Gum-Supported Melamine: A Recyclable Reagent for Selective and Metal-Free Oxidation of Benzyl Alcohols

Abstract

: Here, novel melamine functionalized gum (gum@Melamine@Cu(II)) is synthesized and its catalytic performance is investigated in the oxidation of benzyl alcohols. The gum@Melamine was prepared through the grafting of 3-chloropropyltrimethoxysilane onto gum, followed by treatment with melamine. The synthesized gum@Melamine@Cu(II) was used to achieve an effective and selective method for the oxidation of different alcohols. All substituted benzyl alcohols were oxidized in good yields under mild conditions at room temperature. This gum@Melamine@Cu(II) has great stability and could be recycled five times without noteworthy loss of activity.