EFFECTS OF SUPPORTS AND PREPARATION METHODS OF HETEROGENIZED FeCl3 CATALYSTS IN THE OXIDATION OF 3,5-DI-TERT-BUTYLCATECHOL IN APROTIC SOLVENTS

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Abstract
FeCl3-catalyzed oxidation of 3,5-di-t-butylcatechol (DTBC) to 3,5-di-t-butyl-o-benzoquinone (DTBQ) by molecular oxygen in tetrahydrofuran (THF) was significantly promoted by addition of SiO2, γ-Al2O3, and active carbon in situ. Activity of catalysts prepared by an impregnation method in water or THF was greatly dependent on the supports and solvents used for preparation of the catalysts.

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