NDLI: Polymer supported sulphanilic acid – A novel green heterogeneous catalyst for synthesis of benzimidazole derivatives

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Polymer supported sulphanilic acid – A novel green heterogeneous catalyst for synthesis of benzimidazole derivatives

Content Provider	Directory of Open Access Journals (DOAJ)
Author	Umesh P. Tarpada Bhautik B. Thummar Dipak K. Raval
Abstract	Polymer supported sulphanilic acid was synthesized and used as green, reusable and heterogeneous catalyst and duly characterized using chemical methods like determination of free hydroxyl content, epoxy equivalent weight and free sulphonic acid content as well as infrared spectroscopy and thermogravimetric analysis. The prepared catalyst was applied for one-pot synthesis of 2-substituted benzimidazoles from o-phenylenediamine and various aromatic aldehydes in absolute ethanol under thermal condition. Catalyst was separated from the product by simple filtration and could be reused for at least five times with almost retention in its efficiency. Due to three dimensional network structures, it shows high thermal stability and can be reused without any further purification.
Related Links	http://www.sciencedirect.com/science/article/pii/S1319610312001238
ISSN	13196103
DOI	10.1016/j.jscs.2012.07.014
Journal	Journal of Saudi Chemical Society
Issue Number	5
Volume Number	20
Language	English
Publisher	Elsevier
Publisher Date	2016-01-01
Publisher Place	Saudi Arabia
Access Restriction	Open
Subject Keyword	Chemistry Heterogeneous Catalyst Epoxy Modification Polymer Supported Sulphanilic Acid O-phenylenediamine Araylaldehydes Benzimidazole
Content Type	Text
Resource Type	Article
Subject	Chemistry

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