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    • 10. 发明授权
    • Yellow anionic disazo dyes
    • 黄色阴离子双偶氮染料
    • US08101731B2
    • 2012-01-24
    • US12748504
    • 2010-03-29
    • Michael LennartzAdolf KäserSandra Weiss
    • Michael LennartzAdolf KäserSandra Weiss
    • C09B35/023C09B35/03C09B35/033C09B35/28D06P1/39
    • C07C309/51C09B35/023C09B35/03C09B35/033C09B35/28Y10S8/916Y10S8/919Y10S8/92
    • The present invention relates to novel yellow anionic dyes, a process for their preparation, certain novel intermediates necessary for their preparation and the use of these dyes for dyeing natural or synthetic materials, in particular, paper. The dyes are of formula (14), (15) or (16) in which R1 represents hydrogen, C1-C4alkyl, C1-C4alkoxy or SO3H, R2 represents SO3H or CO2H, R3 represents hydrogen, C1-C4alkyl, halogen, hydroxy, C1-C4alkoxy, carboxy, NH2 or NHC1-C4alkyl, R3a represents hydrogen or NH2 and A1 and A2, independently of the other, is selected from the group consisting of an acetoacetylated amine, a derivative of barbituric acid, a 2,4,6-triaminopyrimidine derivative, a pyridone derivative, an aminopyrazole or a pyrazolone derivative and a benzoic acid derivative, or A1 and A2, each one independently of the other, represent a certain phenol residue.
    • 本发明涉及新型黄色阴离子染料,其制备方法,其制备所需的某些新型中间体以及用于染色天然或合成材料,特别是纸的这些染料的用途。 染料具有式(14),(15)或(16),其中R1表示氢,C1-C4烷基,C1-C4烷氧基或SO3H,R2表示SO3H或CO2H,R3表示氢,C1-C4烷基,卤素,羟基, C 1 -C 4烷氧基,羧基,NH 2或NHCl-C 4烷基,R 3a表示氢或NH 2,且A 1和A 2彼此独立地选自乙酰乙酰胺,巴比妥酸衍生物,2,4,6 三氯氨嘧啶衍生物,吡啶酮衍生物,氨基吡唑或吡唑啉酮衍生物和苯甲酸衍生物,或A1和A2各自独立地表示某一酚残基。