Microwave‐Induced Synthesis of Pyridine Based Schiff Bases and Their Applications as Efficient Antimicrobial Textile Dyeing Agents: Experimental and Theoretical Approach

Abstract

AbstractThree new pyridine‐based Schiff bases P‐2IMBT ((Z)‐2‐(((pyridin‐2‐ylmethyl)imino)methyl)benzene‐1,3,5‐triol), P‐3IMBT (Z)‐2‐(((pyridin‐3‐ylmethyl)imino)methyl)benzene‐1,3,5‐triol, and P‐4IMBT 2‐(((pyridin‐4‐ylmethyl)imino)methyl)benzene‐1,3,5‐triol were investigated to see if they could be employed as antimicrobial textile synthetic dyes. Adding the pyridine nucleus to these compounds improves their textile colour and therapeutic potential. Microwave‐assisted synthesis was used to synthesize these molecules, which is highly efficient, safe, cost‐effective, and ecologically benign. NMR, IR, Mass, PXRD, UV‐Vis, DFT calculations, Fluorescence, and thermogravimetric methods were used to describe all of the compounds. In experiments on wool and silk, these positional isomers, P‐2IMBT, P‐3IMBT, and P‐4IMBT, were found to be washable and offered a rich brown hue with good tonal variation. Cotton had to be pre mordanted, and this is likely a one‐of‐a‐kind cotton mordant dye. Further antimicrobial studies suggest that these compounds could be effective antibacterial agents.