A highly reducing metal-free photoredox catalyst: design and application in radical dehalogenations

A highly reducing metal-free photoredox catalyst: design and application in radical dehalogenations

Here we report the use of 10-phenylphenothiazine (PTH) as an inexpensive, highly reducing metal-free photocatalyst for the reduction of carbon-halogen bonds via the trapping of carbon-centered radical intermediates with a mild hydrogen atom donor. Dehalogenations were carried out on various substrat...

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Veröffentlicht in:Chemical communications (Cambridge, England) England), 2015-07, Vol.51 (58), p.11705-11708
Hauptverfasser: Discekici, Emre H, Treat, Nicolas J, Poelma, Saemi O, Mattson, Kaila M, Hudson, Zachary M, Luo, Yingdong, Hawker, Craig J, de Alaniz, Javier Read
Format: Artikel
Sprache:eng
Schlagworte:
Catalysts
Chemical bonds
Hydrogen atoms
Photocatalysis
Radicals
Reduction
Trapping
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Zusammenfassung:Here we report the use of 10-phenylphenothiazine (PTH) as an inexpensive, highly reducing metal-free photocatalyst for the reduction of carbon-halogen bonds via the trapping of carbon-centered radical intermediates with a mild hydrogen atom donor. Dehalogenations were carried out on various substrates with excellent yields at room temperature in the presence of air.
ISSN:1359-7345
1364-548X
1364-548X
DOI:10.1039/c5cc04677g