Titanium superoxide catalyzed selective oxidation of phenols to <i>p</i>-quinones with aq. H₂O₂

Abstract

1530-1532Titanium superoxide, a novel heterogeneous and readily accessible catalyst, is found to catalyze the selective oxidation of phenols to the corresponding 1,4-benzoquinones in preparative yields with aq. 30% H2O2 as oxidant under mild reaction conditions