Abstract

SYNTHESIS OF SOME NOVEL HETEROCYCLIC AZO DYES FOR ACRIDINE DERIVATIVES AND EVALUATION OF THEIR ANTIBACTERIAL ACTIVITIES

Pinka Patel* and Pankaj S. Patel

Abstract

The novel mordent and disperse heterocyclic dyes were prepared by coupling of various diazo solution of aromatic amines with N-[{4-[2- (5-(4-chlorophenyl)-3-(4-methoxyphenyl)-4,5-dihydro-pyrazol-1-yl)- 2-oxoethoxy]phenyl}methylene]substitutedaniline. The resultant mordent and disperse heterocyclic dyes were characterized by elemental analyses, IR and NMR spectral studies. The UV-visible spectral data have also been discussed in terms of structural property relationship. All the disperse azo dyes were applied on polyester textile fibers. The percentage dye bath exhaustion and fixation on the polyester fibers have been found to be very good. Moderate to very good light fastness and washing fastness properties were indicated by the dyied fabrics. Structures of synthesized compounds were confirmed by physical and spectral analysis. The compounds are evaluated for their antimicrobial activities.

Keywords: Schiff bases, heterocyclic dyes, UV absorber, antimicrobial-screening.