Phenolic oxidations with phenyliodonium diacetate

Abstract
Phenyliodonium diacetate (PIDA) in methanol interacts smoothly with phenols to yield p-quinones, o-quinones, 4,4-dialkoxycyclohexa-2,5-dienones or-4-alkyl-4-alkoxycyclohexa-2,5-dienones, dependant on the constitution of the phenolic substrate. The reactions proceed in mild conditions and good yields and are synthetically useful.

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