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Published on: August 18, 2020
meta-Selective C-H Activation of Arenes at Room Temperature Using Visible Light: Dual-Function Ruthenium Catalysis
Arunachalam Sagadevan1, Michael F Greaney1
1School of Chemistry, The University of Manchester, Oxford Road, Manchester, M13 9PL, UK.
Abstract:
Ruthenium-catalyzed meta-C-H activation of arenes at room temperature is reported to proceed under blue-light irradiation. A variety of heteroarenes are compatible with this photochemical process, which leads to the corresponding meta C-C coupling products in good to very good yields. Initial mechanistic studies suggest a single-electron transfer process occurs between a photoexcited RuII -cyclometalated complex and alkyl halides, enabling meta-C-H functionalization reaction via carbon-centered radicals.
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