Novel cyanine dyes with fused imidazolo nuclei
    5.
    发明授权
    Novel cyanine dyes with fused imidazolo nuclei 失效
    新鲜的氰胺染色体与IMIDAZOLO NUCLEI融合

    公开(公告)号:US3809691A

    公开(公告)日:1974-05-07

    申请号:US7890970

    申请日:1970-10-07

    申请人: EASTMAN KODAK CO

    IPC分类号: C09B23/10 G03C1/485

    CPC分类号: C09B23/105 G03C1/4853

    摘要: NOVEL POLYMETHINE DYES ARE PROVIDED WHICH FEATURE AN IMIDAZOLE RING JOINED AT THE CARBON ATOM IN THE 5POSITION OF THE IMIDAZOLE RING TO A DIMETHINE LINKAGE, THE IMIDIAZOLE RING HAVING FUSED TO THE (A) SIDE THEREOF THE NON-METALLIC ATOMS REQUIRED TO COMPLETE AT LEAST ONE FUSED RING, AND A SECOND DESENSITIZING NUCLEUS JOINED AT A CARBON THEREOF TO THE DIMETHINE LINKAGE. THE INVENTION ALSO PROVIDES A NOVEL PHOTOGRAPHIC SILVER HALIDE EMULSIONS, INCLUDING DIRECT POSITIVES EMULSION CONTAINING THE DYES OF THE INVENTION.

    Preparation of formylmethylene compounds and corresponding photographic dyestuffs
    8.
    发明授权
    Preparation of formylmethylene compounds and corresponding photographic dyestuffs 失效
    甲基甲基化合物的制备和相关摄影试验

    公开(公告)号:US3723419A

    公开(公告)日:1973-03-27

    申请号:US3723419D

    申请日:1967-05-17

    申请人: EASTMAN KODAK CO

    发明人: MEE J HESELTINE D

    IPC分类号: C09B23/06

    CPC分类号: C09B23/06

    摘要: Formylmethylene dye intermediates are prepared by reacting a heterocyclic quaternary salt with a complex of dialkylformamide and inorganic acid halide followed by hydrolysis. Cyanine dyes are prepared by reacting such formylmethylene dye intermediates with heterocyclic quaternary salt.

    摘要翻译: 甲酰基亚甲基染料中间体通过使杂环季盐与二烷基甲酰胺和无机酰卤的配合物反应然后水解制备。 花青染料通过使这种甲酰基亚甲基染料中间体与杂环季盐反应来制备。