Abstract
3-(1,4-Dioxo-3,4,4a, 5,10,10a-hexahydro-1H-5,10-benzenobenzo[g]phthalazin-2-yl)-3-oxopropionitrile and 3-(1,4-dioxo-3,4,4a,5,10,10a-hexahydro-1H-5,10-benzenobenzo[g]phthalazin-2-yl)-3-oxo-2-(5-oxo-3-phenylthia zolidin-2-ylidene) propionitrile were coupled with various diazotized aryl amines in pyridine to give the corresponding aryl hydrazonopropionitriles. Some of the dyes produced were applied to polyester as disperse dyes, and their antibacterial, color, and fastness properties were evaluated.