SnO2/SiO2 nanocomposite catalyzed one-pot, four-component synthesis of 2-amino-3-cyanopyridines : research article
An efficient and rapid protocol for the synthesis of 2-amino-3-cyanopyridines by the cyclocondensation reaction of aromatic aldehydes, methyl ketones, malononitrile and ammonium acetate catalyzed by SnO2/SiO2 nanocomposite material at refluxed condition in ethanol was investigated. Nanocomposite (Sn...
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| Veröffentlicht in: | South African journal of chemistry 2012-01, Vol.65 (1), p.131-137 |
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| container_title | South African journal of chemistry |
| container_volume | 65 |
| creator | Tayde, Deepak T. Arbad, Balasaheb R. Yelwande, Ajeet A. Navgire, Madhukar E. Lande, Machhindra K. |
| description | An efficient and rapid protocol for the synthesis of 2-amino-3-cyanopyridines by the cyclocondensation reaction of aromatic aldehydes, methyl ketones, malononitrile and ammonium acetate catalyzed by SnO2/SiO2 nanocomposite material at refluxed condition in ethanol was investigated. Nanocomposite (SnO2/SiO2) catalytic material has been synthesized by using the sol-gel method. The prepared catalytic materials were characterized by using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), Brunauer-Emmer-Teller (BET) surface area, and temperature-programmed desorption of ammonia (NH3-TPD). Advantages of the present method include a simple work-up procedure, high yields of the products, low toxicity and easy recovery and reusability of the catalytic materials. |
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Nanocomposite (SnO2/SiO2) catalytic material has been synthesized by using the sol-gel method. The prepared catalytic materials were characterized by using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), Brunauer-Emmer-Teller (BET) surface area, and temperature-programmed desorption of ammonia (NH3-TPD). 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Nanocomposite (SnO2/SiO2) catalytic material has been synthesized by using the sol-gel method. The prepared catalytic materials were characterized by using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), Brunauer-Emmer-Teller (BET) surface area, and temperature-programmed desorption of ammonia (NH3-TPD). 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Nanocomposite (SnO2/SiO2) catalytic material has been synthesized by using the sol-gel method. The prepared catalytic materials were characterized by using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), Fourier transform infrared spectroscopy (FT-IR), Brunauer-Emmer-Teller (BET) surface area, and temperature-programmed desorption of ammonia (NH3-TPD). Advantages of the present method include a simple work-up procedure, high yields of the products, low toxicity and easy recovery and reusability of the catalytic materials.</abstract><pub>South African Chemical Institute (SACI)</pub><oa>free_for_read</oa></addata></record> |
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| ispartof | South African journal of chemistry, 2012-01, Vol.65 (1), p.131-137 |
| issn | 0379-4350 |
| language | eng |
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| source | DOAJ Directory of Open Access Journals; African Journals Online (Open Access); Sabinet African Journals Open Access Collection; EZB-FREE-00999 freely available EZB journals; Free Full-Text Journals in Chemistry |
| subjects | 2-amino-3-cyanopyridines Heterogeneous catalyst Nanocomposite SnO2/SiO2 Sol-gel |
| title | SnO2/SiO2 nanocomposite catalyzed one-pot, four-component synthesis of 2-amino-3-cyanopyridines : research article |
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