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Research Article Open access CC BY 4.0

Synthesis, Spectroscopic Studies and Antimicrobial Activity of Novel Aromatic Hydrazones Derived from 1-Hydralazinophthalazine

Joseph N. Yong, Peter F. Asobo, Kennedy D. Nyongbela, Romanus N. Njong, Oswald N. Nfor

Chemical Science International Journal · pp. 1–10 · Published 3 May 2016

10.9734/ACSJ/2016/26059

Abstract

Aims: To synthesize novel Schiff bases, determine their structures by spectroscopic methods including IR, 1H and 13C NMR, single crystal X-ray diffraction and elemental analysis and test them against some selected bacterial strains. Methodology: 1-Hydralazinophthalazine was condensed with 5-methylfurfural and 2-acetylthiophene to form hydrazones. The Schiff bases obtained were screened for antimicrobial activity using the agar-diffusion method. Results: The spectroscopic data indicate the presence an exocyclic C=N and an N-H bond on the hydralazine moiety of the Schiff base. These compounds show moderate activity against the selected bacterial strains Conclusion: Two new Schiff bases were derived from hydralazine hydrochloride and their structures were determined by elemental analysis, single X-ray diffraction method, IR and NMR. These compounds showed moderate antimicrobial activity against some selected bacterial strains compared to amoxicillin and norfloxacin as standards.

Schiff bases hydrazones single crystal antibacterial

Cited by 5

Pyridazines and Their Benzo Derivatives

Gary Chinigo, Yiqing Feng, Susan Hoy · Comprehensive Heterocyclic Chemistry IV · 2022

Corrosion Inhibitory Studies of Novel Schiff Bases Derived from Hydralazine Hydrochloride on Mild Steel in Acidic Media

Romanus N. Njong, Bridget N. Ndosiri, Emmanuel N. Nfor · Open Journal of Physical Chemistry · 2018

Corrosion Inhibition Character of Some New Schiff Base Ligands: Synthesis, Characterisation and Antimicrobial Studies

V. Balamurugan, L. Muruganandam, S. Shankar · Journal of Bio- and Tribo-Corrosion · 2025

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