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Rapid One-pot, Four Component Synthesis of Pyranopyrazoles Using Heteropolyacid Under Solvent-free Condition

✍ Scribed by Chavan, Hemant V.; Babar, Santosh B.; Hoval, Rahul U.; Bandgar, Babasaheb P.


Book ID
120209820
Publisher
Korean Chemical Society
Year
2011
Tongue
English
Weight
197 KB
Volume
32
Category
Article
ISSN
0253-2964

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## Abstract magnified image In this article, efficient and simple preparation of Hantzsch pyridine derivatives by reaction of various aldehydes and β‐dicarbonyls in the presence of ammonium chlorate under solvent‐free condition at 80Β°C is reported. The advantages of this system are the one‐step pr