Synthesis, characterization and using Fe3O4@SiO2@FeCl3 as a new nanocatalyst for aza-Michael reaction between amines and ethyl crotonate

Abstract

In this article, recyclable Fe₃O₄@SiO₂@FeCl₃ was synthesized and entirely characterized by various techniques including XRD, FT-IR, SEM, EDX and VSM analysis. The catalytic ability of produced Fe₃O₄@SiO₂@FeCl₃ was studied in the aza-Michael reaction of diethyl amine and ethyl crotonate which lead to high yield of product. Also, this procedure was used to synthesize other derivatives resulted from different amines. Synthesized Fe₃O₄@SiO₂@FeCl₃ nanocatalyst has some great advantages such as easy preparation method, simple recovery and high efficiency.