Home | My Profile | Contact Us
Research Trends Products  |   order gateway  |   author gateway  |   editor gateway  
Register | Forgot Password

Author Resources
 Author Gateway
 Article submission guidelines

Editor Resources
 Editor/Referee Gateway

 Regional Subscription Agents/Distributors
Current Topics in Catalysis   Volumes    Volume 13 
Microwave-assisted synthesis of dihydropyrimidinones over honeycomb monoliths coated with zirconia-based solid acid catalysts via Biginelli reaction
Reena Saritha Serrao, S. Z. Mohamed Shamshuddin, Joyce Queeny D’Souza
Pages: 17 - 27
Number of pages: 11
Current Topics in Catalysis
Volume 13 

Copyright © 2017 Research Trends. All rights reserved

In this article, catalytic microwave synthesis of dihydropyrimidinones over zirconia-based solid acids coated on honeycomb monoliths is presented. Solid acids such as ZrO2, Mo(VI)/ZrO2, W(VI)/ZrO2 and Pt-SO42-/ZrO2 were coated on honeycomb monoliths and characterized for their physico-chemical properties such as surface acidity by NH3-Temperature programmed desorption (TPD), crystalinity by Powder X-ray diffraction (PXRD), functionality, by Fourier transform infrared spectroscopy (FTIR) and morphology by Scanning electron microscopy (SEM). The elemental composition was measured by using Inductively coupled plasma optical emission spectrometry (ICP-OES). These catalytic materials were subjected to catalytic activity by means of Biginelli reaction using benzaldehyde, ethylacetoacetate and urea to synthesize dihydropyrimidinones under microwave heating condition. The reaction conditions such as nature of catalytic material, temperature and time were optimized to obtain the highest possible yield of the desired product. A series of dihydropyrimidinone derivatives were synthesized under optimized reaction conditions by taking different substituted benzaldehydes. Reactivation and reusability of the honeycomb catalytic material was also studied.
Buy this Article


Buy this article
Buy this volume
Subscribe to this title
Shopping Cart

Quick Links
Search Products
Browse in Alphabetical Order : Journals
Browse by Subject Classification : Journals

Ordering Information Ordering Information
Downloadable forms Downloadable Forms