oa South African Journal of Chemistry - Polyaniline/SiO2 catalyzed one-pot synthesis of Tetrahydrobenzo[b]pyran derivatives : research article
|Article Title||Polyaniline/SiO2 catalyzed one-pot synthesis of Tetrahydrobenzo[b]pyran derivatives : research article|
|© Publisher:||South African Chemical Institute (SACI)|
|Journal||South African Journal of Chemistry|
|Author||Ajeet A. Yelwande, Balasaheb R. Arbad and Machhindra K. Lande|
|Publication Date||Jan 2010|
|Pages||199 - 203|
|Keyword(s)||Chemical oxidative method, Dr. Babasaheb Ambedkar Marathwada University, India, Polyaniline/SiO2 and Tetrahydrobenzo[b]pyran|
Polyaniline/SiO2 is an efficient catalyst for the synthesis of tetrahydrobenzo[b]pyran derivatives from a one-pot, three component, condensation of aldehydes, malononitrile and dimedone at room temperature. This protocol has several advantages such as high yield, a simple work up procedure, low toxicity and easy recovery and reusability of the catalytic material. The catalyst has been readily prepared and characterized by means of thermal analysis (TG-DTA), X-ray diffraction (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FT-IR).
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