New Pyrazoline Derivatives Containing Imine Moiety: Synthesis, Characterization and Antimicrobial Study


  • Mohammed Ibrahim Sultan Department of Chemistry, College of Science, Mustansiriyah University, Baghdad.
  • Ahmed M. Abdula Department of Chemistry, College of Science, Mustansiriyah University, Baghdad.
  • Rana I. Faeq Department of Chemistry, College of Science, Mustansiriyah University, Baghdad.
  • Mahdi F. Radi Department of Chemistry, College of Science, Mustansiriyah University, Baghdad.



Chalcone, Pyrazoline, Schiff base and antimicrobial.


A new series of pyrazoline derivatives (3-10) have been synthesized and characterized on the basis of FT-IR, 1H-NMR, and Mass techniques. 1-(4-Aminophenyl)-3-(pyridin-4-yl)prop-2-en-1-one (1) as a starting material was prepared by the reaction of 4-aminoacetophenone and 4-pyridinecarboxaldehyde in ethanol, using sodium hydroxide as a catalyst. Pyrazoline derivatives 2 was obtained via the cyclization reaction of compound 1 by the action of hydrazine hydrate 80% in ethanol. The target derivatives (3-8) were obtained by the reaction of pyrazoline derivative (2) with the corresponding aldehyde in ethanol. The novel pyrazoline derivatives 9 and 10 were synthesized by the reaction of pyrazoline derivative 2 with the corresponding anhydride (maleic or phthalic anhydride) in presence of anhydrous sodium acetate in glacial acetic acid. The synthesized derivatives were screened against several bacterial strains: Staphylococcus aureus, Staphylococcus espidermididis, Escherichia coli, Klebsiella and Candida albicans. The synthesized compounds showed promising bio-activity compared with amoxicillin.


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How to Cite

M. I. Sultan, A. M. Abdula, R. I. Faeq, and M. F. Radi, “New Pyrazoline Derivatives Containing Imine Moiety: Synthesis, Characterization and Antimicrobial Study”, Al-Mustansiriyah Journal of Science, vol. 32, no. 3, pp. 8–14, Jun. 2021, doi: 10.23851/mjs.v32i3.955.

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