Synthesis

Rapid conversion of phenols to p-benzoquinones under acidic conditions with lead dioxide

K Omura

Index: Omura, Kanji Synthesis, 1998 , # 8 p. 1145 - 1148

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Citation Number: 21

Abstract

Abstract: Treatment of 4-unsubstituted and 4-halogenated phenols with PbO2 and 70% HClO4 in AcOH afforded the corresponding p-benzoquinones in fair to high yields. The oxidation of 4-substituted 2, 6-di-tert-butylphenols 6 with PbO2 and 70% HClO4 in acetone gave 2, 6-di-tert-butyl-p-benzoquinone (2). Key words: p-benzoquinones, phenols, lead dioxide, 70% HClO4