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[DPEPhosbcpCu]PF6: A General and Broadly Applicable Copper-Based Photoredox Catalyst
Published on: May 21, 2019
Harnessing Bifunctional N-Benzoyloxyamides for Photoredox Amidative Dual Functionalizations of Alkenes
Harin Ryoo1,2, Hyeyun Keum1,2, Dongwook Kim1,2
1Department of Chemistry, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, 34141, Republic of Korea.
Abstract:
Here, we present a photocatalytic strategy for the intermolecular dual functionalizations of alkenes using N─O bifunctional reagents in an atom-economical fashion. By leveraging N-benzoyloxyamides as bifunctional precursors for generating both amidyl radical and internal O-nucleophiles, this approach achieves chemoselective olefin amidation with simultaneous incorporation of additional functional groups. The current method readily accesses a range of doubly functionalized amino products through 1,2-amidooxygenation, amidoazidation, and formal anti-Markovnikov hydroamidation. Mechanistic studies revealed that the selective interplay of radical and ionic pathways is operative to enable a unified platform for this olefin dual functionalization.
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