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公开(公告)号:US5763618A
公开(公告)日:1998-06-09
申请号:US639767
申请日:1996-04-29
申请人: Ryuzou Watanabe , Shinri Tanaka , Katsuji Ota , Michiko Nagato , Tomio Horiuchi
发明人: Ryuzou Watanabe , Shinri Tanaka , Katsuji Ota , Michiko Nagato , Tomio Horiuchi
IPC分类号: C07C319/14 , C07C323/41 , C07D231/28 , C07D231/52 , C07D257/04
CPC分类号: C07D231/52 , C07C319/14 , C07D231/28
摘要: A method of manufacturing a sulfide comprises the steps of (a) dissolving a thiol in a solvent to form a solution; (b) oxidizing the thiol to a disulfide in the presence of a first oxidizing agent in the solution; (c) reacting the disulfide with a coupler in the presence of a base and a second oxidizing agent, without isolation of said disulfide from the solution, to form a reaction mixture in which the sulfide is produced; and (d) obtaining said sulfide.
摘要翻译: 制备硫化物的方法包括以下步骤:(a)将硫醇溶解在溶剂中以形成溶液; (b)在溶液中的第一氧化剂存在下将硫醇氧化成二硫化物; (c)在碱和第二氧化剂的存在下使二硫醚与成色剂反应,而不从溶液中分离出所述二硫化物,形成其中生成硫化物的反应混合物; 和(d)获得所述硫化物。
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公开(公告)号:US4009035A
公开(公告)日:1977-02-22
申请号:US543044
申请日:1975-01-22
申请人: Tamotsu Kojima , Shui Sato , Takaya Endo , Tugumoto Usui , Tomio Horiuchi
发明人: Tamotsu Kojima , Shui Sato , Takaya Endo , Tugumoto Usui , Tomio Horiuchi
摘要: A cyan coupler of the formula A -- NHCO(CF.sub.2 CF.sub.2).sub.n H wherein A is a phenolic or naphtholic cyan coupler residue and n is a positive integer of 1 to 7, incorporated in a light-sensitive silver halide photographic material produces a cyan dye photographic image which is favorable in light absorption characteristics and excellent in fastness when the coupler is developed with an aromatic primary amine type developing agent.
摘要翻译: 式A-NHCO(CF2CF2)nH的青色成色剂,其中A是酚类或萘酚青色成色剂残基,n为1至7的正整数,并入感光卤化银照相材料中,产生青色染料照相图像 当用芳族伯胺型显影剂显影时,其吸光特性良好,牢度优异。
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