Iridium‐Catalyzed
<i>ortho</i>
‐Selective Borylation of Aromatic Amides Enabled by 5‐Trifluoromethylated Bipyridine Ligands
作者:Daniel Marcos‐Atanes、Cristian Vidal、Claudio D. Navo、Francesca Peccati、Gonzalo Jiménez‐Osés、José L. Mascareñas
DOI:10.1002/anie.202214510
日期:——
position 5 of a bipyridine ligand promotes a dramatic change in regioselectivity in the iridium-catalyzed borylation of benzamides and derivatives, from meta/para to ortho-substitution. Computational and experimental data suggest that this effect is associated with unusual outer-sphere dispersion interactions between the carbonyl group of the substrate and the CF3-bipy ring of the ligand.