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Transition metal complexes of 2-(substituted-1H-pyrazole-4-yl)-1H-benzo[d]imidazoles: Synthesis and characterization
Journal of Chemical and Pharmaceutical Research
unpublished
Four novel monodentate 2-(3′-(4″-sub-aryl)-1′-phenyl-1H-pyrazole-4-yl)-1H-benzo[d]imidazole ligands (La-d) have been synthesized via the cyclocondensation of o-phenelyndiamine with 1,3-disubstituted pyrazole aldehydes by adding oxidizing agent ceria ammonium nitrate as catalyst in presence of hydrogen peroxide in alcoholic media. The non chelated Cu(II) and Ni(II) complexes of newly synthesized monodentate 2-substituted benzimidazole (La-d) ligands were prepared in 1:2-metal:ligand
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