Abstract
New mononuclear Cu(II) complexes with Schiff base derived from salicylaldehyde condensed with alanine (Ala), phenylalanine (Fen), glycine (Gli) and histidine (His) amino acids were synthesized and covalently anchored onto an amino-functionalized SBA-15 mesoporous silica in order to obtain efficient heterogeneous catalysts. The elemental, structural, textural and morphological characterization confirmed the structure of the synthesized complexes and their successful immobilization into the inner pore surface of the NH2-functionalized support without the loss of the mesoporous structure. The catalytic activity of the free or immobilized Cu(II) complexes was tested in oxidation of styrene with H2O2 under mild conditions with very good results.
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