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Integration of aqueous biphasic with magnetically recyclable systems: Polyethylene glycol-grafted Fe3O4 nanoparticles catalyzed phenacyl synthesis in water

Paper ID Volume ID Publish Year Pages File Format Full-Text
49808 46768 2016 6 PDF Available
Title
Integration of aqueous biphasic with magnetically recyclable systems: Polyethylene glycol-grafted Fe3O4 nanoparticles catalyzed phenacyl synthesis in water
Abstract

•Synthesis and fully characterization of PEG@SiO2@Fe3O4 nanoparticles•Performance of the catalysts was evaluated in the synthesis of phenacyl derivatives.•Facile work-up procedure, short reaction times, good to high yields of the products•The catalyst is recyclable and stable under the reaction conditions.

The present work trends to define an efficient phenacyl catalytic synthesis method employing a new nano-magnetite-supported organocatalyst. Polyethylene glycol (PEG) was bonded successfully onto silica coated ferrite and the resultant nanoparticles (PEG@SiO2@Fe3O4) characterized by fourier transform infrared spectroscopy (FT-IR), atomic force microscopy (AFM), thermal gravimetric analysis (TGA), vibrating sample magnetometry (VSM), energy dispersive X-ray analysis (EDAX) and X-ray diffraction (XRD) that exhibited a good catalytic activity in the reaction. The nanoparticles could be easily separated from the reaction mixture by an external magnet and reused in seven reaction cycles without significant loss of activity.

Graphical abstractPEG-grated Fe3O4 catalyzed nucleophilic reaction of α-bromoacetophenone derivativesFigure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Magnetically recyclable nanocatalyst; PEG-grafted nanoparticles; Phenacyl derivatives
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Integration of aqueous biphasic with magnetically recyclable systems: Polyethylene glycol-grafted Fe3O4 nanoparticles catalyzed phenacyl synthesis in water
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 78, 10 March 2016, Pages 11–16
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
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Full-text PDF Download
Online Support
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