Adding HClO to [(BnTPEN)Mn-OO] in MeOH generates a short-lived Mn-OOH species, which converts to a putative MnO species. The potent MnO species in MeCN oxidizes the pendant phenyl ring of the ligand in an intramolecular fashion. The addition of benzene causes the formation of (BnTPEN)Mn-phenolate. These findings suggest that high valent Mn species have the potential to catalyze challenging aromatic hydroxylation reactions.
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