fulltext.study @t Gmail

Magnetic hydroxyapatite-encapsulated γ-Fe2O3 nanoparticles functionalized with basic ionic liquids for aqueous Knoevenagel condensation

Paper ID Volume ID Publish Year Pages File Format Full-Text
42766 45940 2009 7 PDF Available
Title
Magnetic hydroxyapatite-encapsulated γ-Fe2O3 nanoparticles functionalized with basic ionic liquids for aqueous Knoevenagel condensation
Abstract

Hydroxyapatite-encapsulated γ-Fe2O3 nanoparticles functionalized with diethyl aliphatic amine basic ionic liquids were synthesized and used as efficient magnetic catalysts for aqueous Knoevenagel condensation reactions. Quantitative conversion of the reactants was achieved under mild conditions; recycle of the catalyst, through convenient magnetic decantation, shows non-significant loss in activity. In comparison with the controlled experiments catalyzed by homogeneous basic ionic liquids and the basic ionic liquid-modified polystyrene resin, the excellent performance of the magnetic catalyst was attributed to the cooperativity between the base sites generated by framework HAP and the supported basic ionic liquids.

Graphical abstractThe aqueous Knoevenagel condensation reaction was investigated over hydroxyapatite-encapsulated γ-Fe2O3 nanoparticles that had been modified by diethyl aliphatic amine basic ionic liquids. Recycle of the catalyst, through convenient magnetic decantation, shows non-significant loss in activity. The excellent performance of the magnetic catalyst was attributed to the cooperativity between the base sites generated by the framework HAP and the supported basic ionic liquids.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Magnetic separation; Basic ionic liquids; Knoevenagel condensation; Cooperativity
First Page Preview
Magnetic hydroxyapatite-encapsulated γ-Fe2O3 nanoparticles functionalized with basic ionic liquids for aqueous Knoevenagel condensation
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 366, Issue 1, 15 September 2009, Pages 141–147
Authors
, ,
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
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us