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<p>Alkene 1,1-difunctionalization holds significant importance in organic synthesis due to its ability to effectively enhance the complexity and functionality of molecular frameworks. Herein, we report an electrochemical strategy for 1,1-difunctionalization of halogenated aromatics with unactivated alkenes using synergistic Fe/Ni catalysis. This system integrates redox activity of nickel with Lewis acid functionality of iron: the nickel catalyst governs aryl halide oxidative addition and alkene migration, while iron species activates catalytic sites, stabilizes radical acceptors, and precisely regulates electrochemical reduction sequences/selectivities. The reaction system is applicable to a wide range of substrates, including electron-rich and electron-deficient aryl halides, polycyclic compounds, and bioactive natural products (100 examples). Gram-scale synthesis maintains 63% yield, supporting industrial viability. Mechanistic studies elucidate the unique cooperativity of this iron-nickel bimetallic system, providing a theoretical framework for the design of diverse difunctionalization reactions.</p>

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Synergistic Fe/Ni catalysis for electrochemical 1,1-difunctionalization of alkenes

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2026年5月2日

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  • Pengwei Hu,
  • Chao Yang,
  • Lin Guo,
  • Wujiong Xia

摘要

Alkene 1,1-difunctionalization holds significant importance in organic synthesis due to its ability to effectively enhance the complexity and functionality of molecular frameworks. Herein, we report an electrochemical strategy for 1,1-difunctionalization of halogenated aromatics with unactivated alkenes using synergistic Fe/Ni catalysis. This system integrates redox activity of nickel with Lewis acid functionality of iron: the nickel catalyst governs aryl halide oxidative addition and alkene migration, while iron species activates catalytic sites, stabilizes radical acceptors, and precisely regulates electrochemical reduction sequences/selectivities. The reaction system is applicable to a wide range of substrates, including electron-rich and electron-deficient aryl halides, polycyclic compounds, and bioactive natural products (100 examples). Gram-scale synthesis maintains 63% yield, supporting industrial viability. Mechanistic studies elucidate the unique cooperativity of this iron-nickel bimetallic system, providing a theoretical framework for the design of diverse difunctionalization reactions.