Microwave-assisted synthesis of disazothiazolone dyes as antibacterial agents and their application in polyester printing

Abstract

Purpose This study aims to represent a successful simple method for the synthesis of some novel dyes based on thiazole derivatives and their applications in textile printing. Design/methodology/approach 2-(benzo[d]thiazol-2-ylmethyl)thiazol-4(5H)-one compound is prepared by convention heating and microwave technique then used as a coupling agent, which reacts with different diazonium Salt to form diazo dyes. Findings The synthesized diazo dyes are confirmed via spectral data (IR,1H-NMR, 13C-NMR and Mass spectra). The dyes are used to print polyester fabric. The obtained results clarified that the prints have good color strength, brilliant color and highly durable antibacterial activity. Originality/value The authors designed efficient synthesis for some novel thiazolone dyes. The novel procedure features short-reaction time, very good yields and a simple workup. The authors studied the antibacterial activity and their application in printing polyester fabrics.

Facile Synthesis of Novel Disperse Dyes for Dyeing Polyester Fabrics: Demonstrating Their Potential Biological Activities

“…It is well known that dye 22 was created by combining different types of diazonium chloride 21 with diketones 23 to create substituted arylazodiketones 24 , which may then be condensed with cyanoacetamide derivatives 25 using either a traditional heating method or a microwave heating method [ 67 , 68 , 69 , 70 , 71 ]. ( Scheme 3 ).…”

Crystal structure of 4-(benzo[d]thiazol-2-yl)-1,2-dimethyl-1H-pyrazol-3(2H)-one

“…In the course of our studies, intended to develop syntheses of benzothiazole-based heterocycles for use as pharmaceuticals and pigments (Ahmed et al, 2022(Ahmed et al, , 2023, a variety of 2pyrimidyl-, 2-pyridyl-and 2-thienyl-benzothiazole compounds with encouraging cytotoxic action have recently been synthesized and their biological activity reported (Azzam et al, 2017(Azzam et al, , 2019(Azzam et al, , 2022.…”

Crystal structure of 2,4-diamino-5-(4-hydroxy-3-methoxyphenyl)-8,8-dimethyl-6-oxo-6,7,8,9-tetrahydro-5H-chromeno[2,3-b]pyridine-3-carbonitrile–dimethylformamide–water (1/1/1)

“…Activated nitriles and �,�-unsaturated nitrile moieties are involved in a wide variety of natural plant products, drugs, colourants and agrochemicals (Fleming & Wang, 2003;Ahmed et al, 2022); they also represent versatile starting materials for the synthesis of a wide variety of therapeutically important heterocycles (Zhang et al, 2019;Metwally et al, 2023). The generally accepted importance of these functions (Wang et al, 2016;Hebishy et al, 2023) is reflected in the investment of much effort to synthesize them (Zhang et al, 2023;Elgemeie et al, 1998a,b).…”