Hydrogen Atom Transfer Reactions via Photoredox Catalyzed Chlorine Atom Generation
- 19 October 2018
- journal article
- research article
- Published by Wiley in Angewandte Chemie
- Vol. 57 (48), 15664-15669
- https://doi.org/10.1002/anie.201810187
Abstract
The selective functionalization of chemically inert C‐H bonds remains to be fully realized in achieving organic transformations that are redox‐neutral, waste‐limiting, and atom‐economical. The catalytic generation of chlorine atoms from chloride ions is one of the most challenging redox processes, where the requirement of harsh and oxidizing reaction conditions renders it seldom utilized in synthetic applications. We report the mild, controlled, and catalytic generation of chlorine atoms as a new opportunity for access to a wide variety of hydrogen atom transfer (HAT) reactions owing to the high stability of HCl. The discovery of the photoredox mediated generation of chlorine atoms with Ir‐based polypyridyl complex, [Ir(dF(CF3)ppy)2(dtbbpy)]Cl, under blue LED irradiation is reported.Keywords
Funding Information
- Natural Sciences and Engineering Research Council of Canada (Discovery Grant)
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