Fe3-xTixO4-supported sulfamic acid nanoparticles: New magnetic nanocatalyst for the synthesis of hexahydroquinolines
| Autor: | Omolbanin Badalkhani, Mehdi Jaymand, Masoumeh Ghaemi, Younes Abbasi, Davood Azarifar, Mohammad Ali Zolfigol |
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| Rok vydání: | 2019 |
| Předmět: |
chemistry.chemical_classification
Organic Chemistry Condensation reaction Biochemistry Catalysis Inorganic Chemistry chemistry.chemical_compound chemistry Dimedone Materials Chemistry Sulfamic acid Magnetic nanoparticles Physical and Theoretical Chemistry Fourier transform infrared spectroscopy Ammonium acetate Alkyl Nuclear chemistry |
| Zdroj: | Journal of Organometallic Chemistry. 895:55-63 |
| ISSN: | 0022-328X |
| DOI: | 10.1016/j.jorganchem.2019.05.020 |
| Popis: | A novel acidic nanocatalytic system, sulfamic acid-functionalized Fe3-xTixO4 magnetic nanoparticles (MNPs), were synthesized through one-pot reaction of Fe3-xTixO4 MNPs with 3-chloropropyltrimethoxysilane and imidazolidine-2,4-dione followed by functionalization with chlorosulfonic acid. The structure of this newly synthesized nanocatalyst was established by several analysis methods including, Fourier-transform infrared (FTIR) and energy-dispersive X-ray (EDX) spectroscopies, transmission (TEM) and scanning (SEM) electron microscopies, thermal gravimetric (TG), X-ray diffraction (XRD), and vibrating sample magnetometer (VSM). The potential catalytic ability of this nanocatalyst was evaluated in one-pot four-component condensation reaction between aromatic aldehydes, dimedone, alkyl acetoacetates and ammonium acetate in order to synthesis of hexahydroquinoline derivatives. The reactions proceeded smoothly under solvent-free condition offering excellent yields of corresponding hexahydroquinolines successfully. In addition, the fabricated nanocatalyst exhibited excellent reusability up to four subsequent runs. |
| Databáze: | OpenAIRE |
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