申请人:KONICA CORPORATION
公开号:EP0422505A1
公开(公告)日:1991-04-17
A silver halide photographic light-sensitive material is disclosed, which contains a novel yellow coupler in its silver hlide emulsion layer. The yellow coupler is represented by the following Formula I:
wherein Y is a hydrogen bond donating group; R is an alkyl group, an aryl group or a heterocyclic group; R₃ is a halogen atom, a hydroxyl group, a nitro group or a monovalent organic group; m is an integer of 0 to 4, provided that the groups represented by R₃ may be the same or different when m is 2 or more; and Z is a hydrogen atom or a substituent capable of splitting off upon rection with the oxdation product of an aromatic primary amine color developing agent.
本发明公开了一种卤化银感光材料,其卤化银乳剂层中含有一种新型黄色耦合剂。黄色耦合剂由下式 I 表示:
其中,Y 是氢键捐赠基团;R 是烷基、芳基或杂环基团;R₃ 是卤素原子、羟基、硝基或一价有机基团;m 是 0 至 4 的整数,但当 m 为 2 或 2 以上时,R₃ 所代表的基团可以相同或不同;Z 是氢原子或取代基,在与芳香族伯胺显色剂的氧化产物反应时能够分裂。