Title:
PHOTOGRAPHIC MATERIAL
Document Type and Number:
Japanese Patent JPS5811928
Kind Code:
A
Abstract:
Photographic silver halide material which comprises at least one silver halide emulsion layer coated on a support, there being present in the silver halide emulsion layer(s), or in a layer in operative contact with at least one silver halide emulsion layer, a compound of the formula wherein W is hydrogen, alkyl, -NHCOR1 or -COR1, wherein R1 is alkyl or alkenyl, cycloalkyl, aralkyl, aryl, phenoxymethylamino or halogen; X is a substituent in the coupling position and is a leaving group selected from hydrogen, chlorine, bromine, -SR11 wherein R11 is alkyl, aryl or a heterocyclic group, or X is a nitrogen-containing heterocyclic residue attached at a ring nitrogen atom; Y is a group having the formula wherein Q is selected from the residues: (a) -COOR4 or -CONR4R5 where R4 is hydrogen, alkyl optionally interrupted by 1 or more oxygen atoms, alkenyl, cycloalkyl, aralkyl or aryl, and R5 is hydrogen or alkyl or R4 and R5, together with the nitrogen atom to which they are each bonded, may form a 5- or 6-membered heterocyclic ring; (b) -OM wherein M is R5 or -COR6 wherein R5 is as defined above and R6 is hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl or aryl; (c) -NR7R8 wherein R7 is hydrogen or alkyl and R8 is hydrogen, or acyl or R7 and R8, together with the nitrogen atom to which they are bonded, form a 5- or 6-membered heterocyclic ring; (d) -PO(OR9)(O)xR10 wherein x is 0 or 1, R9 is hydrogen or alkyl, R10 is hydrogen or alkyl if x is 1, and R10 is alkyl if x is 0 or R9 and R10 may be linked together to form an alkylene chain; (e) -SO2T where T is -OH or -NR4R5 wherein R4 and R5 are as defined above or (f) -CN; n is an integer from 1 to 20; k is 1 or 2; R2 and R3 independently are alkyl and, when Q is -CO2R4, either R2 or R3 is optionally substituted by one or two -CO2R4 groups, or at least one of R2 and R3 is so linked to the residue -CnH2n+1-k that there is formed a cycloalkylene residue substituted by -(CO2R4)k in which the groups R4 are the same or different and wherein R4 and k are as defined above; or salts thereof with acids or bases. The resorcinol compounds used yield good dark black image dyes when coupled in a photographic color development process.
Inventors:
SUTEFUAN RODORITSUKU POSUTORU
Application Number:
JP10406382A
Publication Date:
January 22, 1983
Filing Date:
June 18, 1982
Export Citation:
Assignee:
CIBA GEIGY AG
International Classes:
G03C7/32; C07C27/00; C07C37/14; C07C39/11; C07C49/825; C07C49/83; C07C49/835; C07C49/84; C07C67/00; C07C69/732; C07C231/00; C07C233/25; C07C233/43; C07C233/54; C07C301/00; C07C309/24; C07C311/29; C07C313/00; C07C323/39; C07C323/62; C07C323/66; C07D257/04; C07F9/38; C07F9/40; G03C1/00; G03C7/305; G03C7/34; (IPC1-7): C07C39/11; C07C69/732; C07C103/30; C07C143/24; C07C143/78; C07C149/36; C07D257/04; C07F9/40; G03C1/06; G03C7/32
Attorney, Agent or Firm:
Ryoji Kawase