A highly reducing metal-free photoredox catalyst: design and application in radical dehalogenations.
- Author(s): Discekici, Emre H;
- Treat, Nicolas J;
- Poelma, Saemi O;
- Mattson, Kaila M;
- Hudson, Zachary M;
- Luo, Yingdong;
- Hawker, Craig J;
- Read de Alaniz, Javier
- et al.
Published Web Locationhttps://doi.org/10.1039/c5cc04677g
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.