Nucleophilicity of a Base-Stabilized Borole Anion at the Boron Center



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A piece of the π: A nucleophilic carbene-stabilized boryl anion has been prepared by reduction (see scheme). Reactions of this boracycle indicated its nucleophilicity on a π orbital of the central boron atom. The significance of this work is presented along with a background on nucleophilic boron reagents and boracycles.