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Cooperative Cu/azodiformate system-catalyzed allylic C–H amination of unactivated internal alkenes directed by aminoquinoline

Author

Listed:
  • Le Wang

    (Shanghai Jiao Tong University)

  • Cheng-Long Wang

    (Shanghai Jiao Tong University)

  • Zi-Hao Li

    (Shanghai Jiao Tong University)

  • Peng-Fei Lian

    (Shanghai Jiao Tong University)

  • Jun-Chen Kang

    (Shanghai Jiao Tong University)

  • Jia Zhou

    (Shanghai Jiao Tong University)

  • Yu Hao

    (Shanghai Jiao Tong University)

  • Ru-Xin Liu

    (Shanghai Jiao Tong University)

  • He-Yuan Bai

    (Shanghai Jiao Tong University)

  • Shu-Yu Zhang

    (Shanghai Jiao Tong University)

Abstract

Aliphatic allylic amines are common in natural products and pharmaceuticals. The oxidative intermolecular amination of C(sp3)-H bonds represents one of the most straightforward strategies to construct these motifs. However, the utilization of widely internal alkenes with amines in this transformation remains a synthetic challenge due to the inefficient coordination of metals to internal alkenes and excessive coordination with aliphatic and aromatic amines, resulting in decreasing the reactivity of the catalyst. Here, we present a regioselective Cu-catalyzed oxidative allylic C(sp3)-H amination of internal olefins with azodiformates to these problems. A removable bidentate directing group is used to control the regiochemistry and stabilize the π-allyl-metal intermediate. Noteworthy is the dual role of azodiformates as both a nitrogen source and an electrophilic oxidant for the allylic C-H activation. This protocol features simple conditions, remarkable scope and functional group tolerance as evidenced by >40 examples and exhibits high regioselectivity and excellent E/Z selectivity.

Suggested Citation

  • Le Wang & Cheng-Long Wang & Zi-Hao Li & Peng-Fei Lian & Jun-Chen Kang & Jia Zhou & Yu Hao & Ru-Xin Liu & He-Yuan Bai & Shu-Yu Zhang, 2024. "Cooperative Cu/azodiformate system-catalyzed allylic C–H amination of unactivated internal alkenes directed by aminoquinoline," Nature Communications, Nature, vol. 15(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-45875-y
    DOI: 10.1038/s41467-024-45875-y
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    References listed on IDEAS

    as
    1. He-Yuan Bai & Fu-Xin Tan & Tuan-Qing Liu & Guo-Dong Zhu & Jin-Miao Tian & Tong-Mei Ding & Zhi-Min Chen & Shu-Yu Zhang, 2019. "Highly atroposelective synthesis of nonbiaryl naphthalene-1,2-diamine N-C atropisomers through direct enantioselective C-H amination," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
    2. Liela Bayeh & Phong Q. Le & Uttam K. Tambar, 2017. "Catalytic allylic oxidation of internal alkenes to a multifunctional chiral building block," Nature, Nature, vol. 547(7662), pages 196-200, July.
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