知搜-全球专利检索

  1. 登录
  2. 注册

搜索结果

29 条记录 (耗时 0.01 秒)

    Photographic products and processes
    4.
    发明授权
    Photographic products and processes 失效
    摄影产品和工艺

    公开(公告)号：US4631344A

    公开(公告)日：1986-12-23

    申请号：US728210

    申请日：1985-04-29

    申请人： Myron S. Simon ,  David P. Waller

    发明人： Myron S. Simon ,  David P. Waller

    IPC分类号： C09B1/28 ,  C09B1/40 ,  G03C8/10 ,  C07D277/04 ,  C07D277/06

    CPC分类号： C09B1/28 ,  C09B1/40 ,  G03C8/10

    摘要： Photographic products and processes for the imagewise generation of a dye from a color shifted dye precursor of a preformed image dye, said precursor having at least one ##STR1## group, wherein R is hydrogen, alkyl, provided that the .alpha.-carbon does not have a hydrogen atom attached thereto, aryl such as phenyl or substituted phenyl, e.g. p-nitrophenyl, or heterocyclic such as pyridine; R.sub.1 -R.sub.6 are hydrogen, alkyl, preferably having from 1 to 6 carbon atoms, or aryl; n is 0 or 1; and T is a moiety containing a thiazolidin-2-yl group which upon silver-assisted cleavage of said thiazolidin-2-yl group results in the formation of a ##STR2## group, which may be protonated under the reaction conditions, followed by cleavage of said ##STR3## which cleavage is anchimerically assisted or accelerated by said ##STR4## to provide after protonation, an ##STR5## group in a dye chromophore. In a preferred embodiment the precursor is a substantially colorless compound.

    摘要翻译： 用于从预成型图像染料的色移染料前体成像地生成染料的照相产品和方法，所述前体具有至少一个基团，其中R是氢，烷基，条件是α-碳不含 与其连接的氢原子，芳基如苯基或取代的苯基，例如 对硝基苯基或杂环如吡啶; R 1 -R 6是氢，烷基，优选具有1至6个碳原子，或芳基; n为0或1; 并且T是含有噻唑烷-2-基的部分，其在所述噻唑烷-2-基的银辅助裂解时导致形成“IMAGE”基团，其可以在反应条件下被质子化，然后裂解 的所述，通过所述在染色发色团中质子化之后的“IMAGE”基团被定位地辅助或加速裂解。 在优选的实施方案中，前体是基本上无色的化合物。

    oxnhxr
    7.
    发明授权
    oxnhxr 失效

    公开(公告)号：US2538313A

    公开(公告)日：1951-01-16

    申请号：US2538313D

    CPC分类号： C09B1/42 ,  C09B1/40

    Anthraquinone compound
    10.
    发明授权
    Anthraquinone compound 失效
    蒽醌化合物

    公开(公告)号：US06777564B2

    公开(公告)日：2004-08-17

    申请号：US10022411

    申请日：2001-12-20

    申请人： Lain-Tze Lee ,  Jinun-Ban Yeh

    发明人： Lain-Tze Lee ,  Jinun-Ban Yeh

    IPC分类号： C07D30734

    CPC分类号： C09B1/40 ,  A61K31/16 ,  A61K31/221 ,  A61K31/403 ,  C07C50/34

    摘要： A novel compound with anthraquinone structure and having the following foluma (I): wherein R1, R2 and R3 each independently is hydrogen, hydroxy, amino or C1-6 alkyl group; R4 is hydrogen, C1-18 alkyl carbonyl, C1-6 alkyl group substituted by at least a functional group; R5 is hydrogen amino or a group of the following formula wherein R1, R2, R3 and R4 are defined as the above; and R and R′ each independently is hydrogen, hydroxyl, amino, C1-6 alkyl group or a group of the following formula wherein R1, R2, R3 and R4 are defined as the above.

    摘要翻译： 具有蒽醌结构的新化合物，具有以下组分（I）：其中R 1，R 2和R 3各自独立地为氢，羟基，氨基或C 1-6烷基; R4是氢，C1-18烷基羰基，至少被官能团取代的C1-6烷基; R5是氢氨基或下列化学式的基团，R1，R2，R3和R4定义如上; 并且R和R'各自独立地为氢，羟基，氨基，C 1-6烷基或下列化学式的基团，R 1，R 2，R 3和R 4如上所定义。