摘要:
Disclosed is a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a bicyclic azole dye-forming coupler, having appended to a ring carbon at a non-coupling position thereof a substituent group represented by the formula: wherein the arrow represents the point of attachment of the substituent group to a non-coupling position of the coupler; R1, R2, R3 and R4 are independently selected hydrogen or substituent groups, provided that any two of R1, R2, R3 and R4 may join to form a ring; Ra and Rb are independently hydrogen or a substituent; each Rc and Rd is an independently selected hydrogen or an alkyl or aryl group, provided that any two of them may join to form a ring and n is 1 to 10; Re is hydrogen or an alkyl or aryl group; each Y is an independently selected substituent group and m is from 0 to 4; and Z is a substituent selected from the group consisting of —C(O)R5, —S(O)2R5, —SOR5, —P(═O)(R6)2 and —P(═O)(OR6)2 in which R5 is selected from the group consisting of alkyl, aryl, heterocyclic, alkoxy, aryloxy, alkylamino, and arylamino groups and each R6 is independently selected from the group consisting of alkyl and aryl groups; provided that Z can form a ring with any one of Rc and Rd. Such an element provides improved image dye stability.
摘要翻译:公开了一种照相元件,其包含感光卤化银乳剂层,该感光卤化银乳剂层具有与其相连的双环唑形染料形成成色剂,其在非偶合位置附加有环碳,由下式表示的取代基:其中箭头表示 取代基与偶联剂的非偶联位置的连接点; R 1,R 2,R 3和R 4独立地选自氢或取代基,条件是R 1,R 2,R 3和R 4中的任何两个可以连接形成 R a和R b独立地是氢或取代基;每个R c和R d是独立选择的氢或烷基或芳基,条件是它们中的任何两个可以连接形成环,n是1至10; Re是氢 或烷基或芳基;每个Y是独立选择的取代基,m是0-4; 并且Z是选自-C(O)R 5,-S(O)2 R 5,-SOR 5,-P(= O)(R 6)2和-P(= O)(OR 6)2的取代基,其中 R5选自烷基,芳基,杂环,烷氧基,芳氧基,烷基氨基和芳基氨基,每个R6独立地选自烷基和芳基; 只要Z可以与Rc和Rd中的任何一个形成环。 这样的元素提供了改进的图像染料稳定性。
摘要:
The disclosure describes a photographic element comprising a light sensitive silver halide emulsion layer having associated therewith a magenta dye forming coupler containing an azole nucleus and a ballasted compound having Formula I, ##STR1## wherein each R.sub.1 is independently selected from the group consisting of hydrogen and an alkyl, aryl, acyl and acylamino group;L represents a linking atom or group bonded to the phenyl ring by a heteroatom;each "a" independently represents a substituent group at least one of which is linked to the phenyl ring by an N, S, C or O atom and q is 1 to 5;provided that the selection of L and the "a" groups results in no more than one oxygen bond to the phenyl ring.
摘要:
The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler represented by formula II: whereinX is hydrogen or a coupling-off group;R.sup.1, R.sup.2, and R.sup.3 are independently selected alkyl groups, provided that any two of R.sup.1, R.sup.2, and R.sup.3 may join to form a ring;R.sup.4 is hydrogen or a substituent, provided that R.sup.3 and R.sup.4 may join to form a ring when R.sup.4 is a substituent;R.sup.a is hydrogen or a substituent;Y is a substituent with at least one Y substituent having a formula selected from the group consisting of --CONR.sup.b R.sup.c, --NHCOR.sup.d, and --SO.sub.2 R.sup.e, wherein R.sup.b, R.sup.c, and R.sup.d are independently selected from the group consisting of H, alkyl, aryl, and heterocyclic groups and R.sup.e is selected from the group consisting of an alkyl group, an aryl group, a heterocyclic group, --NR.sup.g R.sup.h, and --OR.sup.i wherein R.sup.g, R.sup.h, and R.sup.i are selected from the same group as R.sup.a and n is from 1 to 5.The element exhibits improved magenta dye light stability.
摘要:
The invention provides a photographic element comprising a silver halide emulsion layer having associated therewith a dye-forming coupler represented by formula II: ##STR1## wherein X is hydrogen or a coupling-off group;R.sup.1, R.sup.2, and R.sup.3 are independently selected alkyl groups, provided that any two of R.sup.1, R.sup.2 and R.sup.3 may join to form a ring;R.sup.4 is hydrogen or a substituent, provided that R.sup.3 and R.sup.4 may join to form a ring when R.sup.4 is a substituent;R.sup.a is hydrogen or a substituent;each Y is an independently selected substituent with at least one Y substituent in the 2-position (relative to oxygen) having the formula --NHSO.sub.2 R.sup.f, wherein R.sup.f is an alkyl or aryl group, and n is from 1 to 5.The element exhibits improved magenta dye light stability.
摘要翻译:本发明提供了一种照相元件,其包含卤化银乳剂层,其具有与式II所代表的染料形成成色剂:其中X为氢或偶合离去基团; R 1,R 2和R 3是独立选择的烷基,条件是R 1,R 2和R 3中的任何两个可以连接形成环; R4是氢或取代基,条件是当R 4为取代基时,R 3和R 4可以连接形成环; Ra是氢或取代基; 每个Y是在具有式-NHSO 2 R f的2-位(相对于氧)中具有至少一个Y取代基的独立选择的取代基,其中Rf是烷基或芳基,n是1至5.元素表现出改进 品红染料光稳定。
摘要:
Compounds having the structure ##STR1## wherein (Z--COO is the residue of an iodinated aromatic acid;n is an integer from 1 to 20;R.sup.1 and R.sup.2 are independently H, alkyl, fluoroalkyl, cycloalkyl, aryl, aralkyl, alkoxy or aryloxy;R.sup.3 and R.sup.4 are independently H, alkyl, fluoroalkyl, cycloalkyl, aryl, aralkyl, alkoxy, aryloxy, halogen, hydroxy or acylamino; andR.sup.5 is alkyl, cycloalkyl, aryl, aralkyl, alkoxyalkyl or acetamidoalkyl;are useful as contrast agents in x-ray imaging compositions and methods.
摘要翻译:具有结构的化合物,其中(Z-COO是碘化芳族酸的残基; n是1至20的整数; R 1和R 2独立地是H,烷基,氟代烷基,环烷基,芳基,芳烷基,烷氧基或芳氧基 R 3和R 4独立地是H,烷基,氟烷基,环烷基,芳基,芳烷基,烷氧基,芳氧基,卤素,羟基或酰基氨基; R 5是烷基,环烷基,芳基,芳烷基,烷氧基烷基或乙酰氨基烷基; 射线成像组合物和方法。