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

作者:Discekici Emre H; Treat Nicolas J; Poelma Saemi O; Mattson Kaila M; Hudson Zachary M; Luo Yingdong; Hawker Craig J*; de Alaniz Javier Read
来源:Chemical communications, 2015, 51(58): 11705-11708.
DOI:10.1039/c5cc04677g

摘要

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.