| abstract |
PROBLEM TO BE SOLVED: To provide a novel oxonol type dye useful for photographic materials and a method for producing the same. SOLUTION: The dye having the structure (If) and a method for producing the same, comprising the following reaction sequence: In the above formula, R 3 represents methyl, phenyl, ethoxy, methoxy or amino, any of which may be substituted or unsubstituted; R 4 X is 1-chloro-2,4 - represents dinitrobenzene; and method R 1, R 2 and G containing, represents an element necessary to form an acidic methylene moiety of the substituted or unsubstituted. |