oa South African Journal of Chemistry - SnO2/SiO2 nanocomposite catalyzed one-pot, four-component synthesis of 2-amino-3-cyanopyridines : research article
|Article Title||SnO2/SiO2 nanocomposite catalyzed one-pot, four-component synthesis of 2-amino-3-cyanopyridines : research article|
|© Publisher:||South African Chemical Institute (SACI)|
|Journal||South African Journal of Chemistry|
|Affiliations||1 Dr. Babasaheb Ambedkar Marathwada University, India, 2 Dr. Babasaheb Ambedkar Marathwada University, India, 3 Dr. Babasaheb Ambedkar Marathwada University, India, 4 Dr. Babasaheb Ambedkar Marathwada University, India and 5 Dr. Babasaheb Ambedkar Marathwada University, India|
|Publication Date||Jan 2012|
|Pages||131 - 137|
|Keyword(s)||2-amino-3-cyanopyridines, Heterogeneous catalyst, Nanocomposite, SnO2/SiO2 and Sol-gel|
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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