PTA (H3PO4·12WO3·xH2O): An eco-friendly catalyst for the synthesis of new Schiff-bases containing benzimidazole moiety

In this study H3PO4·12WO3·xH2O is found to catalyze the preparation of Schiff bases from the reaction of 3-(1H-Benzimidazol-2-yl)naphthalene-2-amine with different aldehydes efficiently in ethanol. The advantages of this environmental friendly and mild method are such as simplicity of the reaction p...

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Bibliographic Details
Published in:Arabian journal of chemistry 2016-09, Vol.9 (S1), p.S663-S667
Main Authors: Vernekar, Varsha U., Hosamani, Kallappa M., Shaikh, Irfan N., Achar, Kavitha C.S.
Format: Article
Language:English
Subjects:
3-Amino-2-naphthoic acid
Aldehydes
Benzimidazole derivatives
H3PO4·12WO3·xH2O
Schiff’s base derivatives
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Summary:In this study H3PO4·12WO3·xH2O is found to catalyze the preparation of Schiff bases from the reaction of 3-(1H-Benzimidazol-2-yl)naphthalene-2-amine with different aldehydes efficiently in ethanol. The advantages of this environmental friendly and mild method are such as simplicity of the reaction procedure, the elimination of solvents, simple work-up, high product yields and short reaction times. The products were characterized by FT-IR 1H NMR, 13C NMR, mass spectrometry and elemental analysis.
ISSN:1878-5352
1878-5379
DOI:10.1016/j.arabjc.2011.07.030