Evaluation of catalytic activity of imidazolo[1,2-a]pyridine derivatives: oxidation of catechol
作者： R. Saddik , M. Khoutoul , N. Benchat , B. Hammouti , S. El Kadiri
DOI: 10.1007/S11164-012-0561-6
关键词:
摘要: A series of heterocyclic compounds possessing imidazolo[1,2-a]pyridine moiety, namely, ethyl 7-methylimidazolo[1,2-a] pyridine-2-carboxylate L1; 2-(3-nitrophenyl)imidazo[1,2-a]pyridine L2; 3-(imidazo[1,2-a]pyridine-2-yl)aniline L3; 2-phenylimidazolo[1,2-a]pyridine-3carbaldehyde L4; and 2-phenylimidazo[1,2-a]pyridine L5 were synthesized. The in situ generated copper (II), iron zinc (II) complexes these (L1–L5) examined for their catalytic activities found to be effective catalysts the oxidation catechol o-quinone with atmospheric oxygen. present study reveals that rate depends on four parameters: nature ligand, transition metals, ion salts, concentration complex. combination L2(Cu(CH3COO)2) gives highest rate.
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