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Scalable, Metal- and Additive-Free, Photoinduced Borylation of Haloarenes and Quaternary Arylammonium Salts

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posted on 25.02.2016, 00:00 by Adelphe M. Mfuh, John D. Doyle, Bhuwan Chhetri, Hadi D. Arman, Oleg V. Larionov
We report herein a simple, metal- and additive-free, photoinduced borylation of haloarenes, including electron-rich fluoroarenes, as well as arylammonium salts directly to boronic acids. This borylation method has a broad scope and functional group tolerance. We show that it can be further extended to boronic esters and carried out on gram scale as well as under flow conditions.