4-(4-pentylphenylazo)phenol | 33228-48-7

• 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: 4-(4-pentylphenylazo)phenol
• 英文别名: p-n-Pentyl-p'-hydroxy-azobenzol；4-[2-(4-Pentylphenyl)hydrazinylidene]cyclohexa-2,5-dien-1-one；4-[(4-pentylphenyl)diazenyl]phenol
• CAS: 33228-48-7
• 化学式: C₁₇H₂₀N₂O
• 分子量: 268.359
• InChiKey: ZFROFGNNQXLYTG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.8
• 重原子数：
  20
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  45
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  4-(4-pentylphenylazo)phenol 在 potassium carbonate 作用下， 以 丁酮 为溶剂， 反应 72.0h， 生成 3,5-bis[6-(4-(4-pentylphenylazo)phenoxy)hexyloxy]benzoic acid ethyl ester
  参考文献：
  名称：

  다양한 자극에 의해 색깔 조절이 가능한 반응성 카이랄 염료 화합물, 이의 제조방법 및 이를 포함하는 발색소자

  摘要：

  本发明涉及一种具有结构互补性的液晶分子，增加了化合物的溶解度的反应性手性染料化合物及其制备方法。根据本发明，由于其优异的溶解度，反应性手性染料化合物可以分散在商业化的向列相液晶中，并且不会发生凝聚现象，因此可以用作液晶染料和制造胆固醇反射膜的添加剂。本发明的反应性手性染料化合物能够在光、热和电场激励条件下可逆地控制胆固醇薄膜的反射颜色，因此可以用于车辆智能窗户或军事伪装保护膜。

  公开号：

  KR20170044932A
• 作为产物：
  描述：

  苯戊酮 在 盐酸 、 aluminum (III) chloride 、 乙酰氯 、 肼 、 sodium nitrite 作用下， 以 水 为溶剂， 反应 1.5h， 生成 4-(4-pentylphenylazo)phenol
  参考文献：
  名称：

  Liquid-Crystalline Polymorphism of Symmetrical Azobananas: bis(4-(4-alkylphenyl)azophenyl) 2-nitroisophtalates

  摘要：

  In this paper we present a series of novel compounds, bis(4-(4-alkylphenyl)azophenyl) 2-nitroisophtalates, which exhibit nematic and banana-type liquid-crystalline phases. The alkyl chain length varies from 1 to 18 carbons. The first ten members of this series exhibit nematic phase. The last eleven compounds exhibit banana-type liquid crystalline phases. The propyl and pentyl derivatives have extra second type of banana mesophase.

  DOI：

  10.1080/15421400903065754

文献信息

• Photo-crosslinkable liquid-crystalline azo-polymer for surface relief gratings and persistent fixation
  作者：Wenhan Li、Shusaku Nagano、Takahiro Seki

  DOI：10.1039/b900146h

  日期：——

  Highly efficient migration has been observed for soft liquid-crystalline azobenzene-containing polymer films to form surface relief gratings (SRGs). The efficient migration is probably driven by the interfacial instability at boundaries between the smectic liquid-crystalline phase and photo-induced isotropic one. However, this migration system suffers from long-term and heat stability. This work proposes a new post-fixation method by utilizing the [2 + 2] photo-dimerization reaction of a cinnamoyl unit introduced into the polymer. The polymer synthesis, the properties of SRG formation, and drastic improvement of the stability towards heating and solvent exposure are described.

  高效迁移现象已被观察到，即含偶氮苯的软液晶聚合物薄膜通过形成表面浮雕光栅（SRG）。这种高效迁移很可能是由向列相液晶相与光诱导各向同性相之间的界面不稳定性驱动的。然而，这种迁移系统存在长期和热稳定性问题。本工作提出了一种新的后固定方法，通过利用引入聚合物中的肉桂酰单元的[2 + 2]光二聚反应。描述了聚合物合成、SRG形成特性以及对加热和溶剂暴露的稳定性的显著改善。
• COMPOUND, CURED PRODUCT, POLYMER, PHOTO-ALIGNMENT FILM, OPTICALLY ANISOTROPIC BODY AND LIQUID CRYSTAL DISPLAY ELEMENT
  申请人：DIC Corporation

