5-乙氧基-1-苯并呋喃 | 861603-71-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 中文名称: 5-乙氧基-1-苯并呋喃
• 英文名称: 5-ethoxybenzofuran
• 英文别名: 5-Ethoxy-1-benzofuran
• CAS: 861603-71-6
• 化学式: C₁₀H₁₀O₂
• 分子量: 162.188
• InChiKey: LWBQKGGSVAEWSB-UHFFFAOYSA-N

物化性质

• 沸点：
  236.9±13.0 °C(Predicted)
• 密度：
  1.104±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  12
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  22.4
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  硼酸三甲酯 、 5-乙氧基-1-苯并呋喃 在 盐酸 、 正丁基锂 作用下， 以 四氢呋喃 为溶剂， 以56%的产率得到5-ethoxybenzofuran-2-boronic acid
  参考文献：
  名称：

  C-苯并五元杂芳环类芳基葡萄糖苷衍生物及其制备方法与用途

  摘要：

  本发明公开了一种如通式(Ⅰ)所示的C-苯并五元杂芳环类芳基葡萄糖苷衍生物，该衍生物或其中间体的制备方法，以及该衍生物的用途。其中，R、R1、R2、R3、R4、X、Y如说明书中所定义。所述的C-苯并五元杂芳环类芳基葡萄糖苷衍生物结构新颖，对SGLT-2具有很强的抑制活性，同时对SGLT-1和SGLT-2的选择比也很高，可用于制备治疗和预防与SGLT-2相关疾病的药物。

  公开号：

  CN105294785A

文献信息

• Composition containing carbon nanotubes having coating thereof and process for producing them
  申请人：Saitoh Takashi

  公开号：US20060052509A1

  公开（公告）日：2006-03-09

  The object of the present invention is to provide a carbon nanotube composition that does not impair the characteristics of the carbon nanotubes itself, allows the carbon nanotubes to be dispersed or solubilized in a solvent, does not cause separation or aggregation of the carbon nanotubes even during long-term storage, has superior electrical conductivity, film formability and moldability, can be easily coated or covered onto a base material, and the resulting coated film has superior moisture resistance, weather resistance and hardness; a composite having a coated film composed thereof; and, their production methods. In order to achieve this object, the present invention provides a carbon nanotube composition that contains a conducting polymer (a) or heterocyclic compound trimer (i), a solvent (b) and carbon nanotubes (c), and may additionally contain a high molecular weight compound (d), a basic compound (e), a surfactant (f), a silane coupling agent (g) and colloidal silica (h) as necessary; a composite having a coated film composed of the composition; and, their production methods.

  本发明的目的是提供一种碳纳米管组合物，不会影响碳纳米管本身的特性，使碳纳米管可以分散或溶解在溶剂中，在长期储存期间不会导致碳纳米管分离或聚集，具有优异的电导性、成膜性和成型性，可以轻松地涂覆或覆盖在基材上，所得到的涂层膜具有优异的防潮性、耐候性和硬度；一种由涂层膜组成的复合材料；以及它们的生产方法。为了实现这一目的，本发明提供了一种碳纳米管组合物，其中包含导电聚合物(a)或杂环化合物三聚体(i)、溶剂(b)和碳纳米管(c)，并可根据需要另外包含高分子量化合物(d)、碱性化合物(e)、表面活性剂(f)、硅烷偶联剂(g)和胶体二氧化硅(h)；一种由该组合物组成的涂层膜复合材料；以及它们的生产方法。
• Carbon Nanotube Composition, Composite Having a Coated Film Composed of the Same, and Their Production Methods
  申请人：SAITOH Takashi

  公开号：US20090321688A1

  公开（公告）日：2009-12-31

  The object of the present invention is to provide a carbon nanotube composition that does not impair the characteristics of the carbon nanotubes itself, allows the carbon nanotubes to be dispersed or solubilized in a solvent, does not cause separation or aggregation of the carbon nanotubes even during long-term storage, has superior electrical conductivity, film formability and moldability, can be easily coated or covered onto a base material, and the resulting coated film has superior moisture resistance, weather resistance and hardness; a composite having a coated film composed thereof; and, their production methods. In order to achieve this object, the present invention provides a carbon nanotube composition that contains a conducting polymer (a) or heterocyclic compound trimer (i), a solvent (b) and carbon nanotubes (c), and may additionally contain a high molecular weight compound (d), a basic compound (e), a surfactant (f), a silane coupling agent (g) and colloidal silica (h) as necessary; a composite having a coated film composed of the composition; and, their production methods.

