Synthetic Strategy to Amido Alkyl Naphthols from Pyrazole Aldehydes using Silica Supported NaHSO4.SiO2 as an efficient Heterogeneous Catalyst

A facile and eminent method has been reported for the preparation of amido alkyl naphthols. Amido alkyl naphthol derivatives were synthesized by the condensation of pyrazole aldehydes, β-naphthol and acetamide in the presence of a heterogeneous SiO2 supported sodium hydrogen sulphate catalyst using...

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Bibliographic Details
Published in:Oriental journal of chemistry 2022-08, Vol.38 (4), p.1024-1030
Main Authors: Perci, Sreedharan Helen, Jayanthi, Selvaraj, Monisha, Periyasamy, Gunasundari, Kittappa, Pramesh, Manickam
Format: Article
Language:English
Subjects:
Acetic acid
Aldehydes
Catalysts
Chemistry
Chromatography
Condensates
Ethanol
Fourier transforms
Naphthol
NMR
Nuclear magnetic resonance
Pyrazole
Silicon dioxide
Solvents
Synthesis
Zinc oxides
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Summary:A facile and eminent method has been reported for the preparation of amido alkyl naphthols. Amido alkyl naphthol derivatives were synthesized by the condensation of pyrazole aldehydes, β-naphthol and acetamide in the presence of a heterogeneous SiO2 supported sodium hydrogen sulphate catalyst using acetic acid as a solvent. This protocol is advantageous for its shorter reaction hours, simplest workup technique, excellent yields with easy recovery and reusability of the catalyst.1H, and 13C Nuclear Magnetic Resonance, Fourier transform infrared and Mass Spectroscopy were utilized for the characterization of synthesized products.
ISSN:0970-020X
2231-5039
DOI:10.13005/ojc/380426