Magnesium Borohydride Confined in a Metal–Organic Framework: A Preorganized System for Facile Arene Hydroboration†
This work was supported by EPSRC grant number EP/C511794. Dr. D. Bradshaw is thanked for assistance with air-sensitive TGA analysis and Dr. A Ganin with Raman spectroscopy.
Graphical Abstract
In close quarters: When confined in a metal–organic framework, magnesium borohydride reacts with arenes by a hydroboration pathway (see scheme), in contrast to its reactivity under analogous homogeneous solution-phase conditions. Framework-imposed organization of the reactive groups is required, which is achieved by a combination of the metal coordination and two hydrogen bonds.
Abstract
In close quarters: When confined in a metal–organic framework, magnesium borohydride reacts with arenes by a hydroboration pathway (see scheme), in contrast to its reactivity under analogous homogeneous solution-phase conditions. Framework-imposed organization of the reactive groups is required, which is achieved by a combination of the metal coordination and two hydrogen bonds.
