Photoredox/Nickel-Catalyzed Single-Electron Tsuji-Trost Reaction: Development and Mechanistic Insights.

Photoredox/Nickel-Catalyzed Single-Electron Tsuji-Trost Reaction: Development and Mechanistic Insights.
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DOI:
10.1002/anie.201809919
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发表时间:
2018-11-26
期刊:
Angewandte Chemie (International ed. in English)
影响因子:
--
通讯作者:
Molander GA
Molander GA
中科院分区:
其他
文献类型:
--
作者:
Matsui JK;Gutiérrez-Bonet Á;Rotella M;Alam R;Gutierrez O;Molander GA

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A regioselective, nickel-catalyzed photoredox allylation of secondary, benzyl, and α-alkoxy radical precursors is disclosed. Through this manifold, a variety of linear allylic alcohols and allylated monosaccharides are accessible in high yields under mild reaction conditions. Quantum mechanical calculations [DFT and DLPNO-CCSD(T)] support the mechanistic hypothesis of a Ni(0) to Ni(II) oxidative addition pathway followed by radical addition and inner-sphere allylation. Shining New Light. Herein, we report a highly regioselective, intermolecular, nickel-catalyzed photoredox allylic substitution that expands both the radical and electrophile scope of dual photoredox/Ni-catalyzed reactions. Quantum mechanical calculations shed light on the disclosed mechanistic pathway, supporting a Ni(0) to Ni(II) oxidative addition followed by an inner-sphere radical addition.
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