| 摘要 |
Diaminopyridine-based azo dyes for cellulose-containing fibers, represented by the following formula: <IMAGE> <IMAGE> <IMAGE> <IMAGE> <IMAGE> <IMAGE> +TR <IMAGE> and the other is hydrogen, phenyl, benzyl, allyl, or alkyl which are unsubstituted or substituted by hydroxyl or lower alkoxy (wherein A is methylene, ethylene, propylene, or 1,3-butylene; n is 0 or 1; Y1 and Y2, which are the same or different, are hydrogen, alkyl, alkenyl, cyclohexyl, aryl, or aralkyl which are unsubstituted or substituted by cyano, hydroxy, lower alkoxy, or dialkylamino, or Y1 and Y2 together form a 5- or 6-membered heterocyclic ring (NY1Y2) containing one nitrogen, the total number of carbon atoms of Y1 and Y2 being 18 or less; R1 is nitro, cyano, methylsulfonyl, phenylsulfonyl, mono-lower alkylaminosulfonyl, di-lower alkylaminosulfonyl, acetyl, or benzoyl; R2 and R3, which are the same or different, are hydrogen, trifluoromethyl, halogen, or cyano; R4 is hydrogen, lower alkyl, mono- or di-lower alkylaminosulfonyl, mono/or di-lower alkylcarbamoyl, or acetylamino; R5 and R6, which are the same or different, are hydrogen, halogen, or lower alkyl; R7 is lower alkyl; R8 is trifluoromethyl, or halogen; and R9 is hydrogen, or halogen). The dyes are useful for dyeing cellulose-containing fibers, particularly cellulose fibers and mixed fibers of polyester fibers and cellulose fibers in from orange to blue.
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