Photographic element containing a high dye-yield coupler with methine
dye chromophore
    3.
    发明授权
    Photographic element containing a high dye-yield coupler with methine dye chromophore 失效
    含有高染料收率成色剂与次甲基染料发色团的摄影元件

    公开(公告)号:US5457004A

    公开(公告)日:1995-10-10

    申请号:US250744

    申请日:1994-05-27

    CPC分类号: G03C7/30547 Y10S430/156

    摘要: The invention provides a photographic element comprising a substrate bearing a photographic silver halide emulsion layer having associated therewith a high dye-yield coupler having the formula: ##STR1## wherein: COUP is a photographic coupler residue capable of coupling with oxidized color developer to form a first dye;T is a timing group;m is an integer from 0 to 2;L is a linking group selected from the group consisting of --OC(.dbd.O)--, --OC(.dbd.S)--, --SC(.dbd.O)--, --SC(.dbd.S)--, and --OC(.dbd.NSO.sub.2 R) where R is substituted or unsubstituted alkyl or aryl; andDYE is a releasable second dye or dye precursor having a particular formula including a methine dye chromophore.

    摘要翻译: 本发明提供了一种照相元件,其包含具有照相卤化银乳剂层的基底,其具有下列结构的高染料收率成色剂:其中:COUP是能够与氧化的显色剂偶联以形成 第一染料; T是一个时间组; m为0〜2的整数; L是选自-OC(= O) - , - OC(= S) - , - SC(= O) - , - SC(= S) - 和-OC(= NSO 2 R) 其中R是取代或未取代的烷基或芳基; 并且DYE是具有特定配方的可释放的第二染料或染料前体,其包含次甲基染料发色团。

    Processes for making and using alkylaminoarylcarbonyl compounds
    6.
    发明授权
    Processes for making and using alkylaminoarylcarbonyl compounds 失效
    制备和使用烷基氨基芳基羰基化合物的方法

    公开(公告)号:US6124503A

    公开(公告)日:2000-09-26

    申请号:US223863

    申请日:1998-12-31

    CPC分类号: C07C221/00 C07C2101/08

    摘要: A method of making an alkylaminoarylcarbonyl compound having Formula I: ##STR1## wherein R is an alkyl group;A is an aryl (including heteroaryl) ring;each R' is independently an alkyl group which may form a ring with Z or Z';p is 0, 1, 2, or 3;each Z, Z', and Y is independently hydrogen or a substituent; andn is 0, 1, or 2;comprising:(a) blocking the carbonyl function of an aminoarylcarbonyl compound via condensation with an active methylene compound(b) alkylating this blocked amniocarbonyl compound via reductive alkylation with an alkyl or aryl (including heteroaryl) carbonyl compound, and(c) deblocking of the blocked alkylaminoarylcarbonyl compound via base hydrolysis to regenerate the carbonyl function and give the desired alkylaminocarbonyl compound.

    摘要翻译: 制备具有式I的烷基氨基芳基羰基化合物的方法:其中R是烷基; A是芳基(包括杂芳基)环; 每个R'独立地是可以与Z或Z'形成环的烷基; p为0,1,2或3; 每个Z,Z'和Y独立地是氢或取代基; 并且n为0,1或2; 包括:(a)通过与活性亚甲基化合物缩合来阻断氨基芳基羰基化合物的羰基官能团(b)通过用烷基或芳基(包括杂芳基)羰基化合物还原烷基化将该封端的氨基羰基化合物烷基化,和(c) 通过碱水解封端的烷基氨基芳基羰基化合物以再生羰基官能团并得到所需的烷基氨基羰基化合物。