Highly efficient production of 2,3,5-trimethyl-1,4-benzoquinone using aqueous H2O2 and grafted Ti(IV)/SiO2 catalyst

The oxidation of 2,3,6-trimethylphenol with aqueous H2O2 over titanium( IV) grafted on commercial mesoporous silica produces 2,3,5-trimethyl- 1,4-benzoquinone, with nearly quantitative yield.