Photographic silver halide material comprising resorcinol compounds as colour couplers
申请人:CIBA-GEIGY AG
公开号:EP0071569A1
公开(公告)日:1983-02-09
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, -SR" wherein R" is alkyl, aryl or a heterocyclic group, or X is a nitrogen-containing heterocyclic residue atteched at a ring nitrogen atom; Y is a group having the fomtula
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 -COR5 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 compound used yield good dark black image dyes when coupled in a photographic colour development process.
卤化银摄影材料,它包括至少一个涂布在支架上的卤化银乳剂层,在卤化银乳剂层中,或在与至少一个卤化银乳剂层有效接触的层中,存在式中化合物
其中 W 是氢、烷基、-NHCOR1 或 -COR1,其中 R1 是烷基或烯基、环烷基、芳烷基、芳基、苯氧基甲氨基或卤素;X 是偶联位置上的取代基,是选自氢、氯、溴、-SR"(其中 R "是烷基、芳基或杂环基)的离去基团,或 X 是连接在环氮原子上的含氮杂环残基;Y 是具有以下结构的基团
其中 Q 选自以下残基:
a) -COOR4 或 -CONR4R5 其中 R4 是氢、任选由 1 个或多个氧原子间断的烷基、烯基、环烷基、芳基或芳基,R5 是氢或烷基,或 R4 和 R5 与它们各自键合的氮原子一起可形成 5 或 6 元杂环;
b) -OM 其中 M 是 R5 或 -COR5 其中 R5 如上定义,R6 是氢、烷基、烯基、环烷基、芳基或芳基;
c) -NR7R8 其中 R7 是氢或烷基,R8 是氢或酰基,或 R7 和 R8 与它们所键合的氮原子一起形成 5 或 6 元杂环;
d) -PO(OR9)(O)xR10 其中 x 为 0 或 1,R9 为氢或烷基,R10 为氢或烷基(如果 x 为 1),R10 为烷基(如果 x 为 0)或 R9 和 R10 可连接在一起形成亚烷基链;
e) -SO2T 其中 T 是 -OH 或 -NR4R5 其中 R4 和 R5 如上定义或
f) -CN;n 为 1 至 20 的整数;k 为 1 或 2;R2 和 R3 独立地为烷基,当 Q 为 -CO2R4 时,R2 或 R3 被一个或两个 -CO2R4 基团任选取代,或 R2 和 R3 中至少有一个与残基 -CnH2n+1-k 连接,从而形成被 -(CO2R4)k 取代的环亚烷基残基,其中基团 R4 相同或不同,且 R4 和 k 如上所定义;或其与酸或碱的盐。
所使用的间苯二酚化合物在摄影彩色显影过程中可产生良好的深黑色图像染料。