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-R<2>-X-R<1> or Y and B are taken together with each other to form methylenedioxy, R<1> is alkyl, phenyl or alkenyl, R<2> is unsubstituted or substituted alkylene, and X is -O-, -S-, -SO-, -SO2- or <CHEM> in which R<3> is hydrogen or alkyl, with the proviso that R<1> is C3 or C4 alkyl or alkenyl, or C1 - C4 alkyl when R<2> 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.