merad nourialouhibi samiraelkadiri sghirmissoum noureddineghalem said2013-02-262013-02-262012https://dspace.univ-tlemcen.dz/handle/112/1482A synthesis of functional multidendate ligand were elaborated.pyrazolecatecholasecatalysis tyrosinasecopper (II) complexesSTUDY OF THE CATALYTIC OXIDATION OF CATECHOL BY Cu(II) COMPLEXES OF NOVEL TRIPODAL LIGANDS