New Synthesis of 3-Methoxy-4-substituted Pyrazole Derivatives.
β Scribed by Bertrand Cottineau; Jacques Chenault; Gerald Guillaumet
- Publisher
- John Wiley and Sons
- Year
- 2006
- Weight
- 35 KB
- Volume
- 37
- Category
- Article
- ISSN
- 0931-7597
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## Abstract For Abstract see ChemInform Abstract in Full Text.
## Abstract The reaction of ethyl 4β(benzofuranβ2βyl)β2,4βdioxobutanoate **2** with two moles of hydrazine hydrate afforded 5β(benzofuranβ2βyl)β1__H__βpyrazoleβ3βcarbohydrazide **4a**, while its reaction with equimolar amount of phenylhydrazine gave ester **3b** which then converted to 5β(benzofura
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