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    • 4. 发明授权
    • Monoazo compounds derived from 3-nitro-4-amino-benzoates and
5-(2'-hydroxy-3'-naphthoylamino)-benzimidazolones
    • 衍生自3-硝基-4-氨基 - 苯甲酸酯和5-(2'-羟基-3'-萘甲酰氨基) - 苯并咪唑酮的单偶氮化合物
    • US4555568A
    • 1985-11-26
    • US162074
    • 1980-06-23
    • Klaus Hunger
    • Klaus Hunger
    • C09B29/20C09B29/01C09B29/15D06P1/44D06P3/24
    • C09B29/20
    • When diazotizing lower alkyl esters of 3-nitro-4-aminobenzoic acid and coupling them onto 5-(2'-hydroxy-3'-naphthoylamino)-benzimidazolone-(2) which may be substituted in 6'-position by chlorine or bromine, in 1-position by methyl or ethyl and in the benzo-nucleus by chlorine, bromine, methyl, ethyl, methoxy or ethoxy, and such as further illustrated by a representative formula ##STR1## wherein R is alkyl of 1 to 4 carbon atoms, X is hydrogen, chlorine, bromine, methyl, ethyl, methoxy or ethoxy, Y is hydrogen, methyl or ethyl, and Z is hydrogen, chlorine or bromine. Colorants are obtained which are especially useful for pigmenting plastics, spinning masses, printing inks, varnishes and paints. The dyeings obtained therewith are fast to light, weathering, solvents and migration, especially fast to overvarnishing and bleeding.
    • 当重氮化3-硝基-4-氨基苯甲酸的低级烷基酯并将其偶联到5-(2'-羟基-3'-萘甲酰基氨基) - 苯并咪唑酮 - (2)时,其可以在6'位被氯或溴取代 在甲基或乙基的1-位,在苯并 - 核中由氯,溴,甲基,乙基,甲氧基或乙氧基取代,并且如通过其代表性的式I进一步说明的,其中R是1至4个碳的烷基 原子,X是氢,氯,溴,甲基,乙基,甲氧基或乙氧基,Y是氢,甲基或乙基,Z是氢,氯或溴。 得到着色剂,其对于着色塑料,纺丝团,印刷油墨,清漆和油漆特别有用。 由此获得的染色具有耐光,耐候性,溶剂和迁移性,特别是快速渗透和渗色。