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Yelwande, Ajeet A.,Navgire, Madhukar E.,Tayde, Deepak T.,Arbad, Balasaheb R.,Lande, Machhindra K. Korean Chemical Society 2012 Bulletin of the Korean Chemical Society Vol.33 No.6
$SnO_2/SiO_2$ nanocomposite has been synthesized by using sol-gel method. Prepared catalytic materials has been well 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 ($NH_3$-TPD). $SnO_2/SiO_2$ nanocomposite catalyzed synthesis of 2-arylbenzothiazoles by the cyclocondensation of 2-aminothiophenol and aromatic aldehydes under reflux condition in 1:1 EtOH:$H_2O$. After completion of the reaction, catalyst can be recovered efficiently and reused with consistent activity.
Machhindra Lande,Madhukar Navgire,Sandip Rathod,Santosh Katkar,Ajeet Yelwande,Balasaheb Arbad 한국공업화학회 2012 Journal of Industrial and Engineering Chemistry Vol.18 No.1
A series of carbon-doped MoO3–TiO2 (CMT) material were prepared by sol–gel method. The catalyst prepared has been characterized by means of X-ray diffraction (XRD), scanning electron microscopy (SEM), energy dispersive spectroscopy (EDS), and Fourier transform infrared spectroscopy (FT-IR). The natural wood plant Acacia arabica used as a source for carbon substrate. The effect of variation of wt.% of carbon doping was successfully evaluated for the preparation of quinoxalines by the condensation of benzil and 1,2-diamine under ultra-sonication in EtOH:water (3:1). The merits of the present investigation are extremely short reaction times, mild reaction conditions, excellent yield, simple workup and environmentally benign process.
SnO2/SiO2 Nanocomposite Catalyzed One-Pot Synthesis of 2-Arylbenzothiazole Derivatives
Ajeet A. Yelwande,Madhukar E. Navgire,Deepak T. Tayde,Balasaheb R. Arbad,Machhindra K. Lande 대한화학회 2012 Bulletin of the Korean Chemical Society Vol.33 No.6
SnO2/SiO2 nanocomposite has been synthesized by using sol-gel method. Prepared catalytic materials has been well 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). SnO2/SiO2 nanocomposite catalyzed synthesis of 2-arylbenzothiazoles by the cyclocondensation of 2-aminothiophenol and aromatic aldehydes under reflux condition in 1:1 EtOH:H2O. After completion of the reaction, catalyst can be recovered efficiently and reused with consistent activity.