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194 条记录 (耗时 0.029 秒)

    Process for preparing 2-chloro-benzothiazoles or 2-chloro-benzoxazoles
    6.
    发明授权
    Process for preparing 2-chloro-benzothiazoles or 2-chloro-benzoxazoles 失效
    制备2-氯 - 苯并噻唑或2-氯 - 苯并恶唑的方法

    公开(公告)号：US5502201A

    公开(公告)日：1996-03-26

    申请号：US230177

    申请日：1994-04-20

    申请人： Volker Ka/ ss

    发明人： Volker Ka/ ss

    IPC分类号： B01J31/02 ,  C01B17/02 ,  C01B17/027 ,  C07B61/00 ,  C07D263/58 ,  C07D277/68 ,  C07D277/70 ,  C07D277/72 ,  C07D263/54

    CPC分类号： C07D263/58 ,  C01B17/0253 ,  C07D277/68 ,  C07D277/70 ,  C07D277/72

    摘要： The title compounds of the formula ##STR1## in which R.sup.1 and R.sup.2, independently of one another, represent hydrogen, straight-chain or branched C.sub.1 -C.sub.4 -alkyl, straight-chain or branched C.sub.1 -C.sub.4 -alkoxy, nitro, fluorine, chlorine, bromine, SO.sub.2 Cl, cyano or SO.sub.2 -C.sub.1 -C.sub.4 -alkyl, andX represents sulphur or oxygen,can be prepared from the corresponding 2-mercapto-benzothiazoles or 2-mercapto-benzoxazoles by chlorination with thionyl chloride in the presence of phosphorous acid compounds of the formulaYP(OR.sup.5).sub.2 (III),in whichR.sup.5 represents hydrogen, straight-chain or branched, substituted or unsubstituted C.sub.1 -C.sub.12 -alkyl, phenyl or C.sub.7 -C.sub.10 -aralkyl andY represents hydrogen or OR.sup.5.

    摘要翻译： 式（I）的标题化合物，其中R 1和R 2彼此独立地表示氢，直链或支链C 1 -C 4 - 烷基，直链或支链C 1 -C 4 - 烷氧基，硝基， 氟，氯，溴，SO2Cl，氰基或SO2-C1-C4-烷基，X表示硫或氧，可以由相应的2-巯基 - 苯并噻唑或2-巯基 - 苯并恶唑通过氯化在亚硫酰氯存在下制备 的式YP（OR5）2（III）的亚磷酸化合物，其中R 5表示氢，直链或支链的，取代或未取代的C 1 -C 12 - 烷基，苯基或C 7 -C 10 - 芳烷基，Y代表氢或OR 5 。

    Method of preparing 2-mercaptobenzothiazole and benzothiazole
    7.
    发明授权
    Method of preparing 2-mercaptobenzothiazole and benzothiazole 失效
    制备2-巯基苯并噻唑和苯并噻唑的方法

    公开(公告)号：US5276206A

    公开(公告)日：1994-01-04

    申请号：US61229

    申请日：1993-05-17

    申请人： Adolf Sicheneder ,  Bardo Becker

    发明人： Adolf Sicheneder ,  Bardo Becker

    IPC分类号： C07D277/62 ,  C07D277/72 ,  C07D209/02

    CPC分类号： C07D277/62 ,  C07D277/72

    摘要： 2-mercaptobenzothiazole and benzothiazole are prepared from dibenzothiazyl disulphide by reacting dibenzothiazyl disulphide in the presence of an alkali and/or alkaline earth hydroxide solution at temperatures from 40.degree. to 120.degree. C. until a constant pH value in the range from 8 to 10 has been reached, then treating the reaction mixture with an aqueous solution of mineral acids at temperatures from 10.degree. to 100.degree. C., and subsequently removing benzothiazole by distillation or extraction from the reaction mixture containing 2-mercaptobenzothiazole.

