Solvent-Free Synthesis of Some1-Acetyl Pyrazoles

G Thirunarayanan, KG Sekar

文献索引：Thirunarayanan, Ganesamoorthy; Sekar, Krishnamoorthy Guna Journal of the Korean Chemical Society, 2013 , vol. 57, # 5 p. 599 - 605

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被引用次数: 7

摘要

Abstract Some N-acetyl pyrazoles including 1-(3-(3, 4-dichlorophenyl)-5-(substituted phenyl)- 4, 5-dihydro--pyrazole-1-yl) ethanones have been synthesised by solvent free cyclization cum acetylation of chalcones like substituted styryl 3, 4-dichlorophenyl ketones using hydrazine hydrate and acetic anhydride in presence of catalytic amount of fly-ash: catalyst. The yield of these N-acetyl pyrazole derivatives are more than 75%. The synthesised N- ...