Tuning the Photocatalytic Performance of Ruthenium(II) Polypyridine Complexes Via Ligand Modification for Visible-Light-Induced Phosphorylation of Tertiary Aliphatic Amines |
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Authors: | Dr Zafar Mahmood Jia He Shuqing Cai Zhanxiang Yuan Hui Liang Qian Chen Prof Yanping Huo Prof Burkhard König Prof Shaomin Ji |
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Institution: | 1. School of Chemical Engineering and Light Industry, Guangdong University of Technology, Guangzhou, 510006 P.R. China;2. Institut für Organische Chemie, Universität Regensburg, Universitätsstraße 31, D-93053 Regensburg, Germany |
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Abstract: | Tuning the redox potential of commonly available photocatalyst to improve the catalytic performance or expand its scope for challenging synthetic conversions is an ongoing demand in synthetic chemistry. Herein, the excited state properties and redox potential of commercially available Ru(bpy)3]2+ photocatalyst were tuned by modifying the structure of the bipyridine ligands with electron-donating/withdrawing units. The visible-light-mediated photoredox phosphorylation of tertiary aliphatic amines was demonstrated under mild conditions. A series of cross-dehydrogenative coupling reactions were performed employing the RuII complexes as photocatalyst giving the corresponding α-aminophosphinoxides and α-aminophosphonates via carbon-phosphorus (C−P) bond formation. |
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Keywords: | phosphorylation photoredox catalysis redox chemistry ruthenium visible light |
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