Hydrodeoxygenation of Phenols to Form Cyclohexanes Catalyzed by Pt/H-beta in Ester Solvents under Mild Conditions

摘要

We have previously reported hydrodeoxygenation (HDO) of phenols to form cyclohexanes at 110 ℃ under ambient H2 pressure by using Pt/H-ZSM-5 catalyst and octane as a solvent; however, the low solubility of some phenols in octane is a major problem for expanding the scope of this reaction. Herein, we report that Pt/H-beta catalyzes the HDO using ester solvents which dissolve a wide range of phenols. The difference in HDO performance between the catalyst systems, Pt/H-beta in esters and Pt/H-ZSM-5 in octane, was also investigated. Furthermore, we have demonstrated that HDO of a phenol proceeds at 85 8C by Pt/H-beta in an ester solvent.