    摘要翻译： 2-二甲基苯并噻唑和苯并噻唑由二苯并噻唑二硫化物通过在碱和/或碱土金属氢氧化物溶液存在下，在40至120℃的温度下，使二苯并噻唑二硫化物反应，直到8至10的恒定pH值为 然后在10℃至100℃的温度下用无机酸水溶液处理反应混合物，随后通过蒸馏或从含有2-巯基苯并噻唑的反应混合物中萃取除去苯并噻唑。

    Method for processing silver halide photographic light-sensitive material
    8.
    发明授权
    Method for processing silver halide photographic light-sensitive material 失效
    卤化银照相感光材料的处理方法

    公开(公告)号：US4920043A

    公开(公告)日：1990-04-24

    申请号：US323873

    申请日：1989-03-15

    申请人： Minoru Ohashi ,  Shoichi Horii

    发明人： Minoru Ohashi ,  Shoichi Horii

    IPC分类号： C07D231/56 ,  C07D233/42 ,  C07D235/06 ,  C07D235/26 ,  C07D235/28 ,  C07D249/10 ,  C07D249/12 ,  C07D249/18 ,  C07D257/04 ,  C07D263/58 ,  C07D271/06 ,  C07D271/07 ,  C07D277/70 ,  C07D277/72 ,  C07D285/08 ,  C07D293/12 ,  C07D401/12 ,  C07D403/12 ,  C07D413/12 ,  C07D417/12 ,  G03C1/34 ,  G03C5/305

    CPC分类号： G03C5/305 ,  C07D231/56 ,  C07D233/42 ,  C07D235/06 ,  C07D235/26 ,  C07D235/28 ,  C07D249/10 ,  C07D249/12 ,  C07D249/18 ,  C07D257/04 ,  C07D263/58 ,  C07D271/07 ,  C07D277/70 ,  C07D277/72 ,  C07D285/08 ,  C07D293/12 ,  C07D401/12 ,  C07D403/12 ,  C07D413/12 ,  C07D417/12 ,  G03C1/346

    摘要： The present invention provides a method for photographic processing of a silver halide photographic light-sensitive material with high sensitivity and with less fog. This method comprises imagewise exposing a silver halide photographic light-sensitive material and then developing the exposed light-sensitive material in the presence of at least one compound selected from the group consisting of the compounds represented by the following formulas (I)-(IV): ##STR1## wherein Z represents a group of atoms necessary to form a condensed aromatic ring which may have a substituent in addition to ##STR2## R represents a hydrogen atom or a monovalent organic group, R.sub.1 represents a hydrogen atom or a substituted or unsubstituted alkyl group and X represents an oxygen atom, a sulfur atom, a selenium atom or >N--R.sub.2 wherein R.sub.2 represents a hydrogen atom or a substituted or unsubstituted alkyl group; ##STR3## wherein Y represents a group of atoms necessary to form a heterocyclic ring having two or more nitrogen atoms, Z represents a group of atoms necessary to form a condensed aromatic ring which may have a substituent in addition to ##STR4## and R represents a hydrogen atom or a monovalent organic group; and ##STR5## wherein Y represents a group of atoms necessary to form a nitrogen-containing heterocyclic ring containing no condensed aromatic ring, R represents a hydrogen atom or a monovalent organic group, A represents an arylene group and n is 0 or 1.

