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Comptes Rendus Chimie
Volume 22, n° 8
pages 549-556 (août 2019)
Doi : 10.1016/j.crci.2019.06.005
Received : 4 Mars 2019 ;  accepted : 26 June 2019
Preliminary communications / Communications

Iron-based nanomaterials used as magnetic mesoporous nanocomposites to catalyze the preparation of N -sulfonylimines
 

Akram Ashouri a, , Saadi Samadi a, Behzad Nasiri a, Zohre Bahrami b
a Laboratory of Asymmetric Synthesis, Department of Chemistry, Faculty of Science, University of Kurdistan, 66177-15175, Sanandaj, Iran 
b Faculty of Nanotechnology, Semnan University, Semnan, 35131-19111, Iran 

Corresponding author.
Abstract

A new magnetic nanocatalyzed synthetic method for the synthesis of aldimines was evidenced. The reaction was carried out in a Schlenk tube under reflux conditions using various solvents and different nanomaterials as catalysts. In these reactions, an excellent yield of aromatic aldimines was obtained in the presence of silica-coated magnetic nanomaterials. The prepared catalyst was also characterized by Fourier transform infrared spectroscopy, scanning electron microscopy, nitrogen adsorption and desorption studies, energy dispersive X-ray spectroscopy, and small-angle X-ray scattering spectroscopy. It was shown that the magnetic nanocatalysts can be easily separated from the reaction mixture using an external magnet and reused.

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Keywords : N -Sulfonylimines, Magnetic mesoporous nanomaterials, Aldimine, Fe3 O4 @MCM-41, Recyclability




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