Asian Journal of Chemistry
Tungstophosphoric Acid-Catalyzed Synthesis of Pyrazolones in Water
Z Min, X Hu
Index: Min, Zhen-Li; Hu, Xia-Min Asian Journal of Chemistry, 2013 , vol. 25, # 13 p. 7290 - 7292
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Abstract
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
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