spiro[benzo[f]chromene-3,2'-chromene] | 178-12-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 萘并吡喃类
• 英文名称: spiro[benzo[f]chromene-3,2'-chromene]
• 英文别名: Spiro(benzo[f]chromen-3,2'-chromen)；2,3'-Spiro<2H-1-benzopyran>-<3H-naphtho<2,1-b>pyran>；Spiro<2H-1-benzopyran-2,3'-(3'H)-naphtho<2,1-b>pyran>；Spiro<2H-1-benzopyran-2,3'-(3H)-naphtho<2,1-b>pyran>；Spiro[benzo[f]chromene-3,2'-chromene]
• CAS: 178-12-1
• 化学式: C₂₁H₁₄O₂
• 分子量: 298.341
• InChiKey: ZDRJYRSLMBINIB-UHFFFAOYSA-N

物化性质

• 沸点：
  513.6±50.0 °C(Predicted)
• 密度：
  1.31±0.1 g/cm3(Predicted)
• 熔点：
  170 °C

计算性质

• 辛醇/水分配系数(LogP)：
  5.7
• 重原子数：
  23
• 可旋转键数：
  0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.05
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  4-(2-hydroxyphenyl)but-3-en-2-one 、 2-羟基-1-萘甲醛 在 盐酸 、 高氯酸 、 乙醇 作用下， 生成 spiro[benzo[f]chromene-3,2'-chromene]
  参考文献：
  名称：

  Dickinson; Heilbron, Journal of the Chemical Society, 1927, p. 1702

  摘要：

  DOI：

文献信息

• Integrated highlighting and shading marker system
  申请人：Crayola LLC

  公开号：US11007813B2

  公开（公告）日：2021-05-18

  An integrated highlighting marker includes a multi-component marker ink comprising a base colorant and a tinting colorant. The marking system also includes a highlighting component configured to transform the base colorant from a first colored state to a second colored state based on the tinting colorant. The highlighting component may be configured to transform the primary base colorant from a colored state to a transparent state to reveal the tinting colorant.

  一种集成的高光标记包括一种多组分标记墨水，该墨水由基础着色剂和着色剂组成。打标系统还包括一个高光组件，配置用于根据着色剂将基色剂从第一着色状态转变为第二着色状态。高光组件可配置为将第一基底着色剂从有色状态转变为透明状态，以显示着色剂。
• Photochromic dyes for microsphere based sensor
  申请人：Shukla Deepak

  公开号：US20050019954A1

  公开（公告）日：2005-01-27

  A color coded bead for use in a microarray for detecting target analytes, the bead comprising: a photochromic compound in a medium, the bead having a receptor molecule on its surface; wherein the photochromic compound confers on the bead a distinct optical signature; and wherein the receptor molecule is capable of binding to a target analyte.

  用于检测目标分析物的微阵列中的彩色编码珠，该珠包括：介质中的光致变色化合物，该珠表面有受体分子；其中光致变色化合物赋予该珠独特的光学特征；其中受体分子能够与目标分析物结合。
• INTEGRATED HIGHLIGHTING AND SHADING MARKER SYSTEM
  申请人：Crayola LLC

  公开号：US20190329585A1

  公开（公告）日：2019-10-31

  Provided is an integrated highlighting marker system. The marking system includes a multi-component marker ink comprising a base colorant and a tinting colorant. The marking system also includes a highlighting component configured to transform the base colorant from a first colored state to a second colored state based on the tinting colorant. The highlighting component may be configured to transform the primary base colorant from a colored state to a transparent state to reveal the tinting colorant.
• TWO PART SILICONE MOLDABLE ERASER
  申请人：Crayola LLC

  公开号：US20200399472A1

  公开（公告）日：2020-12-24

  A moldable eraser kit includes a first silicone polymer, a second silicone polymer, an abrasive agent, a catalyst configured to catalyze a reaction between the first silicone polymer and the second silicone polymer at room temperature, and at least two containers such that the first silicone polymer, the second silicone polymer, and the catalyst are not all present in the same container. Also disclosed herein is a method of making an eraser including the steps of mixing a first silicone polymer, a second silicone polymer, a catalyst, an abrasive agent, and optionally one or more additives to form a mixture, the mixture being free of polyvinyl chloride. The method also includes molding the mixture to form a shape and curing the mixture in the shape at room temperature to form a molded eraser.
• US4384094A
  申请人：——

  公开号：US4384094A

  公开（公告）日：1983-05-17