(Diacetoxyiodo)benzene oxidises quinols and extended quinols to the corresponding quinones smoothly and in high yield. Excess of the reagent in methanol with monohydric phenols directly yields -quinone ketals, also in good yields. 4-Alkyl and 4-alkoxyphenols give the corresponding 4-alkyl-4-methoxycyclohexadienones and 4-alkoxy-4-methoxycyclohexadienones. ... (Diacetoxyiodo)benzene in methanol smoothly oxidises phenols in excellent yields.
