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    • 9. 发明授权
    • Photographic element containing pyrazolone pug releasing coupler and
imaging process employing same
    • 含有吡唑啉酮发酵成色剂的摄影元件及其使用的成像方法
    • US5670306A
    • 1997-09-23
    • US730558
    • 1996-10-15
    • Jerrold Neal PoslusnyLawrence G. AndersonJared Ben MooberryWojciech Kazimierz SlusarekZheng Zi Wu
    • Jerrold Neal PoslusnyLawrence G. AndersonJared Ben MooberryWojciech Kazimierz SlusarekZheng Zi Wu
    • G03C7/305G03C7/384
    • G03C7/30529G03C7/384Y10S430/156Y10S430/158
    • The invention provides a photographic element comprising a light-sensitive silver halide emulsion layer having associated therewith a 1-aryl-2-pyrazolin-5-one coupler bearing a 4-aryloxy coupling-off group containing a group capable of releasing a photographically useful group (PUG) wherein: (1) the 1-aryl-2-pyrazolin-5-one ring contains a 3-cyano substituent or a substituent linked to the 3-position by an acyl group, thio group, sulfoxide group, sulfone group, or a tetrahedral carbon atom which tetrahedral carbon atom has bonded thereto three other atoms or substituent groups for which the sum of the .sigma.* values is at least 1.5; and (2) the 4-aryloxy coupling-off group: (a) contains ring substituents selected so that the sum of the Hammett's sigma constants for all substituents on the aryloxy ring is at least 0.3 but does not contain a nitro substituent in the position ortho to the oxygen atom bonded to the pyrazolone ring; and (b) contains (i) in at least one position ortho or para to the oxygen atom bonding the aryloxy group to the pyrazolone ring comprising a tetrahedral carbon atom bonded to a PUG or to another timing group which timing group is in turn bonded to a PUG directly or through a further timing group, or (ii) in a position ortho to the oxygen atom bonding the aryloxy group to the pyrazolone ring a carbamate group (with or without a methylene group bridge to the aryloxy ring) bonded to a PUG or to another timing group which timing group is in turn bonded to a PUG directly or through a further timing group; and provided that one or more of the aryloxy ring members or ring substituents may join to form one or more additional rings.
    • 本发明提供了一种照相元件,其包含感光卤化银乳剂层,其具有与芳基-2-吡唑啉-5-酮偶合剂相关联的1-芳基-2-吡唑啉-5-酮偶联剂,其具有含有能够释放摄影有用基团的4-芳氧基偶联基团 (PUG)其中:(1)1-芳基-2-吡唑啉-5-酮环含有3-氰基取代基或通过酰基,硫基,亚砜基,砜基与3-位连接的取代基, 或四面体碳原子与四个碳原子键合的三个碳原子三个其他原子或Σ*值之和至少为1.5的取代基; 和(2)4-芳氧基偶联离子基团:(a)含有选择的环取代基,使得芳氧基环上所有取代基的哈米特σ常数之和至少为0.3,但在该位置上不含有硝基取代基 与吡唑啉酮环结合的氧原子的邻位; 和(b)包含(i)至少一个位于与芳氧基键合的吡唑啉酮环上的氧原子的至少一个位置,该吡唑啉酮环包含与PUG键合的四面体碳原子或另一个定时基团,该正时基团又结合到 PUG直接或通过另外的正时基团,或(ii)在与芳氧基相对于吡唑啉酮环的氧原子邻位的位置,与PUG键合的氨基甲酸酯基(具有或不具有与芳氧基环的亚甲基桥) 或者另一定时组,该定时组又直接或通过另外的定时组结合到PUG; 并且条件是一个或多个芳氧基环成员或环取代基可以连接形成一个或多个另外的环。
    • 10. 发明授权
    • Photographic element containing a stable aryloxypyrazolone coupler and
process employing same
    • 含有稳定的芳氧基吡唑啉酮偶联剂的摄影元件及其使用方法
    • US5576167A
    • 1996-11-19
    • US367552
    • 1994-12-30
    • Jerrold N. PoslusnyLawrence G. AndersonJared B. MooberryZheng Z. Wu
    • Jerrold N. PoslusnyLawrence G. AndersonJared B. MooberryZheng Z. Wu
    • G03C7/00G03C7/384G03C7/305
    • G03C7/384Y10S430/156
    • A photographic element comprises a light-sensitive silver halide emulsion layer having associated therewith a coupler based on a 1-aryl-2-pyrazolin-5-one ring and represented by formula I: ##STR1## wherein: Ar.sup.1 and Ar.sup.2 are each independently aryl groups comprising a carboaromatic or heteroaromatic ring;X, Y, and Z are bonded to a carbon atom alpha to the 3-position and are independently selected from the group consisting of hydrogen and substituent groups such that the sum of the Taft .sigma.* values for X, Y, and Z is at least 1.5;R represents n independently selected substituent groups bonded to the Ar.sup.2 ring, provided that the sum of the appropriate Hammett .sigma. constants for all R substituent groups is at least 0.3, and provided further that two of X, Y, and Z may join to form a ring; andn is 0 to 5;provided that R may not be a nitro group ortho to the oxygen atom bonding Ar.sup.2 to the 1-aryl-2-pyrazolin-5-one ring.
    • 照相元件包括感光卤化银乳剂层,其具有基于1-芳基-2-吡唑啉-5-酮环并由式I表示的成色剂:其中:Ar 1和Ar 2各自独立地为 包含芳族或杂芳族环的芳基; X,Y和Z键合到3-位上的碳原子,并且独立地选自氢和取代基,使得X,Y和Z的Taft sigma *值之和在 至少1.5; R表示n个独立选择的与Ar2环键合的取代基,条件是所有R取代基的适当哈米特σ常数之和至少为0.3,并且进一步提供X,Y和Z中的两个可以连接形成 环; n为0〜5; 条件是R可以不是与Ar2键合到1-芳基-2-吡唑啉-5-酮环上的氧原子邻位的硝基。