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    • 92. 发明授权
    • Process for the preparation of 4-amino-1,8-naphthalimides
    • 制备4-氨基-1,8-萘二酰亚胺的方法
    • US4172202A
    • 1979-10-23
    • US867705
    • 1978-01-09
    • Theodor Papenfuhs
    • Theodor Papenfuhs
    • C07D221/14C09B57/08
    • C07D221/14C09B57/08
    • N-substituted amides or optionally N-substituted hydrazides of 4-amino-naphthalic acids which may be substituted in 3-position by a sulfo group are obtained by reacting 4-halo-1,8-naphthalic anhydride with a primary amine or an optionally N-substituted hydrazine having a pK.sub.a -value of at least 8, exchanging in the so-obtained 4-halo-naphthalimide the halogen for the amino group by reacting it with ammonia and, optionally, subsequent sulfonation. The products are dyeing matters useful for the coloration of synthetic fibers, plastics, oils, waxes, resins, paper, printing pastes, lacquers or natural polyamides, especially for daylight-fluorescence pigments.
    • 通过4-卤代-1,8-萘二甲酸酐与伯胺或任选地,通过使4-卤代-1,8-萘二酸酐反应,可以通过磺基可以在3-位上被取代的N-取代酰胺或任选的N-取代的4-氨基 - 萘甲酸酰肼 具有pKa值至少为8的N-取代的肼,通过使其与氨反应,并任选地随后进行磺化,在如此获得的4-卤代萘酰亚胺中交换卤素的氨基。 该产品是用于合成纤维,塑料,油,蜡,树脂,纸,印刷浆,漆或天然聚酰胺着色的染色物质,特别是用于日光荧光颜料。