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Direct Dimesitylborylation of Benzofuran Derivatives by an Iridium-Catalyzed C−H Activation with Silyldimesitylborane |
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| Authors: | Ryosuke Shishido Dr Ikuo Sasaki Dr Tomohiro Seki Dr Tatsuo Ishiyama Prof Dr Hajime Ito |
| Institution: | 1. Division of Applied Chemistry, Graduate School of Engineering Hokkaido University, Kita 13 Nishi 8 Kita-ku, Sapporo, Hokkaido, 060-8628 Japan;2. Department of Chemistry and Bioscience, Faculty of Science and Technology, Aoyama Gakuin University, 5-10-1, Fuchinobe, Chuo-ku, Sagamihara, 252-5258 Japan |
| Abstract: | Direct dimesitylborylation of benzofuran derivatives by a C−H activation catalyzed by an iridium(I)/N-heterocyclic carbene (NHC) complex in the presence of Ph2MeSi-BMes2 afforded the corresponding dimesitylborylation products in good to high yield with excellent regioselectivity. This method provides a straightforward route to donor–(π-spacer)–acceptor systems with intriguing solvatochromic luminescence properties. |
| Keywords: | benzofuran C−H borylation dimesitylboryl group iridium catalyst silyldimesitylborane |