Title : ( Fe3O4@Boehmite-NH2-CoII NPs: An Environment Friendly Nanocatalyst for Solvent Free Synthesis of Coumarin Derivatives Through Pechmann Condensation Reaction )
Authors: somayeh pakdel asgarabad , Batool Akhlaghinia , arezoo mohammadinezhad ,
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Abstract
We report herein the synthesis of coumarin derivatives via the Pechmann condensation reaction in the presence of magnetic core–shell-like Fe3O4@ Boehmite-NH2-CoII NPs. The aforesaid nanocatalyst which previously reported by our group, was found to be an efficient heterogeneous nanocatalyst in this reaction. Initially, the reaction conditions were optimized with different solvents, catalyst amounts and temperatures. Subsequently, the scope of the reaction was extended and the coumarin derivatives were obtained in reasonable yields. Interestingly, Fe3O4@ Boehmite-NH2-CoII NPs was stable under reaction conditions and can be reused at least six times without a significant decrease in its catalytic activity. More importantly, using cobalt as a non-toxic, inexpensive, widely available and high-activity catalyst is great of interest than the most previously reported protocols.
Keywords
, CoII immobilized on aminated Fe3O4@ Boehmite nanoparticles ( Fe3O4@Boehmite, NH2, CoII NPs) · Pechmann condensation reaction · Nanocatalyst · Heterogeneous nanocatalyst · Phenol · β, Ketoesters
@article{paperid:1075586,
author = {Pakdel Asgarabad, Somayeh and Akhlaghinia, Batool and Mohammadinezhad, Arezoo},
title = {Fe3O4@Boehmite-NH2-CoII NPs: An Environment Friendly Nanocatalyst for Solvent Free Synthesis of Coumarin Derivatives Through Pechmann Condensation Reaction},
journal = {Chemistry Africa},
year = {2019},
volume = {2},
number = {3},
month = {September},
issn = {2522-5758},
pages = {367--376},
numpages = {9},
keywords = {CoII immobilized on aminated Fe3O4@
Boehmite nanoparticles (
Fe3O4@Boehmite-NH2-CoII NPs) · Pechmann
condensation reaction · Nanocatalyst · Heterogeneous nanocatalyst · Phenol · β-Ketoesters},
}
%0 Journal Article
%T Fe3O4@Boehmite-NH2-CoII NPs: An Environment Friendly Nanocatalyst for Solvent Free Synthesis of Coumarin Derivatives Through Pechmann Condensation Reaction
%A Pakdel Asgarabad, Somayeh
%A Akhlaghinia, Batool
%A Mohammadinezhad, Arezoo
%J Chemistry Africa
%@ 2522-5758
%D 2019
