Photographic element containing a substituted 4-nitrophenylazo-1-naphthol cyan dye
申请人:EASTMAN KODAK COMPANY
(a New Jersey corporation)
公开号:EP0176075A2
公开(公告)日:1986-04-02
Photographic elements and diffusion transfer assemblages are described which employ a non-diffusible 4-nitrophenylazo-1-naphthol compound having a 5-benzenesulfonamido or 5-benzenecarbonamido substituent which contains an ortho alkoxy or aryloxy group.
In a preferred embodiment, the compound is capable of releasing at least one diffusible cyan dye moiety and has the formula:
wherein:-
(a) J represents S02 or CO,
(b) R represents a substituted or unsubstituted alkyl group of from 1 to 10 carbon atoms or a substituted or unsubstituted aryl group of from 6 to 12 carbon atoms,
(c) G represents a hydroxy group, a salt thereof, or a hydrolyzable precursor thereof,
(d) CAR represents a ballasted carrier moiety, and
(e) D', D2, and D3 each independently represents H or one or more electron-withdrawing groups selected from -SO2Y1, -CONY'Y2, -Cl, -COY', -C≡N and -SO2NY21Y2, where Y' and Y2 each independently represents hydrogen, a substituted or unsubstituted alkyl group of from 1 to 10 carbon atoms or a substituted or unsubstituted aryl group of from 6 to 12 carbon atoms.
The released dyes have improved stability to light.
本文描述的照相元件和扩散转移组件采用了一种不可扩散的 4-硝基苯偶氮-1-萘酚化合物,该化合物具有一个 5-苯磺酰胺基或 5-苯甲酰胺基取代基,该取代基含有一个正交烷氧基或芳氧基。
在一个优选的实施方案中,该化合物能释放出至少一种可扩散的青色染料分子,其分子式如下:
其中
(a) J 代表 S02 或 CO、
(b) R 代表 1 至 10 个碳原子的取代或未取代的烷基或 6 至 12 个碳原子的取代或 未取代的芳基、
(c) G 代表羟基、其盐或其可水解前体、
(d) CAR 代表压载载体分子,以及
(e) D'、D2 和 D3 各自独立地代表 H 或一个或多个选自-SO2Y1、-CONY'Y2、-Cl、-COY'、-C≡N 和-SO2NY21Y2 的抽电子基团,其中 Y' 和 Y2 各自独立地代表氢、1 至 10 个碳原子的取代或未取代的烷基或 6 至 12 个碳原子的取代或未取代的芳基。
释放出的染料具有更好的光稳定性。