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Synthesis of Novel Azo-Linked 5-Amino-Pyrazole-4-Carbonitrile Derivatives Using Tannic Acid-Functionalized Silica-Coated Fe₃O₄ Nanoparticles as a Novel, Green, and Magnetically Separable Catalyst.

ABSTRACT: Tannic acid-linked silica-coated Fe₃O₄ nanoparticles (Fe₃O₄@SiO₂@Tannic acid) were prepared and characterized by transmission electron microscope (TEM), field emission scanning electron microscope (FE-SEM), X-ray powder diffraction (XRD), X-ray spectroscopy (EDX), vibrating sample magnetometry (VSM), and Fourier transform infrared (FT-IR) spectroscopy. Fe₃O₄@SiO₂@Tannic acid supplies an environmentally friendly procedure for the synthesis of some novel 5-amino-pyrazole-4-carbonitriles through the three-component mechanochemical reactions of synthetized azo-linked aldehydes, malononitrile, and phenylhydrazine or p-tolylhydrazine. These compounds were produced in high yields and at short rea

SUBMITTER: Pashaki FS

PROVIDER: S-EPMC8633510 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature

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Synthesis of Novel Azo-Linked 5-Amino-Pyrazole-4-Carbonitrile Derivatives Using Tannic Acid-Functionalized Silica-Coated Fe₃O₄ Nanoparticles as a Novel, Green, and Magnetically Separable Catalyst.

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Synthesis of Novel Azo-Linked 5-Amino-Pyrazole-4-Carbonitrile Derivatives Using Tannic Acid-Functionalized Silica-Coated Fe3O4 Nanoparticles as a Novel, Green, and Magnetically Separable Catalyst.

OmicsDI is part of the ELIXIR infrastructure

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Synthesis of Novel Azo-Linked 5-Amino-Pyrazole-4-Carbonitrile Derivatives Using Tannic Acid-Functionalized Silica-Coated Fe₃O₄ Nanoparticles as a Novel, Green, and Magnetically Separable Catalyst.