  公开号：US20180230385A1

  公开（公告）日：2018-08-16

  A compound and a polymer which can each form a photo-alignment film having excellent ability of controlling alignment, a photo-alignment film obtained using the polymer and an optically anisotropic body and a liquid crystal display element each having the photo-alignment film are provided. A compound represented by the general formula (1). In the formula, P represents a polymerizable group, Z and Z 1 represent divalent linking groups, A and A 1 represent divalent cyclic groups, and X 1 to X 5 each independently represent a hydrogen atom, a fluorine atom, a chlorine atom, a hydroxy group, a nitro group, a cyano group or an alkyl group having 1 to 40 carbon atoms which may have a substituent, provided that X 1 , X 2 , X 4 and X 5 are not simultaneously hydrogen atoms.

  提供了一种可以形成具有优异控制取向能力的光对齐膜的化合物和聚合物，以及使用该聚合物获得的光对齐膜，以及具有该光对齐膜的光学各向异性体和液晶显示元件。公式（1）表示的一种化合物。在该公式中，P代表可聚合基团，Z和Z1代表二价连接基团，A和A1代表二价环状基团，X1至X5分别独立表示氢原子、氟原子、氯原子、羟基、硝基、氰基或具有1至40个碳原子的可能具有取代基的烷基基团，但要求X1、X2、X4和X5不同时为氢原子。
• Multi-responsible chameleon molecule with chiral naphthyl and azobenzene moieties
  作者：Dae-Yoon Kim、Sang-A Lee、Minwook Park、Yu-Jin Choi、Shin-Woong Kang、Kwang-Un Jeong

  DOI：10.1039/c5sm00073d

  日期：——

  A newly synthesized multi-responsible chameleon molecule with chiral naphthyl and azobenzene moieties was successfully applied as a reversible modulating device responding to temperature, electric field and light.

  一种新合成的多响应变色龙分子，具有手性萘基和偶氮苯基团，成功应用为可逆调节器件，对温度、电场和光线作出响应。
• Hierarchical organisation in shape-amphiphilic liquid crystals
  作者：Paul H. J. Kouwer、Georg H. Mehl

  DOI：10.1039/b819877b

  日期：——

  Shape-amphiphilic liquid crystals offer a route towards complex assemblies at the difficult 10 nanometer length scale. We present the preparation and mesomorphic characterisation of three novel shape amphiphiles based on azobenzenes. Their mesophases range from a simple nematic to complex lamellar phases of alternating layers of discotic and calamitic mesogens. In all smectic phases, the discotic and calamitic moieties are nanophase separated. As the different sub-layers start to tilt and/or display in-layer order independently, the mesophase assignment becomes more complex. Using temperature dependent X-ray diffraction we studied their characteristics.

  形状双亲液晶为实现 10 纳米长度尺度的复杂组装提供了一条途径。我们介绍了基于偶氮苯的三种新型形状双亲化合物的制备和介形特征。它们的中间相从简单的向列相到由盘状和菖蒲状中间体交替层组成的复杂层状相不等。在所有涂抹相中，盘状介质和菖蒲介质都是纳米相分离的。随着不同子层开始独立倾斜和/或显示层内秩序，介相分配变得更加复杂。我们利用随温度变化的 X 射线衍射研究了它们的特征。
• 4-[2-(Trimethylsilyl)ethynyl]benzoates: Synthesis and evaluation for mesomorphic properties of some novel calamitic molecules
  作者：H.T. Srinivasa、S. HariPrasad

  DOI：10.1016/j.jorganchem.2014.09.037

  日期：2014.12

  A series of novel terminal trimethylsilylacetylene benzoate derivatives with various linking groups were synthesized using Friedel-Craft's O-acylation reaction. The chemical structures of the novel 4-[2-(trimethylsilyl) ethynyl]benzoates were confirmed by standard spectroscopic techniques. The compounds were investigated for their liquid crystalline properties employing polarised optical microscopy and differential scanning calorimetry. The esters 5c - 5f, 5h and 5n possessing three phenyl rings exhibited liquid crystalline property of SmA/SmC phases with wide thermal range. (C) 2014 Elsevier B.V. All rights reserved.