Heterocyclic disperse dye compounds, their production and their use for dyeing or printing hydrophobic fibers

摘要

A heterocyclic compound of the formula, CHEM wherein A and B are each hydrogen, alkyl or alkoxy, Y is hydrogen, alkyl, alkoxy or -O-R2-X-R1 or Y and B are taken together with each other to form methylenedioxy, R1 is alkyl, phenyl or alkenyl, R2 is unsubstituted or substituted alkylene, and X is -O-, -S-, -SO-, -SO2- or CHEM in which R3 is hydrogen or alkyl, with the proviso that R1 is C3 or C4 alkyl or alkenyl, or C1 - C4 alkyl when R2 is unsubstituted ethylene or propylene, respectively, X is -O- or -S-, and Y and B don't form methylenedioxy, which is useful for dyeing or printing hydrophobic fiber materials with superior dyeability to give a dyed or printed product of a red color excellent in fastness properties, particularly those such as washing fastness.