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The Preparation of 2-(1-Phenyl-5-Phenyl or 5-Substituted Phenyl-1 H -Pyrazol-3-Yl)Phenols from Trilithiated 2′-Hydroxyacetophenone Phenylhydrazone and Aromatic Esters

✍ Scribed by Rampey, Mary E.; Hurst, Douglas R.; Sood, Aseem; Studer-Martinez, Shannon L.; Beam, Charles F.


Book ID
118169095
Publisher
Taylor and Francis Group
Year
1999
Tongue
English
Weight
450 KB
Volume
29
Category
Article
ISSN
0039-7911

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Preparation of 2-(1-phenyl-1H-pyrazol-5-
✍ Michelle A. Meierhoefer; S. Patrick Dunn; Laela M. Hajiaghamohseni; Matthew J. W 📂 Article 📅 2005 🏛 Journal of Heterocyclic Chemistry 🌐 English ⚖ 92 KB

Select C(α),N-phenylhydrazones were dilithiated in excess lithium diisopropylamide followed by condensation with methyl 2-(aminosulfonyl)benzoate and acid cyclization to afford new pyrazol-benzenesulfonamides, 2-(1-phenyl-1H-pyrazol-5-yl)benzenesulfonamides.