A facile synthesis of arylazonicotinates for dyeing polyester fabrics under microwave irradiation and their biological activity profiles

Abstract

A as textile dyes and the fastness properties of the dyed samples were measured. Most of the dyed fabrics tested displayed very good washing and perspiration fastness and series of 2-hydroxy-and 2-amino-6-substituted-5- arylazonicotinate monoazo compounds 7a-e and 9a-c were prepared via condensation of 3-oxo-3-substituted-2-arylhydrazonals 2a-e with active methylene nitriles 3a-d using microwave irradiation as an energy source. These substances were then tested moderate light fastness. Finally, the biological activity of the synthesized compounds against Gram positive bacteria, Gram negative bacteria and yeast were evaluated. © 2012 by the authors; licensee MDPI, Basel, Switzerland.