Research on Chemical Intermediates, ( ISI ), Volume (42), No (2), Year (2018-1) , Pages (1085-1103)

Title : ( Calcined oyster shell nanoparticles (COS NPs): a new, efficient and reusable catalyst for one-pot rapid preparation of 1,8-dioxo-octahydroxanthenes under solvent-free conditions )

Authors: narges mohammadian , Batool Akhlaghinia ,

Citation: BibTeX | EndNote

Abstract

Calcined oyster shell nanoparticles (COS NPs) as a novel heterogeneous nanocatalyst were prepared and fully characterized by X-ray fluorescence analysis, Fourier transform infrared spectroscopy, X-ray powder diffraction, scanning electron microscopy equipped with an energy dispersive spectrometry (SEM-EDS) and transmission electron microscopy. The composition of this catalyst was determined, and it was clearly found that the particle size of COS NPs was about 100–120 nm. The nano-structured solid catalyst as an efficient and eco-friendly catalyst was used for the synthesis of 1,8-dioxo-octahydroxanthenes via the one-pot condensation reaction of 5,5-dimethylcyclohexane-1,3-dione (dimedone) with various aldehydes under solvent-free conditions. This new methodology is cost-effective and offers several advantages such as high yield, excellent purity, short reaction time, high atom economy, simple operation and a convenient workup procedure without the use of any injurious solvents. Moreover, the catalyst can be readily reusable, and considerable catalytic activity could be achieved after the six runs.

Keywords

, 1, 8-Dioxo-octahydroxanthenes  Calcined oyster shell nanoparticles (COS NPs)  Solvent-free synthesis  Heterogeneous nanocatalyst  Aldehyde  5, 5-Dimethylcyclohexane-1, 3-dione (dimedone)
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@article{paperid:1064585,
author = {Mohammadian, Narges and Akhlaghinia, Batool},
title = {Calcined oyster shell nanoparticles (COS NPs): a new, efficient and reusable catalyst for one-pot rapid preparation of 1,8-dioxo-octahydroxanthenes under solvent-free conditions},
journal = {Research on Chemical Intermediates},
year = {2018},
volume = {42},
number = {2},
month = {January},
issn = {0922-6168},
pages = {1085--1103},
numpages = {18},
keywords = {1;8-Dioxo-octahydroxanthenes  Calcined oyster shell nanoparticles (COS NPs)  Solvent-free synthesis  Heterogeneous nanocatalyst  Aldehyde  5;5-Dimethylcyclohexane-1;3-dione (dimedone)},
}

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%0 Journal Article
%T Calcined oyster shell nanoparticles (COS NPs): a new, efficient and reusable catalyst for one-pot rapid preparation of 1,8-dioxo-octahydroxanthenes under solvent-free conditions
%A Mohammadian, Narges
%A Akhlaghinia, Batool
%J Research on Chemical Intermediates
%@ 0922-6168
%D 2018

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