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电子上转换的基本原理及其在有机催化中的应用

朱文慧, 杨金东*   

  1. 清华大学化学系基础分子科学中心 北京 100084
  • 收稿日期:2025-06-30 修回日期:2025-07-31
  • 基金资助:
    国家自然科学基金(No. 22222106, 22193011, 和22393891)资助项目.

Fundamentals of electron upconversion and its applications in organocatalysis

Zhu Wenhui, Yang Jin-Dong*   

  1. Center of Basic Molecular Science, Department of Chemistry, Tsinghua University, Beijing, 100084
  • Received:2025-06-30 Revised:2025-07-31
  • Contact: * E-mail: jdyang@mail.tsinghua.edu.cn
  • Supported by:
    National Natural Science Foundation of China (No. 22222106, 22193011, and 22393891).

Photon upconversion, an anti-Stokes process that elevates photon energy, has become indispensable in photonic materials and optoelectronic devices. Inspired by this physical phenomenon, chemists have recently transposed its fundamental concept to organic catalysis, establishing electron upconversion as an innovative catalytic paradigm. The thermodynamic and kinetic advantages of electron upconversion originate from two key features: (1) radical transformations exhibit significantly reduced energy release and accelerated reaction rates compared to ground-state processes; (2) the upconverted intermediates complete catalytic cycles via facile electron transfer mechanisms. Three principal electron upconversion strategies have been developed: molecular dissociation (e.g., homolytic bond cleavage), molecular association (e.g., three-electron bond formation), and super-electron-donor systems. These groundbreaking approaches have demonstrated remarkable efficacy in pivotal organic transformations including C-N cross-coupling and Si-Si bond activation, opening new avenues for sustainable catalysis development. This article provides a comprehensive discussion of the theoretical mechanisms (including thermodynamic and kinetic fundamentals), reaction types, and applications in catalytic synthesis, while also summarizing cutting-edge developments in related fields.

Key words: electron upconversion, dissociation, association, super-electron-donors, reductants