Efficient solvent-free synthesis of pyridopyrazine and quinoxaline derivatives using copper-DiAmSar complex anchored on SBA-15 as a reusable catalyst |
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Authors: | Marzieh Mohammadi Ghasem Rezanejade Bardajee Nader Noroozi Pesyan |
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Institution: | 1. Department of Chemistry, Faculty of Science, Urmia University, 57159, Urmia, Iran;2. Department of Chemistry, Payame Noor University, P.0. B0X, 19395-3697, Tehran, Iran |
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Abstract: | A catalytic system comprising mesoporous silica functionalized with Cu(II)-DiAmSar was synthe-sized. This was demonstrated as an efficient heterogeneous catalyst for the synthesis of biologically useful pyridopyrazine and quinoxaline heterocycles under solvent-free conditions. X-ray diffraction, transmission electron microscopy, N2 adsorption-desorption, Fourtier transformation infrared spectroscopy, and thermogravimetric analysis were used to characterize the catalyst and investi-gate the texture of SBA-15 during the grafting process. |
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Keywords: | DiAmSar SBA-15 Heterogeneous catalyst Pyridopyrazine Quinoxaline |
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