4'-hydroxy-biphenyl-4-carboxylic acid (R)-1-methyl-heptyl ester | 121687-76-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 4'-hydroxy-biphenyl-4-carboxylic acid (R)-1-methyl-heptyl ester
• 英文别名: (R)-1-methylheptyl 4'-hydroxybiphenyl-4-carboxylate；(R)-1-methylheptyl 4-hydroxybiphenyl-4'-carboxylate；(R)-1-methylheptyl-4-hydroxybiphenyl-4'-carboxylate；[(2R)-octan-2-yl] 4-(4-hydroxyphenyl)benzoate
• CAS: 121687-76-1
• 化学式: C₂₁H₂₆O₃
• 分子量: 326.436
• InChiKey: GAQOTFJPZGEHAQ-MRXNPFEDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.4
• 重原子数：
  24
• 可旋转键数：
  9
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  4'-hydroxy-biphenyl-4-carboxylic acid (R)-1-methyl-heptyl ester 在 4-二甲氨基吡啶 、 盐酸-N-乙基-Nˊ-(3-二甲氨基丙基)碳二亚胺 作用下， 以 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 24.0h， 生成 [(2R)-octan-2-yl] 4-[4-[4-[3-(2,2,3,3,4,4,5,5,6,6,7,7,8,8,9,9-hexadecafluorononanoyloxy)propoxy]benzoyl]oxyphenyl]benzoate
  参考文献：
  名称：

  Examination of the interlayer strength of smectic liquid crystals through the study of partially fluorinated and branched fluorinated end-groups

  摘要：

  通过在铁电液晶中引入部分氟化和支化氟化末端基团，我们的目标是研究对基于MHPOBC骨架的一类化合物的物理化学结构、性质以及电场切换行为的影响。我们表明，末端基团的性质强烈影响液晶行为以及与电光切换相关的阈值。在这篇文章中，我们展示了系列化合物的合成、转变温度、电光测量以及X射线衍射研究。

  DOI：

  10.1039/b517913k
• 作为产物：
  描述：

  氰基联苯酚 在 sodium hydroxide 、 硫酸 、 氨 、 溶剂黄146 、 三苯基膦 、 偶氮二甲酸二乙酯 作用下， 以 四氢呋喃 、 乙醇 为溶剂， 生成 4'-hydroxy-biphenyl-4-carboxylic acid (R)-1-methyl-heptyl ester
  参考文献：
  名称：

  V-Shaped switching and interlayer interactions in ferroelectric liquid crystals

  摘要：

  铁电液晶中的线性电光响应可以通过无阈值开关实现。迄今为止，尚未明确能够产生无阈值响应的铁电液晶的分子设计参数。在本文中，我们探讨了在控制开关过程中可能利用的一些化学设计特征，并建立了性质与结构的相关性，以实现展现无阈值行为的材料。

  DOI：

  10.1039/b612065m

文献信息

• [EN] 3-AMINOCYCLOPENTANE CARBOXAMIDE DERIVATIVES<br/>[FR] DÉRIVÉS DE 3-AMINOCYCLOPENTANE CARBOXAMIDE
  申请人：MERCK PATENT GMBH

  公开号：WO2014075754A1

  公开（公告）日：2014-05-22

  Compounds of the formula (I) in which R1, R4, R, X1, X2, X3, X4, q and W have the meanings indicated in Claim 1, are inhibitors of fatty acid synthase, and can be employed, inter alia, for the treatment of diseases such as cancer, cardiovascular diseases, central nervous system injury and different forms of inflammation.

  式（I）中R1、R4、R、X1、X2、X3、X4、q和W的含义如权利要求1所示，是脂肪酸合成酶的抑制剂，可用于治疗癌症、心血管疾病、中枢神经系统损伤和不同形式的炎症等疾病。
• Host–guest effect on chirality transfer from a binaphthyl derivative to a host nematic liquid crystal
  作者：Atsushi Yoshizawa、Keiko Kobayashi、Masatada Sato

  DOI：10.1039/b611538a

  日期：——

  A novel dichiral compound possessing both an asymmetric axis and a chiral centre induces opposite twist senses and distinct helical pitches in different host nematic liquid crystals; the host–guest effect on chirality transfer is discussed in terms of molecular recognition.

