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Stopping the rot! The selective oxidation of benzene to phenol with hydrogen peroxide is achieved by using a new zeolite catalyst (TS-1B), obtained by the modification of titanium silicalite with NH4HF2 and H2O2 (see scheme). The new catalyst, used in presence of a particular cosolvent (sulfolane) protects the produced phenol from overoxidation and dramatically enhances the selectivity of the reaction.
Balducci et al. (2003) studied this question.