The Direct Dimesitylborylation of Benzofuran Derivatives via an Iridium-Catalyzed C–H Activation with Silyldimesitylborane
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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.