  本发明的目的是提供一种碳纳米管组合物，不会损害碳纳米管本身的特性，可以使碳纳米管分散或溶解于溶剂中，在长期存储期间不会导致碳纳米管分离或聚集，具有优异的电导率、膜成形性和成型性，可以轻松涂覆或覆盖在基材料上，并且所得到的涂层膜具有优异的防潮性、耐候性和硬度；一种由该组合物组成的涂层膜复合材料；以及它们的生产方法。为了实现这一目的，本发明提供了一种碳纳米管组合物，它包含导电聚合物(a)或杂环化合物三聚体(i)、溶剂(b)和碳纳米管(c)，并可以根据需要另外包含高分子化合物(d)、碱性化合物(e)、表面活性剂(f)、硅烷偶联剂(g)和胶体二氧化硅(h)；一种由该组合物组成的涂层膜复合材料；以及它们的生产方法。
• LIQUID CRYSTAL COMPOSITION
  申请人：Sumitomo Chemical Company, Limited

  公开号：US20170335191A1

  公开（公告）日：2017-11-23

  A liquid crystal composition which prevents production of an alignment defect of a liquid crystal compound and also has excellent storage stability during dissolution in a solvent is provided. The liquid crystal composition is suitable for constituting a retardation film capable of favorable circular polarization conversion. The liquid crystal composition includes a polymerizable liquid crystal compound having 3 or more ring structures in the main chain, and aluminum. A content of the aluminum is 1 ppm or more and 170 ppm or less relative to the polymerizable liquid crystal compound.

  提供了一种液晶组合物，可以防止液晶化合物的对准缺陷产生，并且在溶剂中溶解时具有优异的储存稳定性。该液晶组合物适用于构成具有良好圆偏振转换的减速膜。该液晶组合物包括具有3个或更多环结构的可聚合液晶化合物和铝。铝的含量相对于可聚合液晶化合物为1 ppm或更多，170 ppm或更少。
• Liquid crystal composition
  申请人：Sumitomo Chemical Company, Limited

  公开号：US10336938B2

  公开（公告）日：2019-07-02

  A liquid crystal composition containing a polymerizable liquid crystal compound (A) having 5 or more ring structures in its main chain and a polymer (B) of the polymerizable liquid crystal compound (A) having 5 or more ring structures in its main chain, which inhibits occurrence of an orientation defect of a liquid crystal compound and exhibits excellent storage stability when dissolved in a solvent is provided.

  本发明提供了一种液晶组合物，其中含有主链上具有 5 个或更多环状结构的可聚合液晶化合物（A）和主链上具有 5 个或更多环状结构的可聚合液晶化合物（A）的聚合物（B），该组合物能抑制液晶化合物取向缺陷的发生，并在溶解于溶剂中时表现出优异的储存稳定性。
• Liquid crystal composition, method of producing the same, and retardation film constituted from the same
  申请人：Sumitomo Chemical Company, Limited

  公开号：US11193065B2

  公开（公告）日：2021-12-07

  A liquid crystal composition is provided containing a polymerizable liquid crystal compound, the composition having high preservation stability when dissolved in a solvent and also having the ability to restrain the development of orientation defects of the liquid crystal compound. A method of producing such a liquid crystal composition is also provided with ease. The liquid crystal composition includes a first polymerizable liquid crystal compound having five or more ring structures on its principal chain and represented by the following formula (A) and a second polymerizable liquid crystal compound having five or more ring structures and represented by the following formula (B).

  提供了一种含有可聚合液晶化合物的液晶组合物，该组合物溶解在溶剂中时具有很高的保存稳定性，还能抑制液晶化合物取向缺陷的发展。此外，还提供了一种生产这种液晶组合物的简便方法。该液晶组合物包括主链上具有五个或五个以上环结构并由下式（A）表示的第一种可聚合液晶化合物和具有五个或五个以上环结构并由下式（B）表示的第二种可聚合液晶化合物。