机理进行了讨论,并对该领域的未来发展进行了展望.
Abstract
Natural flavin coenzymes,featuring simple structure,non-toxicity,and the ability of absorbing and utilizing visible light,frequently act as electron carriers in biological redox reactions.Inspired by the biological function of flavins,great progress has been made in the two-electron oxidation reactions catalyzed by flavins with molecular oxygen or hydrogen peroxide as the terminal oxidant over the past two decades.Due to the versatile and tunable photochemical properties of artificial flavins,in recent years,more and more interests have been drawn to the photoinduced single electron transfer reactions with biomimetic flavins,promoting the rapid developments in the corresponding organic synthetic methodologies.Herein,the advances until July 2023 in bioinspired flavins-catalyzed one-electron oxidation of organic substrates bearing aromatic rings,nitrogen-,oxygen-,and sulfur-based groups under visible-light irradiation,delivering the corresponding radical cations which subsequently take part in the following reactions and enabling various of chemical transformations,are summarized.In addition,selected substrate scopes and possible reaction mechanisms involving single electron transfer process are discussed.Meanwhile,future challenges and opportunities of flavin photocatalysis are also prospected.
关键词
黄素/单电子氧化/单电子转移/自由基阳离子/有机光催化Key words
flavin/one-electron oxidation/single electron transfer/radical cation/organic photocatalysis引用本文复制引用
基金项目
国家自然科学基金(21802084)
国家自然科学基金(51805295)
国家自然科学基金(51905304)
山东省自然科学基金(ZR2019BB021)
山东省青创团队项目(2022KJ181)
山东省"泰山学者"项目()
出版年
2024
NETL
NSTL
万方数据