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.
                            本文描述了摄影元件和扩散转移组件,它们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:
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,(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。