2,3,4-trioctyloxybenzaldehyde | 135566-61-9

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: 2,3,4-trioctyloxybenzaldehyde
• CAS: 135566-61-9
• 化学式: C₃₁H₅₄O₄
• 分子量: 490.767
• InChiKey: BTWBWLQKJFMRCK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  9.72
• 重原子数：
  35.0
• 可旋转键数：
  25.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.77
• 拓扑面积：
  44.76
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  2,3,4-trioctyloxybenzaldehyde 在 钯 氢气 作用下， 生成 3-(2,3,4-Tris-octyloxy-phenyl)-propionic acid
  参考文献：
  名称：

  Praefcke, K.; Kohne, B.; Guendogan, B., Molecular Crystals and Liquid Crystals (1969-1991), 1991, vol. 198, p. 393 - 405

  摘要：

  DOI：
• 作为产物：
  描述：

  邻苯三酚 生成 2,3,4-trioctyloxybenzaldehyde
  参考文献：
  名称：

  Praefcke, K.; Kohne, B.; Guendogan, B., Molecular Crystals and Liquid Crystals (1969-1991), 1991, vol. 198, p. 393 - 405

  摘要：

  DOI：

文献信息

• Tuning the thermotropic properties of liquid crystalline p-substituted aroylhydrazones
  作者：Hemant Kumar Singh、Sachin Kumar Singh、Rajib Nandi、Madan Kumar Singh、Vijay Kumar、Ranjan K. Singh、D. S. Shankar Rao、S. Krishna Prasad、Bachcha Singh

  DOI：10.1039/c5ra06620d

  日期：——

  Lamellar smectic A to columnar mesophase crossover is observed in p-substituted aroylhydrazones by variation of the alkoxy chain density at peripherals.

  通过改变周边烷氧链密度，在p-取代芳酰肼中观察到片层烟酸A到柱状介晶相的交叉。
• Photoluminescent discotic liquid crystals derived from tris( N -salicylideneaniline) and stilbene conjugates: Structure–property correlations
  作者：Ammathnadu S. Achalkumar、B.N. Veerabhadraswamy、Uma S. Hiremath、Doddamane S. Shankar Rao、Subbarao Krishna Prasad、Channabasaveshwar V. Yelamaggad

  DOI：10.1016/j.dyepig.2016.05.010

  日期：2016.9

  Luminescent discotic liquid crystals based on tris(N-salicylideneaniline)s [TSANs] bearing trans-stilbene fluorophores have been synthesized. Their mesomorphic and photophysical properties were studied. These TSANs existing in the form of C3h and Cs geometrical isomers of the keto-enamine tautomer self-assemble to form the columnar phase and exhibit fluorescence both in solution and mesophase states

  合成了基于带有反式二苯乙烯荧光团的三（N-水杨基苯胺）[TSANs]的发光盘状液晶。研究了它们的介晶和光物理性质。这些TSAN以C 3h和C s的形式存在酮-烯胺互变异构体的几何异构体自组装形成柱状相，并在溶液和中间相状态下均显示荧光。这些柱状中间相还表现出冻结的（玻璃态）柱状相，可确保保留荧光强度，无缺陷排列并同时限制离子杂质的运动。这些特征使其成为有机发光二极管中的有希望的候选者，特别是用作发光层。与早先报道的类似柱状液晶TSAN相比，该研究还导致了对它们的同晶型（中间相类型，稳定性和热范围）和光物理特征对其外围取代的数量和模式的依赖性的理解。
• Effect of regioisomerism on the self-assembly, photophysical and gelation behavior of aroylhydrazone based polycatenars: Synthesis and characterization
  作者：Priyanka Kanth、Hemant Kumar Singh、Vijay Kumar、Sachin Kumar Singh、D.S. Shankar Rao、S. Krishna Prasad、Bachcha Singh

