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Synthetic Communications
An International Journal for Rapid Communication of Synthetic Organic Chemistry
Volume 31, 2001 - Issue 2
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Original Articles

CERIUM(IV) AMMONIUM NITRATE MEDIATED NITRATION OF COUMARINS

N. Ganguly Department of Chemistry, University of Kalyani, Kalyani, W.B., 741 235, India
,
A. K. Sukai Department of Chemistry, University of Kalyani, Kalyani, W.B., 741 235, India
&
S. De Department of Chemistry, University of Kalyani, Kalyani, W.B., 741 235, India
Pages 301-309 | Received 09 Nov 1999, Published online: 16 Aug 2006
 
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Abstract

A new convenient method of nitration of coumarins using cerium(IV) ammonium nitrate (CAN) has been developed. Higher regioselectivity is observed with CAN and hydrogen peroxide in aqueous medium in comparison with CAN in acetic acid for nitration of 7-hydroxycoumarin, 7-hydroxy-4-methyl coumarin and their derivatives.

ACKNOWLEDGMENTS

AKS is thankful to the University of Kalyani for a research fellowship.

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