4.7 Article

Regioselective intramolecular sp2 C-H amination: direct vs. mediated electrooxidation

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ORGANIC CHEMISTRY FRONTIERS
卷 8, 期 7, 页码 1581-1586

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ROYAL SOC CHEMISTRY
DOI: 10.1039/d0qo01584a

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  1. Natural Science Foundation of China [21702113]
  2. Thousand Talents Plan of Central Plains

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An electrochemical intramolecular C-H amination approach was developed to construct benzimidazole-fused phenanthridines. This method is compatible with a variety of functional groups and can achieve high regioselectivities under oxidant- and metal-free conditions. It provides an alternative pathway for accessing organic luminophores.
We reported an electrochemical intramolecular C-H amination approach to construct benzimidazole-fused phenanthridines. This electrochemical approach was compatible with a variety of functional groups, including ester, silyl, thioether, pyridyl and amine groups. With the triarylamine-mediated and direct oxidation strategies, the intramolecular C-H amination proceeds with high regioselectivities under oxidant- and metal-free conditions. Moreover, this protocol provided an alternative approach to access organic luminophores.

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