pyridin-4-ol; monohydrate | 158868-14-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡啶及其衍生物
• 英文名称: pyridin-4-ol; monohydrate
• 英文别名: Pyridin-4-ol; Monohydrat；4-Pyridinol hydrate；1H-pyridin-4-one;hydrate
• CAS: 158868-14-5
• 化学式: C₅H₅NO*H₂O
• 分子量: 113.116
• InChiKey: ASQDNEVKDRVHHS-UHFFFAOYSA-N

物化性质

• 熔点：
  65 °C

计算性质

• 辛醇/水分配系数(LogP)：
  -0.45
• 重原子数：
  8
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  30.1
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  硫酸二甲酯 、 pyridin-4-ol; monohydrate 在 氢溴酸 、 sodium methylate 作用下， 以 甲醇 、 丙酮 为溶剂， 以46%的产率得到1-methyl-4-pyridone hydrobromide salt
  参考文献：
  名称：

  Tee, Oswald S.; Paventi, Martino, Canadian Journal of Chemistry, 1983, vol. 61, p. 2556 - 2562

  摘要：

  DOI：

文献信息

• Color photographs and method for preparation of the same
  申请人：Fuji Photo Film Co., Ltd.

  公开号：US05194348A1

  公开（公告）日：1993-03-16

  Disclosed in a color photograph containing a storability-improving compound capable of forming a chemical bond with an aromatic amine series color developing agent that remains in a photographic material after having been processed for color development to give a chemically inactive and substantially colorless compound in at least one photographic layer on a support. Also disclosed is a method for preparation of color photographs wherein a photographic material containing a silver halide emulsion layer and a color image-forming coupler capable of forming a dye by an oxidation-coupling reaction with an aromatic amine series color developing agent, as coated on a support, is imagewise exposed to light and then subjected to photographic processing, comprising carrying out the photographic processing in the presence of the afore described storability-improving compound. By the use of the storability-improving compound, the color images formed on the color photographs do not fade when stored for long periods of time.

  本发明公开了一种包含可与芳香胺系色发展剂形成化学键的稳定性改进化合物的彩色照片，该芳香胺系色发展剂在彩色显影处理后仍然保留在感光材料中，以在支撑体上的至少一个感光层中形成化学不活性且基本无色的化合物。本发明还公开了一种制备彩色照片的方法，其中将银卤化物乳剂层和能够与芳香胺系色发展剂通过氧化偶联反应形成染料的彩色图像形成偶联剂涂覆在支撑体上的感光材料，暴露于图像状光线下，然后进行照相处理，包括在上述改进稳定性化合物的存在下进行照相处理。通过使用改进稳定性化合物，彩色照片上形成的彩色图像在长时间存储后不会褪色。
• Color photographs, a process for preparing them and color photographic
  申请人：Fuji Photo Film Co., Ltd.

  公开号：US05098805A1

  公开（公告）日：1992-03-24

  There is provided a color photograph improved in preservability that has been obtained by making chemically inactive the aromatic amine type color developing agents and their oxidized product that remains in the silver halide photographic materials after color development processing. The color photograph exhibits excellent performance in that its white background can be prevented from discoloring even during long-term storage or display, and deterioration of a dye image caused by the remaining color developing agent being taken into the photographic material after the color development, bleaching, and fixing processes, or due to its oxidized product, can be prevented.

  提供了一种改善保质期的彩色照片，该照片通过使芳香胺类色发展剂及其氧化产物在彩色发展处理后仍留存在银卤素照相材料中而使其在化学上不活性化。该彩色照片表现出卓越的性能，即其白色背景可以在长期存储或展示期间防止变色，且由于彩色发展剂在彩色发展、漂白和定影过程中被吸入照相材料或其氧化产物而导致的染料图像的退化可以被防止。
• Wibaut; Broekman, Recueil des Travaux Chimiques des Pays-Bas, 1939, vol. 58, p. 885,890
  作者：Wibaut、Broekman

  DOI：——

  日期：——