Metal-free, visible-light-mediated direct C-H arylation of heteroarenes with aryl diazonium salts.

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Abstract

Visible light along with 1 mol % eosin Y catalyzes the direct C-H bond arylation of heteroarenes with aryl diazonium salts by a photoredox process. We have investigated the scope of the reaction for several aryl diazonium salts and heteroarenes. The general and easy procedure provides a transition-metal-free alternative for the formation of aryl-heteroaryl bonds.

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PubMed ID:: 22296099

DOI:: 10.1021/ja212099r

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