Lewis Acidic UiO‐67 as a Catalyst for the Hydroboration of Aldehydes

The catalytic activity of pristine UiO‐67 has been explored for the hydroboration of a wide scope of aryl aldehydes, including both substituted and α,β‐unsaturated, in short time frames with high conversions and selectivity in the presence of HBpin. Tests for hidden borane catalysts amongst other constituents were carried out to prove no free BH 3 , zirconium or ligand were participating in the reaction, and that the MOF is the active catalyst in these reactions. Recyclability tests showed minimal reduction in activity after seven runs, but no complete degradation of the system.