Borataalkene Hydrofunctionalization Reactions

The
hydrofunctionalization of alkenes is a foundational class of
reactions; however, the analogous reactions for BC bond-containing
species have been virtually unexplored. This work unearths a range
of BC hydrofunctionalization reactions with the 9-borataphenanthrene
anion, including hydroalkylation, hydroarylation, hydroalkynylation,
hydroamination, hydroalkoxylation, and hydration. The unique reactivity
represents an addition to the synthetic chemist’s toolbox to
access functionalized tetracoordinate borates.