4.5 Article

One-Pot Three-Component Synthesis of 2,4,5-Triaryl-1H-imidazoles Using Mn2+ Complex of [7-Hydroxy-4-methyl-8-coumarinyl] Glycine as a Heterogeneous Catalyst

Journal

CATALYSIS LETTERS
Volume 152, Issue 6, Pages 1769-1783

Publisher

SPRINGER
DOI: 10.1007/s10562-021-03717-2

Keywords

Three-component reaction; Heterogeneous catalyst; 2,4,5-Trisubstituted imidazoles; Manganese complex

Funding

  1. Shiraz University Research Council

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A highly efficient and simple method for synthesizing 2,4,5-trisubstituted imidazoles has been developed using a highly reusable support-free Mn2+ complex catalyst. The catalyst was characterized by various techniques and found to be stable, with the ability to be reused multiple times without significant loss of activity.
A highly efficient and simple synthesis of 2,4,5-trisubstituted imidazoles has been developed using highly reusable support-free Mn2+ complex of [7-hydroxy-4-methyl-8-coumarinyl] glycine as a heterogeneous catalyst via a one-pot three-component reaction of benzil, aldehydes and ammonium acetate as a nitrogen source. Moreover, this catalyst was characterized by various techniques such as field emission scanning electron microscope (FE-SEM), energy dispersive X-ray spectroscopy (EDX), FT-IR spectroscopy, powder X-ray diffraction (XRD), inductively coupled plasma (ICP) and thermal gravimetric analysis (TGA). Also, the catalyst is stable and could be reused for at least six times without significant loss of activity.

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