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Efficient clay supported Ni0 nanoparticles as heterogeneous catalyst for solvent-free synthesis of Hantzsch polyhydroquinoline

Paper ID Volume ID Publish Year Pages File Format Full-Text
50836 46818 2012 4 PDF Available
Title
Efficient clay supported Ni0 nanoparticles as heterogeneous catalyst for solvent-free synthesis of Hantzsch polyhydroquinoline
Abstract

A green and efficient multicomponent one-pot synthesis of Hantzsch polyhydroquinoline was achieved by the condensation of aldehydes, dimedone, ethylacetoacetate and ammonium acetate at room temperature using environmentally benign modified Montmorillonite supported Ni0-nanoparticles as catalyst. The well dispersed Ni0-nanoparticles having a high surface to volume ratio have promising features for the reaction such as easy removal of the catalyst, solvent-free, shorter reaction time, high product yields (about 95%) and easy work up procedure. There is no significant effect of electron withdrawing or donating nature of substituent on aldehydes in the formation of polyhydroquinoline derivatives.

► Modification of Montmorillonite clay by mineral acid activation. ► In-situ generation of Ni0-nanoparticles on modified Montmorillonite clay. ► Hantzsch polyhydroquinoline synthesis by the supported Ni0-nanoparticle catalyst. ► The synthesis involves no solvent, easy work up and exhibits high yields.

Keywords
Hantzsch polyhydroquinoline; Dimedone; Montmorillonite; Ni0-nanoparticles
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Efficient clay supported Ni0 nanoparticles as heterogeneous catalyst for solvent-free synthesis of Hantzsch polyhydroquinoline
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 19, March 2012, Pages 1–4
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
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us