Catalytic Hydroxylation of Phenols using Schiff base complex of Copper metal complexes derived from L-histidine

Abstract

A new Schiff base metal complex of  quinoxiline 2-carboxyaldehyde and L-histidine was prepared. The resulting complex was analyzed through different physiochemical techniques like elemental analysis, molar  conductivity measurement ,Thermo gravimetry and differential gravimetry technique, FT-IR, EPR spectrum etc. The catalytic application of the complex was checked in liquid phase hydroxylation of phenols. The effect of different physical and chemical parameters like effect of catalyst amount and oxidant ,effect temperature were also recorded. It was found the catalyst is suitable for caring out the liquid phase oxidation of phenols. The catalyst gives more than 40%  oxidation product conversion.