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Solvent-Free Synthesis of Some1-Acetyl Pyrazoles
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 Title & Authors
Solvent-Free Synthesis of Some1-Acetyl Pyrazoles
Thirunarayanan, Ganesamoorthy; Sekar, Krishnamoorthy Guna;
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 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-acetyl pyrazoline derivatives were characterized by their physical constants and spectral data.
 Keywords
Solvent-free cyclization cum acetylation;N-acetyl pyrazoles;IR;NMR spectra;
 Language
English
 Cited by
1.
SiO2-H2SO4 catalysed, microwave-assisted cyclization cum acetylation of 2-propenones under solvent-free condition: Synthesis and spectral correlations of some 1-acetyl pyrazolines, Journal of Taibah University for Science, 2014, 8, 2, 124  crossref(new windwow)
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