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14 条记录 (耗时 0.018 秒)

    Photographic products and processes
    5.
    发明授权
    Photographic products and processes 失效
    摄影产品和工艺

    公开(公告)号：US4468450A

    公开(公告)日：1984-08-28

    申请号：US500414

    申请日：1983-06-02

    申请人： Frank A. Meneghini ,  Paul S. Palumbo

    发明人： Frank A. Meneghini ,  Paul S. Palumbo

    IPC分类号： C07D277/04 ,  C07D277/06 ,  G03C8/04 ,  G03C8/08 ,  G03C1/10 ,  G03C1/40 ,  G03C5/54 ,  G03C7/00

    CPC分类号： G03C8/08 ,  C07D277/04 ,  C07D277/06 ,  G03C8/045 ,  Y10S430/156 ,  Y10S430/159

    摘要： This invention relates to photographic processes and products for forming an image in dye from a colorless precursor of a preformed image dye which is substituted with a moiety containing a thiazolidinyl group, said thiazolidinyl group (a) being capable of undergoing cleavage imagewise in the presence of an imagewise distribution of silver ion and/or soluble silver complex and (b) possessing a substituent on the carbon atom in the 2-position which upon cleavage of said thiazolidinyl group, undergoes a .beta.-elimination reaction followed by an intramolecularly accelerated nucleophilic displacement reaction, which moiety maintains the precursor in its colorless form at least until said thiazolidinyl group undergoes said cleavage. In a further embodiment, this sequence of reactions is used to release an imagewise distribution of a photographically useful reagent which reagent may be, for example, a photographically active reagent.

    摘要翻译： 本发明涉及用于从含有噻唑烷基的部分取代的预成型染料的无色前体形成染料的照相方法和产品，所述噻唑烷基（a）能够在存在 银离子和/或可溶性银络合物的成像分布和（b）在2-位上的碳原子上具有取代基，其在所述噻唑烷基裂解后进行β-消光反应，随后进行分子内加速的亲核取代反应 ，该部分将前体保持为无色形式，至少直到所述噻唑烷基基团经历所述切割。 在另一个实施方案中，该反应序列用于释放照相用试剂的成像分布，该试剂可以是例如摄影活性试剂。

    Photographic products and processes
    6.
    发明授权
    Photographic products and processes 失效
    摄影产品和工艺

    公开(公告)号：US4591646A

    公开(公告)日：1986-05-27

    申请号：US633697

    申请日：1984-07-23

    申请人： Frank A. Meneghini ,  Paul S. Palumbo

    发明人： Frank A. Meneghini ,  Paul S. Palumbo

    IPC分类号： C07D277/04 ,  C07D277/06 ,  G03C8/04 ,  G03C8/08

    CPC分类号： G03C8/08 ,  C07D277/04 ,  C07D277/06 ,  G03C8/045

    摘要： This invention relates to photographic processes and products for forming an image in dye from a colorless precursor of a preformed image dye which is substituted with a moiety containing a thiazolidinyl group, said thiazolidinyl group (a) being capable of undergoing cleavage imagewise in the presence of an imagewise distribution of silver ion and/or soluble silver complex and (b) possessing a substituent on the carbon atom in the 2-position which upon cleavage of said thiazolidinyl group, undergoes a .beta.-elimination reaction followed by an intramolecularly accelerated nucleophilic displacement reaction, which moiety maintains the precursor in its colorless form at least until said thiazolidinyl group undergoes said cleavage. In a further embodiment, this sequence of reactions is used to release an imagewise distribution of a photographically useful reagent which reagent may be, for example, a photographically active reagent.

