ethyl 3-oxo-7-(triisopropylsilyl)hept-6-ynoate | 917745-85-8

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 酮酸及其衍生物
• 英文名称: ethyl 3-oxo-7-(triisopropylsilyl)hept-6-ynoate
• 英文别名: Ethyl 3-oxo-7-[tri(propan-2-yl)silyl]hept-6-ynoate；ethyl 3-oxo-7-tri(propan-2-yl)silylhept-6-ynoate
• CAS: 917745-85-8
• 化学式: C₁₈H₃₂O₃Si
• 分子量: 324.536
• InChiKey: WQZMMCHRWLMWEN-UHFFFAOYSA-N

物化性质

• 沸点：
  366.9±22.0 °C(Predicted)
• 密度：
  0.936±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.51
• 重原子数：
  22
• 可旋转键数：
  10
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  ethyl 3-oxo-7-(triisopropylsilyl)hept-6-ynoate 以 吡啶 、 乙醇 为溶剂， 反应 28.0h， 生成 1-butyl-3-(4-oxo-6-(4-(triisopropylsilyl)but-3-ynyl)-1,4-dihydropyrimidin-2-yl)urea
  参考文献：
  名称：

  Increased Alignment of Electronic Polymers in Liquid Crystals via Hydrogen Bonding Extension

  摘要：

  Crucial for the development of enhanced electrooptic materials is the construction of highly anisotropic materials. Nematic liquid crystals are able to control the chain conformation and alignment of poly(phenylene ethynylene)s (PPEs), producing electronic polymers with chain-extended planar conformations for improved transport properties. Here, we show that the dichroic ratio, and hence polymer alignment, increases dramatically when interpolymer interactions are introduced by end capping the PPE with hydrogen bonding groups. This increased order can be readily turned off by the introduction of a competing monofunctionalized hydrogen bonding compound. The formation of hydrogen bonds between the polymers results in the formation of gels and elastomers which may be of interest for future applications.

  DOI：

  10.1021/ja065662o
• 作为产物：
  描述：

  三异丙基氯硅烷 在 正丁基锂 、 sodium hydride 作用下， 以 四氢呋喃 、 正己烷 、 甲苯 为溶剂， 反应 3.34h， 生成 ethyl 3-oxo-7-(triisopropylsilyl)hept-6-ynoate
  参考文献：
  名称：

  Increased Alignment of Electronic Polymers in Liquid Crystals via Hydrogen Bonding Extension

  摘要：

  Crucial for the development of enhanced electrooptic materials is the construction of highly anisotropic materials. Nematic liquid crystals are able to control the chain conformation and alignment of poly(phenylene ethynylene)s (PPEs), producing electronic polymers with chain-extended planar conformations for improved transport properties. Here, we show that the dichroic ratio, and hence polymer alignment, increases dramatically when interpolymer interactions are introduced by end capping the PPE with hydrogen bonding groups. This increased order can be readily turned off by the introduction of a competing monofunctionalized hydrogen bonding compound. The formation of hydrogen bonds between the polymers results in the formation of gels and elastomers which may be of interest for future applications.

  DOI：

  10.1021/ja065662o

文献信息

• Compositions including polymers aligned via interchain interactions
  申请人：Swager Timothy M.

  公开号：US09376623B2

  公开（公告）日：2016-06-28

  The present invention provides compositions, devices and methods related to the alignment of materials including polymers. In some cases, the present invention comprises the assembly of molecules (e.g., polymers) via intermolecular interactions to produce extended networks, which may have enhanced properties relative to the individual molecules. Such networks may be advantageous for use in electronics, photovoltaics, sensor applications, and the like. In some embodiments, the present invention may enhance the performance of certain optical devices, such as liquid crystal displays (e.g., color liquid crystal displays) by providing enhanced contrast ratio, faster response times, and/or lower operating voltage.

  本发明提供了与包括聚合物在内的材料排列相关的组合物、设备和方法。在某些情况下，本发明包括通过分子间相互作用组装分子（例如聚合物）以产生扩展网络，这些网络可能相对于单个分子具有增强的性能。这种网络可能在电子学、光伏、传感器应用等领域中具有优势。在某些实施方式中，本发明可以通过提供增强的对比度、更快的响应时间和/或更低的工作电压来提高某些光学设备的性能，例如液晶显示器（例如彩色液晶显示器）。
• Increased Alignment of Electronic Polymers in Liquid Crystals via Hydrogen Bonding Extension
  作者：Johan Hoogboom、Timothy M. Swager

  DOI：10.1021/ja065662o

  日期：2006.11.1

  Crucial for the development of enhanced electrooptic materials is the construction of highly anisotropic materials. Nematic liquid crystals are able to control the chain conformation and alignment of poly(phenylene ethynylene)s (PPEs), producing electronic polymers with chain-extended planar conformations for improved transport properties. Here, we show that the dichroic ratio, and hence polymer alignment, increases dramatically when interpolymer interactions are introduced by end capping the PPE with hydrogen bonding groups. This increased order can be readily turned off by the introduction of a competing monofunctionalized hydrogen bonding compound. The formation of hydrogen bonds between the polymers results in the formation of gels and elastomers which may be of interest for future applications.