Observational analysis shows bond activation reactions with frustrated Lewis pair involving a bulky boron compound, implying its unique reactivity.
Carboranyl substituted boranes are attractive Lewis acids for frustrated Lewis pair (FLP) chemistry due to their tremendous bulk and high Lewis acidity. In FLP chemistry, secondary boranes are uncommon Lewis acids due to the limited bulk. In this work, we interrogate bis(1-methyl-ortho-carboranyl)borane as a Lewis acid in FLP chemistry that reveals the secondary borane is sufficiently bulky to preclude adduct formation with a variety of Lewis bases and can be applied in bond activation reactions.
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Vashisth et al. (2025) studied this question.
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