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Polycyclic Aromatic Compounds Volume 40, 2020 - Issue 3
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Original Articles

Nano-Mn-[3-Nitrophenyl-Salicylaldimine-Methyl Pyranopyrazole] Cl2 as a New Schiff Base Complex and Catalyst

Ahmad Reza Moosavi-ZareDepartment of Chemistry, Sayyed Jamaleddin Asadabadi University, Asadabad, IranCorrespondence[email protected]
,
Hamid GoudarziafsharDepartment of Chemistry, Sayyed Jamaleddin Asadabadi University, Asadabad, Iran
&
Marzieh AlidadiDepartment of Chemistry, Sayyed Jamaleddin Asadabadi University, Asadabad, Iran
Pages 862-874 | Received 06 Mar 2017, Accepted 20 Jul 2018, Published online: 24 Jan 2019
 
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Abstract

By the reaction of 3-nitrobenzaldehyde with ethyl acetoacetate, malononitrile and hydrazine hydrate, pyranopyrazole derivative as an active biological compound was prepared and then reacted with salicylaldehyde and MnCl2·4H2O to give nano-Mn-[3-nitrophenyl-salicylaldimine-methylpyranopyrazole]Cl2 (nano-[Mn-3NSMP]Cl2). The presented nano-Schiff base complex was fully characterized by Fourier-transform infrared spectroscopy (FT-IR), X-ray diffraction (XRD), thermal gravimetric analysis (TGA), differential thermal gravimetric (DTG), scanning electron microscope (SEM), and energy dispersive X-ray analysis (EDX) and applied as an efficient and new catalyst for the synthesis of 1,2,4,5-tetrasubstituted-imidazoles.

Graphical Abstract

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