Abstract
In this paper, 2-hydroxyethylammonium acetate (2-HEAA) was used as the first functionalized ionic liquid for the facile, economical and environmentally friendly synthesis of Fe3O4 nanoparticles by a co-precipitation method. The synthesized Fe3O4 nanoparticles were used as solid material for supporting 2-HEAA (Fe3O4-2-HEAA). The newly prepared Fe3O4-2-HEAA was characterized by TEM, XRD, FT-IR, TGA and elemental analysis and successfully applied as a magnetically recyclable heterogeneous catalyst for the efficient one-pot, three-component synthesis of 2-amino-3,5-dicarbonitrile-6-thio-pyridines. The catalyst was easily separated by an external magnet and reused at least five times without significant degradation in the activity.
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