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Magnetic carbon nanotube‐supported imidazolium cation‐based ionic liquid as a highly stable nanocatalyst for the synthesis of 2‐aminothiazoles
Author(s) -
Zarnegar Zohre,
Safari Javad
Publication year - 2016
Publication title -
applied organometallic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.53
H-Index - 71
eISSN - 1099-0739
pISSN - 0268-2605
DOI - 10.1002/aoc.3540
Subject(s) - ionic liquid , thermogravimetric analysis , chemistry , catalysis , carbon nanotube , nanocomposite , thiourea , nanomaterials , raman spectroscopy , ionic bonding , chemical engineering , inorganic chemistry , nanotechnology , organic chemistry , materials science , ion , physics , engineering , optics
Magnetic carbon nanotube‐supported imidazolium ionic liquid (CNT‐Fe 3 O 4 ‐IL) was synthesized and investigated using various characterization techniques, including Fourier transform infrared and Raman spectroscopies, X‐ray diffraction, vibrating sample magnetometry, scanning and transmission electron microscopies, and thermogravimetric and differential thermal analyses. In order to synthesize the CNT‐Fe 3 O 4 ‐IL nanocomposites, Fe 3 O 4 ‐decorated multi‐walled CNTs were modified with 1‐methyl‐3‐(3‐trimethoxysilylpropyl)‐1 H ‐imidazol‐3‐ium chloride. This catalytic system was found to be a highly stable, active, reusable and solid‐phase catalyst for the synthesis of 2‐aminothiazoles via the one‐pot reaction of ketone, thiourea and N ‐bromosuccinimide under mild conditions. Immobilized magnetic ionic liquid catalysis combines the advantages of ionic liquid media with magnetic solid support nanomaterials which enables the application of nanotechnology and green chemistry in chemical processes. Copyright © 2016 John Wiley & Sons, Ltd.