Pincer complexes of late transition metals have been widely used in studies of stoichiometric and catalytic activation of carbon-hydrogen and carbon-heteroatom bonds. Our group recently demonstrated the impressive potential of Ir pincer complexes in C-H bond borylation of terminal alkynes and arenes. Studies of transformations that involve metal-boryl intermediates where the boryl group originates from a reagent have led us to consider alternative approaches to bond activation that incorporate boryl donors into supporting pincer ligands. We have discovered that activation C-H and other bonds of heteroatom-containing substrates is possible with selectivity controlled by the coordination of the heteroatom to the metal-bound boryl donor. The presentation will focus on the stoichiometric reactions and on the current efforts to optimize this type of reactivity for catalytic applications.

Bond activation reactions by boryl pincer complexes

2019 Spring National Meeting

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