2-[2-Hydroxyethyl-[5-[4-[(4-nitrophenyl)diazenyl]phenoxy]pentyl]amino]ethanol

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 偶氮苯
• 英文名称: 2-[2-Hydroxyethyl-[5-[4-[(4-nitrophenyl)diazenyl]phenoxy]pentyl]amino]ethanol
• 英文别名: 2-[2-hydroxyethyl-[5-[4-[(4-nitrophenyl)diazenyl]phenoxy]pentyl]amino]ethanol
• 化学式: C₂₁H₂₈N₄O₅
• 分子量: 416.477
• InChiKey: NHKYMXHYQXFARS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  30
• 可旋转键数：
  13
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.43
• 拓扑面积：
  124
• 氢给体数：
  2
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  异氰酸苯酯 、 2-[2-Hydroxyethyl-[5-[4-[(4-nitrophenyl)diazenyl]phenoxy]pentyl]amino]ethanol 以 甲苯 为溶剂， 反应 1.0h， 生成 2-[5-[4-[(4-nitrophenyl)diazenyl]phenoxy]pentyl-[2-(phenylcarbamoyloxy)ethyl]amino]ethyl N-phenylcarbamate
  参考文献：
  名称：

  Thermal Properties of Liquid-Crystalline Diols and Corresponding Bis-Urethanes with Mesogenic Groups of Various Structures in Side Chains

  摘要：

  The liquid-crystalline diols with mesogenic groups of different structures were synthetized and their temperature behavior and existence of mesophases were determined. These compounds were also reacted with phenylisocyanate to form bis-urethanes at the ratio of reactive groups [OH]/[NCO] = 1/1. The changes of phase transition temperatures due to the change of H-O-H to H-N-H interactions have been investigated. Generally, the introduction of a phenylurethane group into the molecule suppresses the occurence of mesophases; in the case of simple mesogens the mesophases disappear completely. Stiff substituents bound to mesogen as end groups (such as the phenyl group, alkoxy group, etc.) stabilize the mesophases to such a degree that the negative influence of urethane group is compensated and the LC properties are recovered.

  DOI：

  10.1080/15421400390193954
• 作为产物：
  描述：

  4-羟基-4-硝基偶氮苯 在 potassium carbonate 作用下， 以 异丙醇 、 丙酮 为溶剂， 反应 96.0h， 生成 2-[2-Hydroxyethyl-[5-[4-[(4-nitrophenyl)diazenyl]phenoxy]pentyl]amino]ethanol
  参考文献：
  名称：

  Thermal Properties of Liquid-Crystalline Diols and Corresponding Bis-Urethanes with Mesogenic Groups of Various Structures in Side Chains

  摘要：

  The liquid-crystalline diols with mesogenic groups of different structures were synthetized and their temperature behavior and existence of mesophases were determined. These compounds were also reacted with phenylisocyanate to form bis-urethanes at the ratio of reactive groups [OH]/[NCO] = 1/1. The changes of phase transition temperatures due to the change of H-O-H to H-N-H interactions have been investigated. Generally, the introduction of a phenylurethane group into the molecule suppresses the occurence of mesophases; in the case of simple mesogens the mesophases disappear completely. Stiff substituents bound to mesogen as end groups (such as the phenyl group, alkoxy group, etc.) stabilize the mesophases to such a degree that the negative influence of urethane group is compensated and the LC properties are recovered.

  DOI：

  10.1080/15421400390193954

文献信息

• Thermal Properties of Liquid-Crystalline Diols and Corresponding Bis-Urethanes with Mesogenic Groups of Various Structures in Side Chains
  作者：M. Kašpar、V. Hamplová、V. Novotná、M. Studenovský、M. Ilavský

  DOI：10.1080/15421400390193954

  日期：2003.1.1

  The liquid-crystalline diols with mesogenic groups of different structures were synthetized and their temperature behavior and existence of mesophases were determined. These compounds were also reacted with phenylisocyanate to form bis-urethanes at the ratio of reactive groups [OH]/[NCO] = 1/1. The changes of phase transition temperatures due to the change of H-O-H to H-N-H interactions have been investigated. Generally, the introduction of a phenylurethane group into the molecule suppresses the occurence of mesophases; in the case of simple mesogens the mesophases disappear completely. Stiff substituents bound to mesogen as end groups (such as the phenyl group, alkoxy group, etc.) stabilize the mesophases to such a degree that the negative influence of urethane group is compensated and the LC properties are recovered.