Visible Light‐Induced C‐5 Selective C—H Radical Borylation of Imidazopyridines with NHC‐Boranes

Comprehensive SummaryA visible‐light‐induced C‐5 selective C—H borylation of imidazo[1,2‐a]pyridines with NHC‐BH3 via Minisci‐type radical borylation reaction has been developed for the first time. The present sustainable protocol provides a new family of regioselectively C5‐borylated imidazopyridin...

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Veröffentlicht in:Chinese journal of chemistry 2023-01, Vol.41 (2), p.193-198
Hauptverfasser: Zheng, Huitao, Lu, Hao, Su, Chaobo, Yang, Runlong, Zhao, Limin, Liu, Xiang, Cao, Hua
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Sprache:eng
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Zusammenfassung:Comprehensive SummaryA visible‐light‐induced C‐5 selective C—H borylation of imidazo[1,2‐a]pyridines with NHC‐BH3 via Minisci‐type radical borylation reaction has been developed for the first time. The present sustainable protocol provides a new family of regioselectively C5‐borylated imidazopyridines that would otherwise be difficult to prepare. It is a supplement to site‐selective borylation of azines (nitrogen‐containing aromatic heterocycles) and the assembly of sp2 carbon‐boron bond.
ISSN:1001-604X
1614-7065
DOI:10.1002/cjoc.202200568