Catalytic Function of Cobalt(III) Complexes with N,N'-Disalicylideneethylenediamine on Oxygenation of t-Butylphenols

Article abstract of DOI:10.1246/bcsj.58.646

Catalytic oxygenation of t-butylphenols has been examined with the cobalt(III) complexes with N,N'-disalicylideneethylenediamine (H2salen), K, Na, K, PF6, and PF6.The CO3-complex showed a high catalytic activity while the other complexes a low or no catalytic activity.Based on electronic and ESR spectral investigation, it has been shown that the reaction is initiated by the direct oxidation of t-butylphenols by the CO3-complex through a phenolatocobalt(III) intermediate.