  一种新型二手性化合物同时具有不对称轴和手性中心，可在不同的主向列液晶中产生相反的扭曲感和不同的螺旋间距；从分子识别的角度讨论了主客体对手性转移的影响。
• A blue phase observed for a novel chiral compound possessing molecular biaxiality
  作者：Atsushi Yoshizawa、Masatada Sato、Juri Rokunohe

  DOI：10.1039/b506167a

  日期：——

  Novel chiral compounds possessing molecular biaxiality, T-shaped and bend-shaped compounds, have been prepared and the physical properties investigated. The T-shaped chiral compound was found to show a blue phase with a wide temperature range on cooling. A double twist structure formed by the T-shaped compound can stabilize the blue phase. Furthermore, the compound induced a twist grain boundary phase in the binary mixture with its corresponding monomeric compound.

  我们制备了具有分子双轴性的新型手性化合物--T 型和弯曲型化合物，并对其物理性质进行了研究。研究发现，T 型手性化合物在冷却时会出现一个温度范围很宽的蓝相。T 形化合物形成的双扭曲结构可以稳定蓝相。此外，该化合物在与其相应单体化合物的二元混合物中诱导出扭曲晶界相。
• Novel non-symmetric chiral twin liquid crystals possessing two identical chiral moieties at both peripheral ends: highly chirality-sensitive phases appeared between smectic and isotropic liquid phases
  作者：Isa Nishiyama、Jun Yamamoto、John W. Goodby、Hiroshi Yokoyama

  DOI：10.1039/b201061e

  日期：2002.5.22

  A novel strategy for preparing non-symmetric chiral twin liquid crystals was proposed, where two identical chiral moieties were designed to be located at both peripheral ends and the non-symmetric character was introduced by the non-symmetric central connecting structure. Thus, optically active chiral non-symmetric twin homologues, [4′-(1-methylheptyloxycarbonyl)-1,1′-biphenyl-4-yl] 4″″-[ω-[4″-(1-methylheptyloxycarbonyl)-1″,1″′-biphenyl-4″′-yl}oxycarbonyl]alkyloxy]benzoate, were prepared, which were found to exhibit the antiferro-, ferri-, and ferroelectric phases. Furthermore, two more phases were observed between the ferroelectric and isotropic liquid phases. The lower-temperature phase was optically isotropic under the polarized light microscopy for both of the homogeneously and pseudo-homeotropically aligned thin samples, whereas the high-temperature phase showed a mosaic texture. Both of these anomalous phases were found to have a layered structure with a smaller layer spacing than the smectic phase. The stability of these phases was quite sensitive to the optical activity. With reduction of the optical purity, these phases disappeared but the Twist Grain Boundary phase was observed. A 1 ∶ 1 mixture of (S,S)- and (R,R)-isomers just showed the smectic A phase instead of these anomalous phases.

  提出了一种制备非对称手性孪晶液晶的新策略，即把两个相同的手性分子设计在外围两端，通过非对称的中心连接结构引入非对称特性。因此，光学活性手性非对称孪晶同系物[4′-（1-甲基庚氧羰基）-1,1′-联苯-4-基] 4″″-[ω-[4″-(1- 甲基庚氧羰基)-1″、1″′-联苯-4″′-基}氧羰基]烷氧基]苯甲酸酯，发现它们呈现出反铁电性、铁电性和铁电性。此外，在铁电相和各向同性液相之间还观察到另外两种相。在偏振光显微镜下，低温相在均匀排列和假各向同性排列的薄样品中均呈光学各向同性，而高温相则呈现马赛克纹理。这两种反常相都具有层状结构，层间距小于平滑相。这些相的稳定性对光学活性相当敏感。随着光学纯度的降低，这些相消失了，但却观察到了扭曲晶界相。(S,S)- 和 (R,R)- 异构体的 1 ∶ 1 混合物只显示出光滑 A 相，而不是这些异常相。
• Ferroelectric cyclic oligosiloxane liquid crystals
  作者：David R. Medeiros、Michael A. Hale、Raymond J. P. Hung、Jeffrey K. Leitko、C. Grant Willson

  DOI：10.1039/a809842e

  日期：——

  Chiral, smectogenic pendant groups have been covalently attached to cyclic oligosiloxanes by hydrosilylation. These materials and the olefinic compounds from which they were derived exhibit ferroelectric behavior. The mesomorphic range, and in particular the S C * phase, of these oligomers is greatly enhanced relative to the vinylogous parents. The electro-optic and thermal properties, in addition to the synthetic procedures used to prepare these materials, are described in detail. These compounds are seen as potential precursors to liquid crystalline polymers with desirable processing capabilities.

  手性、致密侧基已通过氢化硅烷化共价连接到环状低聚硅氧烷上。这些材料和衍生它们的烯烃化合物表现出铁电行为。介晶范围，特别是 S C 这些低聚物的*相相对于插烯亲本大大增强。除了用于制备这些材料的合成程序之外，还详细描述了电光和热性能。这些化合物被视为具有理想加工能力的液晶聚合物的潜在前体。