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Direct Photoexcitation of Xanthate Anions for Deoxygenative Alkenylation of Alcohols

Hong-Mei Guo, Bin-Qing He and Xuesong Wu*

*School of Chemistry and Chemical Engineering, Huazhong University of Science and Technology, Wuhan 430074, China, Email:

H.-M. Guo, B.-Q. He, X. Wu, Org. Lett., 2022, 24, 3199-3204.

DOI: 10.1021/acs.orglett.2c00889

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Xanthate salts are a unique class of visible-light-excitable alkyl radical precursors that act simultaneously as strong photoreductants and alkyl radical sources. Upon direct photoexcitation of xanthate anions, efficient deoxygenative alkenylation and alkylation of a wide range of primary, secondary, and tertiary alcohols have been achieved avoiding any photocatalysts.

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proposed mechanism

Key Words

alkenes, photochemistry

ID: J54-Y2022