Dye-forming coupler, silver halide photographic light-sensitive material, and azomethine dye compound
申请人:FUJIFILM Corporation
公开号:US07365199B2
公开(公告)日:2008-04-29
A dye-forming coupler of formula (I), a silver halide photographic light-sensitive material containing the coupler, and an azomethine dye compound derived from the coupler:
wherein Q is a residue that forms, together with the —N—C═N— moiety, a nitrogen-containing 6-membered ring; RA is a certain alkyl group having at least 7 carbon atoms, or -L-R1; X is an aryl group; Y is a hydrogen atom, or a group capable of being split-off upon a coupling reaction; wherein, when RA is -L-R1, L is a divalent linking group, and R1 is a substituent; and -L-R1 does not represent an alkyl, alkenyl, alkynyl, or aryl group, and -L-R1 does not represent a heterocyclic group that bonds, with a carbon atom therein, to the nitrogen atom of the nitrogen-containing 6-membered ring formed by Q and the —N—C═N— moiety.
一种化学式(I)的染料形成偶联剂,包含该偶联剂的银卤化物感光材料,以及由该偶联剂衍生的偶氮甲烷染料化合物:其中Q是一个残基,与—N—C═N—基团一起形成含氮的6元环;RA是至少有7个碳原子的某种烷基基团,或-L-R1;X是芳基基团;Y是氢原子,或在偶联反应中可被分离的基团;当RA为-L-R1时,L是一个双价连接基团,R1是一个取代基;-L-R1不代表烷基、烯基、炔基或芳基团,-L-R1不表示与氮含6元环的Q和—N—C═N—基团形成的氮原子结合的杂环基团中的碳原子。