    摘要翻译： 本发明提供了一种以高灵敏度和较少雾度对卤化银照相感光材料进行照相处理的方法。 该方法包括成像曝光卤化银照相感光材料，然后在至少一种选自由下式（I） - （IV）表示的化合物组成的组中的化合物存在下显影曝光的感光材料） （II）其中Z表示形成可以具有取代基的稠合芳环所必需的一组原子，另外，R表示氢原子或一价有机基团，R 1 表示氢原子或取代或未取代的烷基，X表示氧原子，硫原子，硒原子或> N-R2，其中R2表示氢原子或取代或未取代的烷基; 其中Y表示形成具有两个以上氮原子的杂环所必需的原子团，Z表示形成除了IMA之外可具有取代基的稠合芳环所需的原子团，R表示 氢原子或一价有机基团; （IV）其中Y表示形成不含缩合芳环的含氮杂环所必需的原子团，R表示氢原子或一价有机基团，A表示亚芳基，n表示0或 1。

    Purification of mercaptobenzothiazole
    9.
    发明授权
    Purification of mercaptobenzothiazole 失效
    巯基苯并噻唑的纯化

    公开(公告)号：US4515957A

    公开(公告)日：1985-05-07

    申请号：US410170

    申请日：1982-08-20

    申请人： Chong-Kuang Shaw

    发明人： Chong-Kuang Shaw

    IPC分类号： C07D277/72

    CPC分类号： C07D277/72

    摘要： Crude MBT is purified and substantially decolorized by treating same with an alkaline solution to form an MBT salt solution, measuring pH of the salt solution when adding the alkaline solution until an abrupt rise in pH is observed and stopping addition of the alkaline solution in response thereto, treating the salt solution with a solvent to extract solvent-soluble impurities, oxidizing the salt solution by introducing oxygen into an enclosed vessel containing the salt solution and vigorously agitating the solution until oxygen uptake essentially stops, diluting the salt solution with water, filtering the salt solution to remove precipitated impurities, and concentrating the solution.

    摘要翻译： 粗制MBT通过用碱性溶液处理而纯化并基本上脱色，形成MBT盐溶液，当加入碱性溶液时测量盐溶液的pH值，直到观察到pH骤然上升，停止加入碱溶液 用溶剂处理盐溶液以萃取溶剂可溶性杂质，通过将氧气引入含有盐溶液的封闭容器中并剧烈搅拌溶液直至氧气吸收基本停止，用水稀释盐溶液，过滤 盐溶液去除沉淀的杂质，浓缩溶液。

    N-Substituted thioxobenzothiazolines
    10.
    发明授权
    N-Substituted thioxobenzothiazolines 失效
    N-取代的噻吩并噻唑啉

    公开(公告)号：US4447618A

    公开(公告)日：1984-05-08

    申请号：US55103

    申请日：1979-07-05

    申请人： John J. D'Amico

    发明人： John J. D'Amico

    IPC分类号： A01N43/78 ,  C07D277/72 ,  C07D277/70

    CPC分类号： C07D277/72 ,  A01N43/78

    摘要： The present invention relates to compounds of the formula ##STR1## wherein: T is hydrogen, lower alkyl, halo, --CF.sub.3, --CN or --NO.sub.2 ; x is 1 or 2; n is 1 or 2; m is zero or 1; when m is 1, R is hydrogen, lower alkyl, halo (lower) alkyl, lower alkenyl, halo (lower) alkenyl, benzyl, phenyl, carbamoyl (lower) alkyl, cyano (lower) alkyl or agriculturally acceptable salts; when m is zero, R is ##STR2## R.sub.1 and R.sub.2 independently equal hydrogen, lower alkyl, lower alkenyl, lower alkoxy (lower) alkyl or phenyl; R.sub.3 is hydrogen or lower alkyl; a is 4, 5 or 6.

    摘要翻译： 本发明涉及下式化合物：其中：T是氢，低级烷基，卤素，-CF 3，-CN或-NO 2; x为1或2; n为1或2; m为零或1; 当m为1时，R为氢，低级烷基，卤代（低级）烷基，低级烯基，卤代（低级）烯基，苄基，苯基，氨基甲酰基（低级）烷基，氰基（低级）烷基或农业上可接受的盐; 当m为0时，R为R 1和R 2独立地为氢，低级烷基，低级烯基，低级烷氧基（低级）烷基或苯基; R3是氢或低级烷基; a是4,5或6。