4.8 Article

Remote Allylation of Unactivated C(sp3)-H Bonds Triggered by Photogenerated Amidyl Radicals

Journal

ACS CATALYSIS
Volume 9, Issue 5, Pages 4627-4631

Publisher

AMER CHEMICAL SOC
DOI: 10.1021/acscatal.9b00563

Keywords

allylation; C(sp(3))-H; photocatalysis; delta-selectivity; radical; [1,5]-HAT

Funding

  1. Welch Foundation [I-1748]
  2. National Institutes of Health [R01GM102604]
  3. American Chemical Society Petroleum Research Fund [59177-ND1]
  4. Teva Pharmaceuticals Marc A. Goshko Memorial Grant [60011-TEV]
  5. Sloan Research Fellowship
  6. W. W. Caruth, Jr. Endowed Scholarship

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The allylation reaction is a highly versatile transformation in chemical synthesis. While many elegant direct C(sp(2))-H allylation reactions have been developed, the direct allylation of unactivated C(sp(3))-H bonds is underdeveloped. By applying photoredox catalysis and a [1,5]-HAT process, herein we report a direct allylation of unactivated C(sp(3))-H bonds. This photocatalyzed transformation is tolerant of several functional groups in the amide and allylic chloride substrates. Various allyl-substituted amide products were obtained with good yields and high delta-selectivity.

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