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International Letters of Chemistry, Physics and Astronomy
Volume 39

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Synthesis and Characterization of 1,3,5-Trisubstituted Pyrazoline Derivatives by Ultrasonic Irradiation Method and Evaluation of its Antibacterial Activity
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Synthesis and Characterization of 1,3,5-Trisubstituted Pyrazoline Derivatives by Ultrasonic Irradiation Method and Evaluation of its Antibacterial Activity

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Abstract:

A series of novel 1,3,5-trisubstituted pyrazoline derivatives (P1-P10) have been synthesized by the reaction of substituted chalcones (C1-C10) with 4-hydroxybenzhydrazide. The starting material, chalcones were prepared by claisen Schmidt condensation of 4-methylacetophenone with substituted aldehydes in the presence of sodium hydroxide in ethanol. 4-hydroxybenzhydrazide was synthesized by condensing methyl 4-hydroxybenzoate with hydrazine hydrate. The cycloaddition of chalcones with 4-hydroxybenzhydrazide gives 1, 3, 5-trisubstituted pyrazoline derivatives. The structures of synthesized derivatives were confirmed by IR, 1HNMR and 13C NMR spectrum. The synthesized compounds were screened for their antibacterial and antifungal activity.

Info:

Periodical:
International Letters of Chemistry, Physics and Astronomy (Volume 39)
Pages:
219-233
DOI:
https://doi.org/10.18052/www.scipress.com/ILCPA.39.219
Citation:
A. Raguraman and N. Santhi, "Synthesis and Characterization of 1,3,5-Trisubstituted Pyrazoline Derivatives by Ultrasonic Irradiation Method and Evaluation of its Antibacterial Activity", International Letters of Chemistry, Physics and Astronomy, Vol. 39, pp. 219-233, 2014
Online since:
Oct 2014
Authors:
A. Raguraman, N. Santhi
Keywords:
2-Pyrazoline, 4-Methylacetophenone, Antibacterial, Antifungal, Chalcone, Ultrasonic Irradiation
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Distribution:
Open Access

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