Journal
JOURNAL OF SOLID STATE CHEMISTRY
Volume 184, Issue 8, Pages 2009-2016Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2011.05.035
Keywords
Polymer-inorganic hybrid material; SiO2-Al2O3; Polymeric composite; Basic catalyst
Funding
- Islamic Azad University, Shahreza Branch (IAUSH) Research Council and Center of Excellence in Chemistry
Ask authors/readers for more resources
In this work, Al2O3 was mixed with SiO2 and poly 4-vinylpyridine by the sol-gel method in order to make a composite which is used as a heterogeneous basic catalyst for Knoevenagel condensation reaction. The physical and chemical properties of the composite catalyst were investigated by XRD, TG, BET and SEM techniques. The catalytic performance of each material was determined for the Knoevenagel condensation reaction between carbonyl compound and malononitrile. The reactions were performed in solvent-free conditions and the product was obtained in high yield and purity after a simple work-up. The effects of the amount of catalyst, amount of monomer for the synthesis of composite and recyclability of the heterogeneous composite were investigated. The composite catalyst used for this synthetically useful transformation showed considerable level of reusability besides very good activity. (C) 2011 Elsevier Inc. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available