申请人:AGFA-Gevaert, N.V.
公开号:US04822729A1
公开(公告)日:1989-04-18
Cyan-forming color couplers according to the formula: ##STR1## wherein Z is hydrogen or a coupling off group, R.sup.1 is hydrogen, a halogen atom, alkyl, or alkoxy, R.sup.2 is hydrogen or alkyl, R.sub.3 is hydrogen, a halogen atom, alkyl, alkoxy, alkylsulphonyl, alkanamidosulphonyl, alkoxycarbonyl, alkanamidocarbonyl, alkanamido, alkylsulphonamido, or cyano, R.sup.4 is a substituent standing at the 3- or 6-position of the phenol and selected from hydrogen, a halogen atom, and alkyl, and n is 0 or 1. These couplers can be incorporated into (a) red-sensitized silver halide emulsion layer(s) of a photographic multilayer color element or in a non-light-sensitive colloid layer in water-permeable relationship with the red-sensitized emulsion layer(s).
根据以下公式制备青色形成的色偶合物:##STR1## 其中Z为氢或偶联基,R.sup.1为氢、卤素原子、烷基或烷氧基,R.sup.2为氢或烷基,R.sub.3为氢、卤素原子、烷基、烷氧基、烷基磺酰基、烷基酰胺磺酰基、烷氧羰基、烷基酰胺羰基、烷基酰胺、烷基磺酰胺或氰基,R.sup.4为取代苯酚的3-或6-位上的取代基,选自氢、卤素原子和烷基,n为0或1。这些色偶合物可以被纳入(a)感光红敏银卤化物乳液层的多层彩色元素中的红敏感层或与红敏感乳液层具有水渗透性关系的非感光胶体层中。