Interestingly, Bi(4-OMeEtbipy)-HVI provided the product in much lower yields in comparison to Bi(4-CO2Etbipy)-HVI (entry 7). This revealed that electronic effects within the bipyridine ligand might play a crucial role in the efficiency of the oxidation. It was also interesting to note that the reaction employing pyridine-ligated PhI(O)(Py)2(OTf)2 only returned unreacted starting material, indicating a bidentate ligand may also be required for desired dearomatization.