Dye-forming coupler, silver halide photographic light-sensitive material, and azomethine dye compound
申请人:——
公开号:US20030091946A1
公开(公告)日:2003-05-15
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:
1
wherein Q is a residue that forms, together with the —N—C═N— moiety, a nitrogen-containing 6-membered ring; R
A
is a certain alkyl group having at least 7 carbon atoms, or -L-R
1
; X is an aryl group; Y is a hydrogen atom, or a group capable of being split-off upon a coupling reaction; wherein, when R
A
is -L-R
1
, L is a divalent linking group, and R
1
is a substituent; and -L-R
1
does not represent an alkyl, alkenyl, alkynyl, or aryl group, and -L-R
1
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.
公式(I)的染料形成偶合剂,含有该偶合剂的银卤化物感光材料,以及从偶合剂派生的偶氮甲基染料化合物:其中Q是一个残基,与—N—C═N—基团共同形成一个含氮的6元环;RA是至少有7个碳原子的某种烷基,或-L-R1;X是芳基基团;Y是氢原子或在偶合反应中可被分离的基团;当RA是-L-R1时,L是二价连接基团,R1是取代基;且-L-R1不代表烷基、烯基、炔基或芳基基团,-L-R1也不代表含有杂环的基团,该杂环与氮含量6元环的氮原子结合在一起。