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    • 4. 发明授权
    • Photographic elements containing new magenta-dye-forming tris couplers
    • 含有新品红色染料的三联体的摄影元件
    • US5358836A
    • 1994-10-25
    • US169465
    • 1993-12-17
    • Ping-Wah TangPhilip T. S. LauStanley W. Cowan
    • Ping-Wah TangPhilip T. S. LauStanley W. Cowan
    • C07F9/6561G03C7/32G03C7/38
    • G03C7/3835C07F9/6561G03C7/3212G03C7/3825
    • The invention provides new magenta-dye-forming couplers, new magenta dyes formed therefrom, and new photographic elements containing the new couplers. The new couplers have the structure (I): ##STR1## wherein ##STR2## has the structure (II) ##STR3## wherein each --R-- is independently a substituted or unsubstituted alkylene, alkoxylene, arylene, or aryloxylene group, andeach --L-- is independently a substituted or unsubstituted alkylene, alkoxylene, arylene, aryloxylene, or aryloxyalkylene group, and Q-- has the structure (III): ##STR4## wherein: each R.sup.1 -- is independently H-- or a substituent; each X-- is independently H-- or a coupling-off group; andeach of D, E, and Z is independently a substituted or unsubstituted methine group, .dbd.N--, or --NH--, with the provisos that one of either the D--E or the E--Z bonds is a double bond and the other is a single bond, and when the D--E bond is a carbon-carbon double bond it may form part of an aromatic ring fused with Q--, and one of D, E, and Z is a methine group bonded to ##STR5##
    • 本发明提供了新的品红色成色成色剂,由其形成的新品红染料和包含新的成色剂的新的感光元件。 新的成色剂具有结构(I):其中具有结构(II)(II)其中每个-R-独立地是取代或未取代的亚烷基,亚烷基,亚芳基或 芳氧基,芳氧基,芳氧基,芳氧基,芳氧基,芳氧基,芳氧基,芳氧基,芳氧基,芳氧基,芳氧基,芳氧基,芳氧基,芳氧基, 每个X-独立地为H或偶合离去基团; D,E和Z各自独立地为取代或未取代的次甲基,即=或 - -NH-,条件是DE或EZ键之一为双键,另一个为单键 并且当DE键是碳 - 碳双键时,它可以形成与Q-稠合的芳环的一部分,D,E和Z之一是与键合的次甲基,