Volume 64, Issue 24 e202423795
Research Article

Alcohol Activation by Benzodithiolylium for Deoxygenative Alkylation Driven by Photocatalytic Energy Transfer

Bin-Qing He

Bin-Qing He

Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074 P.R. China

Both authors contributed equally to this work.

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Lu Zhao

Lu Zhao

Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074 P.R. China

Both authors contributed equally to this work.

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Jun Zhang

Jun Zhang

Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074 P.R. China

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Wen-Hui Bao

Wen-Hui Bao

Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074 P.R. China

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Mingjun Yang

Mingjun Yang

Computational R&D, Shenzhen Jingtai Technology Co., Ltd. (XtalPi), Shenzhen, 518000 P.R. China

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Xuesong Wu

Corresponding Author

Xuesong Wu

Hubei Key Laboratory of Bioinorganic Chemistry & Materia Medica, School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan, 430074 P.R. China

E-mail: [email protected]

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First published: 03 April 2025
Citations: 1

Graphical Abstract

1,3-Benzodithiolylium cation was identified as an alcohol-activating reagent for energy-transfer-driven deoxygenative radical alkylation, avoiding electron transfer. Photocatalytic deoxygenative coupling reactions of alcohols with diverse oxime carbonates involving selective C(sp3)─C(sp3) bond construction are presented, including energy-transfer-driven carboimination of alkenes, energy transfer (EnT)/nickel dual-catalyzed ring-opening cross-coupling, and cyclization cross-coupling.

Abstract

The 1,3-benzodithiolylium (BDT) cation was identified as an efficient hydroxyl-activating reagent for the photocatalytic deoxygenative radical functionalization of alcohols in the absence of any electron transfer process. A series of unprecedented photocatalytic energy transfer (EnT)-driven deoxygenative radical coupling reactions of alcohols with bifunctional oxime carbonates have been developed based on the activation by BDT. Nickel-catalyzed radical sorting followed by C(sp3)─C(sp3) bond construction facilitates the heteroselective cross-coupling of two distinct alkyl radicals originating from parallel radical relays. These reactions allow the versatile synthesis of diverse nitrogen-containing molecules, including amino acid derivatives, imines, nitriles, and pyrrolines, by using ubiquitous alcohols as regiodefined alkyl building blocks.

Conflict of Interests

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available in the supplementary material of this article.

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