    摘要翻译： 本发明涉及用于从含有噻唑烷基的部分取代的预成型染料的无色前体形成染料的照相方法和产品，所述噻唑烷基（a）能够在存在 银离子和/或可溶性银络合物的成像分布和（b）在2-位上的碳原子上具有取代基，其在所述噻唑烷基裂解后进行β-消光反应，随后进行分子内加速的亲核取代反应 ，该部分将前体保持为无色形式，至少直到所述噻唑烷基基团经历所述切割。 在另一个实施方案中，该反应序列用于释放照相用试剂的成像分布，该试剂可以是例如摄影活性试剂。

    Enzyme controlled release system
    7.
    发明授权
    Enzyme controlled release system 失效
    ENZYME控制释放系统

    公开(公告)号：US5112739A

    公开(公告)日：1992-05-12

    申请号：US227141

    申请日：1988-08-02

    申请人： Frank A. Meneghini ,  Paul S. Palumbo

    发明人： Frank A. Meneghini ,  Paul S. Palumbo

    IPC分类号： A61K47/48 ,  C07H15/203 ,  C07H15/26 ,  C07H17/00 ,  C07H17/075 ,  C12Q1/00 ,  C12Q1/34 ,  C12Q1/44 ,  G01N33/543 ,  G01N33/58

    CPC分类号： C07H15/203 ,  A61K47/48215 ,  C07H15/26 ,  C12Q1/00 ,  C12Q1/34 ,  G01N33/581 ,  C12Q2334/00

    摘要： This invention relates to an enzyme-controlled release method for the release of a leaving group comprising:contacting a compound represented by the formula ##STR1## wherein R, R.sub.1, R.sub.2 and R.sub.3 each independently is hydrogen, a substituent affecting the mobility or reactivity of the compound or a substituent including a biologically active group;X is leaving group;Z is an enzyme substrate moiety;--CR.sub.2 R.sub.3 X is either ortho or para to the --O--Z moiety;with an active capable of cleaving said enzyme substrate moiety Z from said compound;whereby said leaving group X is released from said compound.

    摘要翻译： 本发明涉及一种用于释放离去基团的酶控制释放方法，其包括：使由式（I）表示的化合物与其中R，R 1，R 2和R 3各自独立地为氢， 该化合物或包含生物活性基团的取代基; X离开团体 Z是酶底物部分; -CR2R3X是-O-Z部分的邻位或对位; 具有能够从所述化合物切割所述酶底物部分Z的活性物质; 由此所述离去基团X从所述化合物中释放。

    Thiazolidine-substituted phenyl sulfonic acids
    8.
    发明授权
    Thiazolidine-substituted phenyl sulfonic acids 失效
    噻唑烷取代的苯基磺酸

    公开(公告)号：US4332950A

    公开(公告)日：1982-06-01

    申请号：US239356

    申请日：1981-03-02

    申请人： Charles A. Kelly ,  Frank A. Meneghini

    发明人： Charles A. Kelly ,  Frank A. Meneghini

    IPC分类号： C07D277/04 ,  G03C8/10

    CPC分类号： C07D277/04 ,  G03C8/10

    摘要： This invention relates to certain 3-(thiazolidin-2'-yl)-4-hydroxy-phenyl sulfonic acids and to a method of converting said sulfonic acids to the corresponding sulfonyl chlorides by reacting said acid with neat thionyl chloride or with thionyl chloride in a chlorinated hydrocarbon. In another embodiment, the 3-(thiazolidin-2'-yl)-4-hydroxy-phenyl sulfonic acid is synthesized, without isolating intermediates, starting with the sulfonation of salicylaldehyde and then forming the 3-(thiazolidin-2'-yl) substituent.

    摘要翻译： 本发明涉及某些3-（噻唑烷-2'-基）-4-羟基 - 苯基磺酸，以及通过使所述酸与纯亚硫酰氯或亚硫酰氯反应，将所述磺酸转化为相应的磺酰氯的方法 氯化烃。 在另一个实施方案中，合成3-（噻唑烷-2'-基）-4-羟基 - 苯基磺酸，不分离中间体，起始于水杨醛的磺化，然后形成3-（噻唑烷-2'-基） 取代基。