3-ethyl-2-methylene-2,3-dihydro-benzothiazole | 25082-84-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并噻唑类
• 英文名称: 3-ethyl-2-methylene-2,3-dihydro-benzothiazole
• 英文别名: 2-Methylen-3-ethyl-benzthiazolin；3-Ethyl-2-methylen-benzothiazolin；Benzothiazole, 3-ethyl-2,3-dihydro-2-methylene-；3-ethyl-2-methylidene-1,3-benzothiazole
• CAS: 25082-84-2
• 化学式: C₁₀H₁₁NS
• 分子量: 177.27
• InChiKey: PRDRWKWRZYHBKH-UHFFFAOYSA-N

物化性质

• 熔点：
  126-128 °C (decomp)(Solv: ligroine (8032-32-4))
• 沸点：
  263.1±40.0 °C(Predicted)
• 密度：
  1.16±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  28.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3-ethyl-2-methylene-2,3-dihydro-benzothiazole 在 吡啶 、 zinc(II) chloride 作用下， 生成 1,3,5-tris-(3-ethyl-benzothiazol-2-yl)-pentamethinediium; diiodide
  参考文献：
  名称：

  Hamer et al., Journal of the Chemical Society, 1947, p. 1434,1440

  摘要：

  DOI：
• 作为产物：
  描述：

  3-乙基-2-甲基苯并唑对甲基苯磺酸酯 在 1,1,2,3-四甲基胍 、 sodium hydride 作用下， 以 苯 为溶剂， 生成 3-ethyl-2-methylene-2,3-dihydro-benzothiazole
  参考文献：
  名称：

  分离自苯并噻唑鎓季盐的单体亚甲基碱

  摘要：

  DOI：

  10.1016/s0040-4039(01)88249-6

文献信息

• Agent for coloring fibers and method for temporarily coloring fibers
  申请人：——

  公开号：US20020172651A1

  公开（公告）日：2002-11-21

  The object of the present invention is a preparation for coloring fibers, which is prepared before use by mixing an acidic component (A1), containing at least one enamine of Formula (I)/(Ia) with a component (A2), containing a Schiff's base of Formula (II) 1 as well as a method for temporarily coloring fibers, for which the coloration, obtained with the aforementioned coloring agent, can be removed once again at any time by a sulfite-colorizing agent.

  本发明的对象是一种用于染色纤维的制剂，该制剂在使用前通过混合含有至少一种Formula（I）/（Ia）的恩胺的酸性组分（A1）与含有Formula（II）的席夫碱基的组分（A2）制备而成。同时提供了一种临时染色纤维的方法，其中使用上述染色剂获得的着色可以随时通过亚硫酸盐染色剂再次去除。
• Composition, optical film including composition, and method of producing optical film
  申请人：SUMITOMO CHEMICAL COMPANY, LIMITED

  公开号：US10557978B2

  公开（公告）日：2020-02-11

  The present invention provides, as a composition containing a smectic liquid crystal compound which can be used for production of a homogeneous optical film at a temperature around room temperature, a composition containing a smectic liquid crystal compound having a 1,4-cyclohexyl group, which smectic liquid crystal compound having the 1,4-cyclohexyl group contains (i) 100 parts by mass of a smectic liquid crystal compound having a trans-1,4-cyclohexyl group and (ii) 0.1 parts by mass to 10 parts by mass of a smectic liquid crystal compound having a cis-1,4-cyclohexyl group.

  本发明提供了一种含有单晶液晶化合物的组合物，可用于在室温左右的温度下生产均 匀光学薄膜，该组合物含有具有 1，4-环己基的单晶液晶化合物，该具有 1，4-环己基 的单晶液晶化合物包含 (i) 100 份（按质量）具有反式-1，4-环己基的单晶液晶化合物和 (ii) 0.1-10质量份具有顺式-1,4-环己基基团的smectic液晶化合物。
• Polarizing plate and polarizing plate assembly
  申请人：Sumitomo Chemical Company, Limited

  公开号：US11009639B2

  公开（公告）日：2021-05-18

  An object of the present invention is to solve the problems which can be peculiarly generated in a coating-type optical film, and provide an optical film which hardly causes deterioration in optical performance with time, a display device equipped with the optical film, and a process for producing the optical film, and there is provided a polarizing plate having a diffusion preventing layer A having the thickness of 0.05 μm to 3 μm, a polarizing film comprising a polymer of a polymerizable liquid crystal and a dichroic coloring matter, and a diffusion preventing layer B having the thickness of 0.05 μm to 3 μm, in this order.

  本发明的目的是解决镀膜型光学薄膜所特有的问题，并提供一种几乎不会随时间推移而导致光学性能下降的光学薄膜、一种装有该光学薄膜的显示装置以及一种生产该光学薄膜的工艺。05 μm 至 3 μm，由可聚合液晶聚合物和二色性着色物质组成的偏光膜，以及厚度为 0.05 μm 至 3 μm 的防扩散层 B。
• Agent and method for dyeing keratin fibres
  申请人：——

  公开号：US20030041391A1

  公开（公告）日：2003-03-06

  The present invention relates to an agent for dyeing keratin fibers, containing at least one compound with a nucleophilic reaction center, at least one alcohol from the group comprising aryl alcohol derivatives and benzyl alcohol derivatives and at least one suitable oxidizing enzyme, as well as to a method for dyeing keratin fibers using this agent.

  本发明涉及一种角蛋白纤维染色剂，其中含有至少一种具有亲核反应中心的化合物、至少一种由芳基醇衍生物和苄基醇衍生物组成的醇类和至少一种合适的氧化酶，以及使用该染色剂对角蛋白纤维进行染色的方法。
• Agent for coloring fibers
  申请人：——

  公开号：US20030101520A1

  公开（公告）日：2003-06-05

  The object of the invention is a preparation for dyeing fibers, especially hair, which is prepared before use by mixing an acidic component (A1), containing at least an enamine of formula (I) or its acid addition salt of Formula (Ia) 1 with an alkaline component (A2), containing at least one carbonyl compound and at least one primary amine, as well as a method for temporarily dyeing fibers, by means of which the coloration, obtained with the aforementioned dyeing preparation, is removed once again at any later time by a sulfite-containing decolorizing agent.

  本发明的目的是一种用于纤维，特别是头发染色的制剂，在使用前将酸性组分 （A1）混合，其中至少含有式（I）的烯胺或其式（Ia）的酸加成盐。 1 和碱性成分（A2）（至少含有一种羰基化合物和至少一种伯胺），以及一种对纤维进行临时染色的方法，通过这种方法，用上述染色制剂获得的着色可在以后的任何时候用含亚硫酸盐的脱色剂再次去除。