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Tungstophosphoric Acid-Catalyzed Synthesis of Pyrazolones in Water
Corresponding Author(s) : Zhen-Li Min
mchust@126.com
Asian Journal of Chemistry,
Vol. 25 No. 13 (2013): Vol 25 Issue 13
Abstract
A convenient and efficient method for the synthesis of pyrazolones via condensation of hydrazine derivatives with b-keto esters in water catalyzed by tungstophosphoric acid is described. It eliminates the need to dry solvents and substrates before use and the products are easily isolated with high yields.
Keywords
Pyrazolones
Edaravone
Tungstophosphoric acid
Min, Z.-L., & Hu, X.-M. (2013). Tungstophosphoric Acid-Catalyzed Synthesis of Pyrazolones in Water. Asian Journal of Chemistry, 25(13), 7290–7292. https://doi.org/10.14233/ajchem.2013.14550
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