4,5-dihexyl-1,2-dihydroxybenzene. | 162131-26-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: 4,5-dihexyl-1,2-dihydroxybenzene.
• 英文别名: 4,5-Dihexylbenzene-1,2-diol；4,5-dihexylbenzene-1,2-diol
• CAS: 162131-26-2
• 化学式: C₁₈H₃₀O₂
• 分子量: 278.435
• InChiKey: PEHVNYZJKSVFPO-UHFFFAOYSA-N

物化性质

• 沸点：
  417.0±40.0 °C(Predicted)
• 密度：
  0.980±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  7.1
• 重原子数：
  20
• 可旋转键数：
  10
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  4,5-dihexyl-1,2-dihydroxybenzene. 在 2,6-二甲基吡啶 、 1,1'-双(二苯基膦)二茂铁 、 bis(dibenzylideneacetone)-palladium⁽⁰⁾ 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 6.0h， 生成 4,5-bis(hexyl)phthalonitrile
  参考文献：
  名称：

  Synthesis and characterization of some octaalkyl substituted lead phthalocyanines and unexpected variations in lead lability arising from the position of substituents and their chain length

  摘要：

  本文介绍了一些外周取代（2,3,9,10,16,17,23,24）和非外周取代（1,4,8,11,15,18,22,25）、具有不同烷基链长度（6、7、8 或 9 个碳原子）的八烷基酞菁铅（II）的制备方法，并对它们的一些性质进行了比较。对同分异构的外周和非外周辛基酞菁族铅（II）化合物的 X 射线结构分析表明，前者衍生物中配体环系统的平面变形程度更大。外周取代的八烷基酞菁铅（II）系列表现出柱状液晶行为，而非外周取代的异构体则没有。在一组特定条件下（酞菁在含有 2.06 × 10-5 M d4-乙酸的 d8-甲苯中的 8.8 × 10-4 M 溶液），使用 1 H NMR 光谱法研究了铅离子的稳定性。所有化合物都在酸催化下发生了脱金属反应，脱金属的速度取决于取代基的位置，更令人惊讶的是取决于烷基的链长。在这些条件下，外周取代的八烷基酞菁铅中的铅离子比非外周取代的异构体中的铅离子更易变。

  DOI：

  10.1142/s108842461350020x
• 作为产物：
  描述：

  胡椒环 在 palladium on activated charcoal aluminum tri-bromide 、 氢溴酸 、 氢气 、 乙醇锂 、 溶剂黄146 、 乙硫醇 作用下， 以 甲醇 、 乙醇 、 氯仿 、 N,N-二甲基甲酰胺 为溶剂， 反应 83.0h， 生成 4,5-dihexyl-1,2-dihydroxybenzene.
  参考文献：
  名称：

  TOWARD BORONATE ESTER MESOGENIC STRUCTURES

  摘要：

  This article describes efforts toward the development of a new core for calamitic mesogens based upon the introduction of an extended heteroaromatic boron-containing ring. A series of tri-catenar mesogenic boronate ester derivatives of the 2-phenyl-1,3,2-benzodioxaborole has been synthesized and characterized. The flat central core appeared to be a suitable feature for these derivatives to support anisotropic alignment. Additionally, these derivatives should possess an inherent dipole in the core. However, thermal analysis (polarized optical microscopy and differential scanning calorimetry) did not reveal any mesophases.

  DOI：

  10.1080/15421400390223158

文献信息

• Highly substituted Schiff base macrocycles via hexasubstituted benzene: a convenient double Duff formylation of catechol derivatives
  作者：Kevin E. Shopsowitz、David Edwards、Amanda J. Gallant、Mark J. MacLachlan

  DOI：10.1016/j.tet.2009.07.094

  日期：2009.9

  The synthesis of soluble, shape-persistent macrocycles is important for developing new materials. Double Duff formylation of 4,5-dialkylcatechol derivatives yields 3,6-diformyl-4,5-dialkylcatechols in moderate yields. These hexasubstituted aromatics are useful precursors to highly substituted Schiff base macrocycles. We illustrate convenient routes to these compounds as well as structural studies of two new macrocycles with alkyl substituents. (C) 2009 Elsevier Ltd. All rights reserved.
• CN116041166
  申请人：——

  公开号：——

  公开（公告）日：——
• Synthesis and characterization of some octaalkyl substituted lead phthalocyanines and unexpected variations in lead lability arising from the position of substituents and their chain length
  作者：Lydia X. Sosa-Vargas、Isabelle Chambrier、Colin J. MacDonald、Simon J. Coles、Graham J. Tizzard、Andrew N. Cammidge、Michael J. Cook

  DOI：10.1142/s108842461350020x

  日期：2013.6

  The preparation of some peripherally substituted (2,3,9,10,16,17,23,24) and non-peripherally substituted (1,4,8,11,15,18,22,25) octaalkyl lead(II) phthalocyanines with different alkyl chain lengths (6, 7, 8 or 9 carbons) is described and a comparison of some of their properties reported. X-ray structure analyses of the isomeric peripheral and non-peripheral octakis(octyl)phthalocyaninato lead(II) compounds reveal a greater degree of distortion of the ligand ring system from planarity in the former derivative. The series of peripherally substituted octaalkyl lead(II) phthalocyanines exhibit columnar liquid crystal behavior whereas the non-peripherally substituted isomers do not. The lability of the lead ion was investigated using ¹ H NMR spectrometry under a specific set of conditions (8.8 × 10^-4 M solutions of the phthalocyanine in d₈-toluene containing d₄-acetic acid 2.06 × 10^-5 M). All the compounds underwent acid catalyzed demetalation at rates dependent upon the location of the substituents and, more surprisingly, the chain length of the alkyl groups. Under these conditions the lead ion within each of the peripherally substituted octaalkyl lead phthalocyanines was more labile than that in the non-peripherally substituted isomer.

  本文介绍了一些外周取代（2,3,9,10,16,17,23,24）和非外周取代（1,4,8,11,15,18,22,25）、具有不同烷基链长度（6、7、8 或 9 个碳原子）的八烷基酞菁铅（II）的制备方法，并对它们的一些性质进行了比较。对同分异构的外周和非外周辛基酞菁族铅（II）化合物的 X 射线结构分析表明，前者衍生物中配体环系统的平面变形程度更大。外周取代的八烷基酞菁铅（II）系列表现出柱状液晶行为，而非外周取代的异构体则没有。在一组特定条件下（酞菁在含有 2.06 × 10-5 M d4-乙酸的 d8-甲苯中的 8.8 × 10-4 M 溶液），使用 1 H NMR 光谱法研究了铅离子的稳定性。所有化合物都在酸催化下发生了脱金属反应，脱金属的速度取决于取代基的位置，更令人惊讶的是取决于烷基的链长。在这些条件下，外周取代的八烷基酞菁铅中的铅离子比非外周取代的异构体中的铅离子更易变。
• TOWARD BORONATE ESTER MESOGENIC STRUCTURES
  作者：Maura Belloni、M. Manickam、Zehn-He Wang、Jon A. Preece

  DOI：10.1080/15421400390223158

  日期：2003.1.1

  This article describes efforts toward the development of a new core for calamitic mesogens based upon the introduction of an extended heteroaromatic boron-containing ring. A series of tri-catenar mesogenic boronate ester derivatives of the 2-phenyl-1,3,2-benzodioxaborole has been synthesized and characterized. The flat central core appeared to be a suitable feature for these derivatives to support anisotropic alignment. Additionally, these derivatives should possess an inherent dipole in the core. However, thermal analysis (polarized optical microscopy and differential scanning calorimetry) did not reveal any mesophases.