الفهرس | Only 14 pages are availabe for public view |
Abstract Five derivatives of azopyrazole disperse dyes were synthesized by coupling the parent of pyrazolone carbodithioate with diazotized primary aromatic amines. They were synthesized by alternative route ”condensation reaction of methyl hydrazine carbodithioate with ethyl 2-aryldiazenyl-3-hydroxybut-2-enoates. The UV-visible absorption spectra of 5-pyrazolone and its derivatives were measured in dichloromethane and dimethylformamide as non-polar and polar aprotic solvents, with studying the effect of substituent groups on absorption and emission. Antibacterial activity (in vitro,) for these compounds, was studied, besides, antifungal activity, with studying the effect of the chemical structure. In vitro anti-proliferative activity of those compounds was tested to be screened for their anticancer activity, with studying the effect of the chemical structure. For confirming the biological activities of the synthetic compounds with the theoretical data; geometrical optimization of the molecular structures for the investigated compounds was carried out. All the synthesized dyes were applied as disperse dyes for dyeing polyester fabrics, the dyed samples gave excellent uniformity of coloration and fastness properties, and exhibited good potential for antibacterial functionality. Supercritical CO2 dyeing technology was used to test the solubility of three newly synthesized azo-disperse dyes, with the comparison between the solubility of them and the known original dyes in Sc-CO2. |