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Abstract

In this present work, we report that phosphotungstic acid provides a simple, efficient and environmentally benign route is a two-component one-pot domino Knoevenagel-type condensation/Michael reaction between 4-coumarin derivative and an aldehyde in water as a solvent in shorter duration with high yields.[InlineMediaObject not available: see fulltext.]

Details

Title
Phosphotungstic Acid: An Efficient Catalyst for the Aqueous Phase Synthesis of Bis-(4-hydroxycoumarin-3-yl)methanes
Author
Singh, Prashant 1 ; Kumar, Pradeep 2 ; Katyal, Anju 3 ; Kalra, Rashmi 4 ; Dass, Sujata K 5 ; Prakash, Satya 6 ; Chandra, Ramesh 7 

1  A. R. S. D. Collage, University of Delhi, Delhi, India; Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi, India 
2  Department of Chemistry, University of Delhi, Delhi, India 
3  Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi, India 
4  A. N. D. Collage, University of Delhi, Delhi, India 
5  V.P.C. Institute, University of Delhi, Delhi, India 
6  Department of Biomedical Engineering, McGill University, Montreal, QC, Canada 
7  Department of Chemistry, University of Delhi, Delhi, India; Dr. B. R. Ambedkar Center for Biomedical Research, University of Delhi, Delhi, India 
Pages
303-308
Publication year
2010
Publication date
Feb 2010
Publisher
Springer Nature B.V.
ISSN
1011372X
e-ISSN
1572879X
Source type
Scholarly Journal
Language of publication
English
DOI
https://doi.org/10.1007/s10562-009-0239-x
ProQuest document ID
2258949813
Copyright
Catalysis Letters is a copyright of Springer, (2009). All Rights Reserved.