Facile Synthesis, Characterization and Spectral Evaluation of Some New Pyrazolone Derivatives

The target compounds N1-(2, 5-dichloro benzoyl)-3-methyl-4-(substituted phenyl hydrazono)-5-pyrazolone derivatives (2a-2t) have been synthesized by the condensation of different ethyl 2,3-dioxo butyrate-2-(substituted benzeneazo) phenyl hydrazone (1a-1t) with 2,5-dichloro phenyl hydrazine by using g...

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Bibliographic Details
Published in:Oriental journal of chemistry 2010-01, Vol.26 (3), p.1147
Main Authors: Pareek, Alok K, Joseph, P E, Seth, Daya S
Format: Article
Language:English
Subjects:
Acetic acid
Chemical properties
Condensation
Derivatives
Hydrazines
Hydrazones
Infrared radiation
Melting points
Organic chemistry
Pyrazolones
Substitutes
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Summary:The target compounds N1-(2, 5-dichloro benzoyl)-3-methyl-4-(substituted phenyl hydrazono)-5-pyrazolone derivatives (2a-2t) have been synthesized by the condensation of different ethyl 2,3-dioxo butyrate-2-(substituted benzeneazo) phenyl hydrazone (1a-1t) with 2,5-dichloro phenyl hydrazine by using glacial acetic acid as a condensing agent. The structural assignment are based on their melting point, colour, elemental analysis, spectral data (IR) and chemical properties.
ISSN:0970-020X
2231-5039