473723-99-8Relevant academic research and scientific papers
Dye-forming coupler, silver halide photographic light-sensitive material, and azomethine dye compound
-
Page/Page column 32-34, (2008/06/13)
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.
