Autoxidation of 4-alkyl-2,6-di-t-butylphenols with di-(3-salicylideneaminopropyl)aminecobalt(II) catalyst
Abstract
Autoxidation of 4-alkyl-2,6-di-t-butylphenols (III) with di-(3-salicylideneaminopropyl)aminecobalt(II) catalyst in methanol gives the corresponding quinols, 4-alkyl-2,6-di-t-butyl-4-hydroxycyclohexa-2,5-dienones (IV), which are formed via the corresponding hydroperoxides (V).