有机化学 ›› 2022, Vol. 42 ›› Issue (12): 3923-3943.DOI: 10.6023/cjoc202208044 上一篇    下一篇

所属专题: 自由基化学专辑

综述与进展

可见光促进的烯烃合成研究进展

高盼盼, 肖文精, 陈加荣*()   

  1. 华中师范大学化学学院 武汉 430079
  • 收稿日期:2022-08-31 修回日期:2022-10-06 发布日期:2022-10-24
  • 通讯作者: 陈加荣
  • 基金资助:
    国家自然科学基金(21971081); 国家自然科学基金(91856119)

Recent Progresses in Visible-Light-Driven Alkene Synthesis

Pan-Pan Gao, Wen-Jing Xiao, Jia-Rong Chen()   

  1. College of Chemistry, Central China Normal University, Wuhan 430079
  • Received:2022-08-31 Revised:2022-10-06 Published:2022-10-24
  • Contact: Jia-Rong Chen
  • Supported by:
    National Natural Science Foundation of China(21971081); National Natural Science Foundation of China(91856119)

烯烃及其功能化衍生物是有机合成中最基本的合成砌块之一, 同时也普遍存在于许多天然产物和功能材料中. 传统的合成方法包括Wittig烯烃化、Peterson烯烃化、Horner-Wadsworth-Emmons反应等, 这些反应已经成为教科书中的经典反应, 为烯烃的高效合成提供了诸多选择. 这些方法大多基于离子型的反应路径, 并且有些方法需要在形成 C—C双键的位点对起始原料进行预官能化, 导致反应效率和选择性较低. 可见光光氧化还原催化因其符合绿色化学要求, 以及大多涉及自由基中间体的独特反应机理模式, 近年来已逐步成为化学家们发展新颖合成方法学的重要平台. 主要介绍近年来在光化学合成烯烃方面的进展, 并对该领域的发展方向进行了展望.

关键词: 可见光, 光氧化还原催化, 自由基反应, 烯烃合成

Alkenes and their functionalized derivatives represent a versatile class of building blocks in organic synthesis. The traditional synthetic methods include Wittig olefination, Peterson olefination, Horner-Wadsworth-Emmons reaction and others, and many of these classic reactions have also become textbook knowledge. Most of these methods are based on ionic pathways and some still require pre-functionalization at the sites where C—C double bonds are formed, resulting some limitations on substrate scope or functional group tolerance. Over the past few years, photoredox catalysis has become a powerful platform for new reaction design owing to its green chemistry characteristics and unique activation modes. The recently developed and representative methods for the synthesis of alkenes under photochemical conditions are summarized. Moreover, the prospects of further developments are also discussed.

Key words: visible light, photoredox catalysis, radical reaction, alkene synthesis