Chitosan: An efficient biomacromolecule support for synergic catalyzing of Hantzsch esters by CuSO.

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ID: 98892
2016
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Abstract
The synergic effect of the chitosan biomacromolecule support for catalyzing of Hantzsch esters formation by CuSO has been demonstrated for one-pot and efficient pseudo-four-component reaction to afford a wide range of 1,4-dihydropyridine (DHP) or polyhydroquinoline (PHQ) derivatives. The desired products were simply prepared from different aldehydes, β-dicarbonyls and ammonium acetate in the presence of a low loading of chitosan supported copper(II) sulfate (CSCS) in EtOH under reflux conditions. The biodegradable CSCS catalyst was characterized by field emission scanning electron microscopy (FESEM) and energy-dispersive X-ray spectroscopy analysis (EDX) methods as well as coupled plasma-atomic emission (ICP-AE) and FT-IR spectroscopy. The CSCS catalyst is recyclable and reused four times without significant loss of its activity.
Reference Key
dekamin2016chitosaninternational Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors Dekamin, Mohammad G;Kazemi, Elham;Karimi, Zahra;Mohammadalipoor, Maryam;Naimi-Jamal, M Reza;
Journal International journal of biological macromolecules
Year 2016
DOI
S0141-8130(16)31512-4
URL
Keywords
green chemistry hantzsch esters biodegradable heterogeneous catalysis chitosan supported copper(ii) sulfate (cscs) multicomponent reactions (mcrs)

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