| 摘要 |
PURPOSE:To provide a disazo dye for polyester fibers, whichdyes polyester fibers green with excellent fastness to light in particular and is water-insoluble, having a specified structural formula. CONSTITUTION:The titled disazo dye for polyester fibers is obtd. from a compd. of formula I (wherein R' is H, F, Cl, Br, nitro, cyano,lower alkyl sulfonyl, lower alkoxycarbonyl, formyl, thiocyanato, trifluoromethyl; X is H, methyl, ethyl, phenyl; Y is cyano, lower alkoxy carbonyl, carbamoyl which may be substituted with lower alkyl; R<2> is H, Cl, Br, methyl, methoxy, hydroxymethyl, alpha- hydroxyethyl, formyl, a group of formula II or III, acylamino; R<3>, R<4> are each alkyl, substd. alkyl, cyclohexyl, aryl, alkenyl).
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