Title : ( 2-Aminoethanesulfonic acid immobilized on epichlorohydrin functionalized Fe3O4@WO3 (Fe3O4@WO3-EAE-SO3H (III)): A heterogeneous and reusable nanocatalyst for synthesis of α,α\\\\\\\'-bis (substituted-benzylidene) cycloalkanones in solvent-free conditions )
Authors: hanieh karim zadegan , Batool Akhlaghinia , maryam sadat ghasemzadeh ,
Full TextAbstract
A green, efficient, chemoselective, facile and clean procedure is described and discussed for the synthesis of α, α\\\\\\\'-bis (substitutedbenzylidene) cycloalkanones in solvent-free conditions. The condensation reaction was carried out through the reaction of aromatic aldehydes with cycloalkanones in the presence of Fe3O4@WO3 (Fe3O4@WO3-EAE-SO3H (III)) nanoparticles as the catalyst. The nanostructured catalyst with the spherical shape, particle size in the range of 7-23 nm and superparamagnetic behavior may be referred as an excellent replacement for Brønsted acids. The reaction proceeds rapidly at room temperature, giving high yields of products. No self-condensation product was produced. Easy separation of the catalyst from the reaction mixture by means of an external magnetic field and re-using up to seven times without loss of activity are the salient features of the present method.
Keywords
, α, α\\\\\\\'-Bis (substituted-benzylidene) cycloalkanones, Aldehyde, Cycloalkanone.
@article{paperid:1074785,
author = {Karim Zadegan, Hanieh and Akhlaghinia, Batool and Ghasemzadeh, Maryam Sadat},
title = {2-Aminoethanesulfonic acid immobilized on epichlorohydrin functionalized Fe3O4@WO3 (Fe3O4@WO3-EAE-SO3H (III)): A heterogeneous and reusable nanocatalyst for synthesis of α,α\\\\\\\'-bis (substituted-benzylidene) cycloalkanones in solvent-free conditions},
journal = {Iranian Journal of Catalysis},
year = {2019},
volume = {9},
number = {2},
month = {February},
issn = {2252-0236},
pages = {109--120},
numpages = {11},
keywords = {α;α\\\\\\\'-Bis (substituted-benzylidene) cycloalkanones; Aldehyde; Cycloalkanone.},
}
%0 Journal Article
%T 2-Aminoethanesulfonic acid immobilized on epichlorohydrin functionalized Fe3O4@WO3 (Fe3O4@WO3-EAE-SO3H (III)): A heterogeneous and reusable nanocatalyst for synthesis of α,α\\\\\\\'-bis (substituted-benzylidene) cycloalkanones in solvent-free conditions
%A Karim Zadegan, Hanieh
%A Akhlaghinia, Batool
%A Ghasemzadeh, Maryam Sadat
%J Iranian Journal of Catalysis
%@ 2252-0236
%D 2019
