spiro form of 1',3',3'-trimethylspiro<2H-1-benzopyran-2,2'-indoline>-8-carboxylic acid | 20463-45-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: spiro form of 1',3',3'-trimethylspiro<2H-1-benzopyran-2,2'-indoline>-8-carboxylic acid
• 英文别名: 1',3',3'-trimethylspiro-[2H-1-benzopyran-2,2'-indoline]-8-carboxylic acid；1,3,3-Trimethyl-8'-carboxylspiro；1,3,3-Trimethylspiro-8'-carbonsaeure；1,3,3-Trimethylspiro；1',3',3'-trimethyl-1',3'-dihydro-spiro[chromene-2,2'-indole]-8-carboxylic acid；1,3,3-Trimethylspiro-8'-carbonsaeure；1',3',3'-Trimethylspiro[chromene-2,2'-indole]-8-carboxylic acid
• CAS: 20463-45-0
• 化学式: C₂₀H₁₉NO₃
• 分子量: 321.376
• InChiKey: XYLWAQYPYOJBKP-UHFFFAOYSA-N

物化性质

• 沸点：
  500.9±50.0 °C(Predicted)
• 密度：
  1.32±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.5
• 重原子数：
  24
• 可旋转键数：
  1
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  49.8
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  spiro form of 1',3',3'-trimethylspiro<2H-1-benzopyran-2,2'-indoline>-8-carboxylic acid 以 氯仿 为溶剂， 30.0 ℃ 、117.67 MPa 条件下， 生成 merocyanine form of 1',3',3'-trimethylspiro<2H-1-benzopyran-2,2'-indoline>-8-carboxylic acid
  参考文献：
  名称：

  1',3',3'-三甲基螺[2H-1-苯并吡喃-2,2'-二氢吲哚]-8-羧酸热转化动力学研究

  摘要：

  1',3',3'-三甲基螺[2H-1-苯并吡喃-2,2'-二氢吲哚]-8-羧酸（8-COOH-SP）从其螺型到部花青的热转化率已经在高压下在几种溶剂中测量了这种形式。观察到速率的小的溶剂和压力依赖性。这些结果表明该反应的过渡态的电子结构是非极性的，它类似于先前观察到的所谓 6-硝基螺吡喃从其部花青形式到其螺形式的热转化。

  DOI：

  10.1246/bcsj.59.3666
• 作为产物：
  描述：

  3-醛基水杨酸 、 1,3,3-三甲基-2-亚甲基吲哚啉 以 乙醇 为溶剂， 反应 4.0h， 以68%的产率得到spiro form of 1',3',3'-trimethylspiro<2H-1-benzopyran-2,2'-indoline>-8-carboxylic acid
  参考文献：
  名称：

  Decoloration rates of a photomerocyanine dye as a visual probe into hydrogen bonding interactions

  摘要：

  在静态和薄膜流体系统中探测氢键效应的视觉标记。

  DOI：

  10.1039/c4cc09857a

文献信息

• Preparation of spiropyrans from 3-formylsalicylic acid derivatives
  作者：V. I. Pantsyrnyi、M. A. Gal'bershtam

  DOI：10.1007/bf00477971

  日期：1971.1
• LITHOGRAPHIC PRINTING PLATE PRECURSOR AND PRINTING METHOD THEREOF
  申请人：FUJIFILM Corporation

  公开号：US20150000544A1

  公开（公告）日：2015-01-01

  A lithographic printing plate precursor includes at least a white substrate and an image-recording layer, the white substrate has a reflection density of 0.25 or less at a side having the image-recording layer, and the image-recording layer contains an infrared absorbing agent, an onium salt polymerization initiator, a polymerizable compound and a color-forming compound and is capable of being removed with at least any one of printing ink and dampening water.
• LITHOGRAPHIC PRINTING PLATE PRECURSOR AND PLATE-MAKING METHOD USING SAME
  申请人：FUJIFILM Corporation

  公开号：US20190187557A1

  公开（公告）日：2019-06-20

  Provided are a thermal fusion-type lithographic printing plate precursor in which the visibility is excellent, ablation during laser exposure is suppressed, and the contamination of dampening water and printing ink during on-machine development is suppressed by a lithographic printing plate precursor having a support and an image-recording layer, in which the image-recording layer is capable of forming an image by infrared laser exposure, a non-exposed portion of the image-recording layer is removable by at least one of dampening water and printing ink on a printer, and the image-recording layer contains (1) a color developing system in which a hue change generated by infrared laser exposure is Δa/Δb≥0.6 and (2) 70% by mass or more of a thermoplastic polymer particle with respect to a solid content of the image-recording layer and a plate-making method in which the thermal fusion-type lithographic printing plate precursor is used.
• US5551973A
  申请人：——

  公开号：US5551973A

  公开（公告）日：1996-09-03
• US5593486A
  申请人：——

  公开号：US5593486A

  公开（公告）日：1997-01-14