  DOI：10.1016/j.molliq.2019.111133

  日期：2019.9

  show columnar rectangular mesophase resulting from the effect of regioisomerism. Moving on to the series with three alkoxy chains, it was observed that 2-, 3-, 4-trialkoxy substituted compounds exhibit columnar rectangular mesophase except lower chain length (n = 6 & 8) while 3-, 4-, 5-trialkoxy substituted aroylhydrazones show columnar rectangular mesophase; except n = 10 which shows columnar oblique

  在本文中，我们报告了五种基于芳酰hydr的聚类别，它们在核心一端的烷氧基链的数量和位置互不相同。保持另一端不变。进行了系统的结构变化，以了解位置和链长对中间相行为的影响。在4位单烷氧基链的情况下，除n = 6和n = 8外，所有同系物在冷却过程中均会从近晶C转变为近晶A中间相，并且在加热循环中会发生近晶A到近晶C的转变。在3-，5-位有两个烷氧基链的情况下，该化合物本质上是非介晶的。在将烷氧基链的位置从3位，5位更改为3位，4位时，分子间作用力减弱，这些化合物变成液晶，并显示出矩形的中间相，这是由于区域异构现象的影响所致。继续到具有三个烷氧基链的系列，观察到2-，3-，4-三烷氧基取代的化合物除了较低的链长（n = 6和8），而具有3-，4-，5-三烷氧基以外，均呈柱状矩形中间相。取代的芳酰基hydr显示柱状矩形中间相；除了n = 10表示柱状斜中间相。因此，可以确定的是，随着一个末端周围
• 一类具有不同疏水链的水溶性BODIPY衍生物及制备方法
  申请人：天津大学

  公开号：CN105753892A

  公开（公告）日：2016-07-13

  本发明涉及一类两亲性氟硼二吡咯荧光染料BODIPY衍生物的合成方法。通过分子设计，利用格氏反应、季铵化反应制备一系列具备不同疏水链的BODIPY衍生物。1,3,5,7?四甲基BODIPY衍生物在8位接入不同数目、位置和种类的疏水链可以调控BODIPY性质；同时通过格氏反应在4位引入亲水链，增加其水溶性该发明合成的季铵盐型BODIPY水溶性普遍较高，对于BODIPY的生物性研究很有意义；不同疏水链的BODIPY的合成，可以为研究BODIPY自组装行为，以及调控其组装行为提供有效的合成方法保障。本发明的合成方法比较简单，便于操作；反应条件比较温和，易于进行；收率较高；使用范围比较广泛。
• Room temperature helical fluids in single-component systems
  作者：G. Shanker、A. Bindushree、K. Chaithra、P. Pratap、Ravindra Kumar Gupta、A.S. Achalkumar、C.V. Yelamaggad

  DOI：10.1016/j.molliq.2018.11.081

  日期：2019.2

  Technologically significant chiral nematic (N*) phase is a helicoidal superstructure, that is generally formed by the spontaneous self-assembly of entire chiral mesogens (mostly calamitics) or by the LC mixtures where a chiral dopant is being added to the host nematic (N) phase. However, the stabilization of the N* phase at room temperature solely by chiral mesogens is highly challenging where the molecular designing is rather crucial, and thus scarcely reported. Working in this direction, we have rationally designed, synthesized and characterized new chiral materials namely, non-symmetric dimers derived from cholesterol. Notably, as expected, some of these dimers exhibit room temperature N* phase over a wide thermal range. The exclusive occurrence of N* phase has been evidenced unequivocally with the help of polarized optical microscopy (POM) and differential scanning calorimeter (DSC). The chiroptical property of the phase has been studied by recording circular dichroism (CD) spectra as a function of temperature where the intense bisignate bands (change of sign within the band) were observed. Notably, one of the dimers forms stable gel in an aprotic solvent such as hexadecane. Thus, our study reveals a new molecular architecture to stabilize the technologically important N* phase at ambient temperature. (C) 2018 Elsevier B.V. All rights reserved.