SYNTHESIS AND ANTIBACTERIAL ACTIVITY OF NOVEL PYRAZOLO(3,4-b)QUINOLINE BASED HETEROCYCLIC AZO COMPOUNDS AND THEIR DYEING PERFORMANCE

∗3-Amino-6-methyl-1H-pyrazolo[3,4-b]quinoline was synthesized in good yield. Monoazo compounds were prepared using this intermediate as diazo component with various heterocyclic coupling components. All the azo compounds were characterized by their percentage yield, melting point, elemental analysis, UV-visible spectra, IR-spectra and dyeing performance on nylon and polyester fibres and by their antibacterial activity against gram positive and gram negative bacteria.