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Redox-Neutral Borylation of Aryl Sulfonium Salts via C-S Activation Enabled by Light
Chen Huang1, Jie Feng1, Rui Ma1
1Department of Chemistry , China Pharmaceutical University , 24 Tong Jia Xiang , Nanjing , 210009 , P. R. China.
Abstract:
Reported here is a novel photoinduced strategy for the borylation of aryl sulfonium salts using bis(pinacolato)diboron as the boron source. This method exploits redox-neutral aryl sulfoniums to gain access to aryl radicals via C-S bond activation upon photoexcitation under transition-metal-free conditions. Therefore, it grants access to diverse arylboronate esters with good performance from easily available aryl sulfoniums accompanied by mild conditions, operational simplicity, and easy scalability.
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