DESIGN AND NOVEL SYNTHESIS OF SCHIFF BASE DERIVATIVE FOR ANTIMICROBIAL ACTIVITY

Schiff base derivatives have emerged as significant compounds in medicinal chemistry due to their
diverse pharmacological properties, particularly their antimicrobial potential. In this study, a novel
series of Schiff base derivatives was rationally designed and synthesized through condensation
reactions between various substituted aromatic aldehydes and primary amines. The synthesis was
carried out under mild conditions, yielding stable imine-linked compounds with good efficiency.
Structural characterization of the synthesized molecules was accomplished using spectroscopic
techniques such as FTIR, ¹H NMR, and mass spectrometry, confirming the formation of the
azomethine (–C=N–) functional group. The antimicrobial activity of these compounds was evaluated
against a panel of Gram-positive and Gram-negative bacteria, along with selected fungal strains, using
standard in vitro assays. Results indicated that several derivatives exhibited significant antimicrobial
activity, in some cases comparable to standard drugs. Structure–activity relationship analysis
suggested that the presence of electron-donating and electron-withdrawing substituents on the
aromatic ring played a crucial role in enhancing biological efficacy. Overall, this study demonstrates
that Schiff base derivatives represent promising scaffolds for the development of new and effective
antimicrobial agents.