Synthesis of 2, 3, 5-Trimethylbenzoquinone through Anodic Oxidation

Abstract

2, 3, 5 -Trimethyibenzoquinone (TMBQ) was prepared in about 90% yield through anodic oxidation of.2, 3, 6-trimethylphenol-4-sulfonic acid (TMPS) using 3.2 F/mol of electricity under a constant current density (8 mA/cm²) with a graphite plate as an anode in 40% aqueous acetone containing sulfuric acid [0.42 mol/l] in a divided cell, or in a two-phase reaction.