申请人:KONICA CORPORATION
公开号:EP0143570A2
公开(公告)日:1985-06-05
A silver halide color photographic material is disclosed vhich has at least one silver halide emulsion layer on a sup- ort, said silver halide emulsion layer containing at least one magenta coupler of the following formula (I) or (II):
wherein R1 and R4 are each a hydrogen atom, an alkyl group or an aryl group; R2 and R6 are each a monovalent group; R3 is an alkyl group, an aryl group or a heterocyclic group; R5 is an alkyl group or an aryl group; R7 is an alkylene group, an arylene group or a bivalent organic group having at least one alkylene bonded to at least one arylene; Ra is an alkyl group, an alkenyl group, an aryl group or a heterocyclic group; X is a single bond or an alkylene group having 1 to 5 carbon atoms; Z is a hydrogen atom or a group that can be eliminated upon coupling reaction with the oxidized product of a color developing agent; and m is an integer of 0 to 4.
本发明公开了一种卤化银彩色感光材料,它在底片上至少有一层卤化银乳剂层,所述卤化银乳剂层至少含有一种下式(I)或(II)的品红耦合剂:
其中 R1 和 R4 各为氢原子、烷基或芳基;R2 和 R6 各为单价基团;R3 为烷基、芳基或杂环基团;R5 为烷基或芳基;R7 为亚烷基、亚芳基或至少有一个亚烷基与至少一个亚芳基键合的二价有机基团;Ra 是烷基、烯基、芳基或杂环基; X 是单键或具有 1 至 5 个碳原子的亚烷基; Z 是氢原子或在与显色剂的氧化产物偶联反应时可被消除的基团;以及 m 是 0 至 4 的整数。