Abstract
Synthetic Strategy to Amido Alkyl Naphthols from Pyrazole Aldehydes using Silica Supported NaHSO4.SiO2 as an efficient Heterogeneous Catalyst
Sreedharan Helen Perci
, Selvaraj Jayanthi, Periyasamy Monisha, Kittappa Gunasundari and Manickam Pramesh*
DOI : http://dx.doi.org/10.13005/ojc/380426
Abstract:
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.
Keywords:Amido alkyl naphthol; β-naphthol; Pyrazole aldehydes
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