Oxidation of a monophenol and two o-diphenols catalyzed by a novel copper-metallated nucleobase polymeric matrix has been observed. This polymer is insoluble in common organic solvents, and thus, catalysis is heterogeneous in nature. Synthesis and characterization of metallated polymer, kinetic profile of catalytic oxidation of an activated monophenol and o-diphenols and catalyst recycling experiments are described.