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Regioselective α-Phosphonylation of Unprotected Alicyclic Amines
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    Regioselective α-Phosphonylation of Unprotected Alicyclic Amines
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    Organic Letters

    Cite this: Org. Lett. 2024, 26, 28, 5972–5977
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    https://doi.org/10.1021/acs.orglett.4c02037
    Published July 5, 2024
    Copyright © 2024 American Chemical Society

    Abstract

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    Unprotected alicyclic amines undergo α-C–H bond phosphonylation via a two-stage one-pot process involving the oxidation of amine-derived lithium amides with simple ketone oxidants, generating transient imines which are then captured with phosphites or phosphine oxides. Amines with an existing α-substituent undergo regioselective α′-phosphonylation. Amine α-arylation and α′-phosphonylation can be combined, generating a difunctionalized product in a single operation.

    Copyright © 2024 American Chemical Society

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    This article is cited by 4 publications.

    1. Kamal Bhatt, Daniel Seidel. Cyclic Imine-BF3 Complexes as Precursors for Functionalized Azacycles. Synlett 2025, 36 (11) , 1435-1440. https://doi.org/10.1055/a-2538-2165
    2. Jie Liu, Xiaolan Li, Guisheng Chen, Haiqing Luo. Silver‐Catalyzed Oxidative Ring‐Opening of Cyclic Aliphatic Amines for C−H Alkylation of Cyclic Aldimines. Advanced Synthesis & Catalysis 2025, 367 (11) https://doi.org/10.1002/adsc.202500002
    3. Tiantian Zhang, Hexiang Wang, Liliang Huang, Junhai Huang, Huangdi Feng. A Cu/Cd-cocatalysed cascade reaction for constructing nitrogen-tethered 1,6-enynes enabled by 1,5-hydride transfer. Organic Chemistry Frontiers 2025, 23 https://doi.org/10.1039/D5QO00174A
    4. Timothy K. Beng, Ifeyinwa S. Anosike, Jasleen Kaur. Stereocontrolled and time-honored access to piperidine- and pyrrolidine-fused 3-methylenetetrahydropyrans using lactam-tethered alkenols. RSC Advances 2024, 14 (37) , 26913-26919. https://doi.org/10.1039/D4RA04916K

    Organic Letters

    Cite this: Org. Lett. 2024, 26, 28, 5972–5977
    Click to copy citationCitation copied!
    https://doi.org/10.1021/acs.orglett.4c02037
    Published July 5, 2024
    Copyright © 2024 American Chemical Society

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