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- Title
Preparation of choline chloride-urea deep eutectic solvent-modified magnetic nanoparticles for synthesis of various 2-amino-4 H-pyran derivatives in water solution.
- Authors
Tavakol, Hossein; Keshavarzipour, Fariba
- Abstract
A novel hybrid magnetic nanocatalyst was synthesized by covalent coating of Fe3O4 magnetic nanoparticles with choline chloride-urea deep eutectic solvent using 3-iodopropyltrimethoxysilane as a linker. The structure of this new catalyst was fully characterized via elemental analysis, transmission and scanning electron microscopies, X-ray diffraction and Fourier transform infrared spectroscopy. It was employed in the synthesis of various 2-amino-4 H-pyran derivatives in water solution via an easy and green procedure. The desired products were obtained in high yields via a three-component reaction between aromatic aldehyde, enolizable carbonyl and malononitrile at room temperature. The employed nanocatalyst was easily recovered using a magnetic field and reused four times (in subsequent runs) with less than 8% decrease in its catalytic activity.
- Subjects
MAGNETIC nanoparticles; CHOLINE chloride; SOLVENTS; PYRAN derivatives; PYRAN synthesis; WATER chemistry
- Publication
Applied Organometallic Chemistry, 2017, Vol 31, Issue 11, p2372
- ISSN
0268-2605
- Publication type
Article
- DOI
10.1002/aoc.3811