4-羧基l苯基-4-五氧基苯甲酸 | 207497-09-4

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 缩酚酸和缩酚酸环醚类
• 中文名称: 4-羧基l苯基-4-五氧基苯甲酸
• 英文名称: 4-(4-pentyloxybenzoyloxy)benzoic acid
• 英文别名: 4-Carboxylphenyl-4'-pentoxybenzoate；4-(4-pentoxybenzoyl)oxybenzoic acid
• CAS: 207497-09-4
• 化学式: C₁₉H₂₀O₅
• 分子量: 328.365
• InChiKey: UQXRULRWDBURJD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.6
• 重原子数：
  24
• 可旋转键数：
  9
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.26
• 拓扑面积：
  72.8
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  4-羧基l苯基-4-五氧基苯甲酸 在 氯化亚砜 作用下， 生成 4-(4-pentyloxybenzoyloxy)benzoyl chloride
  参考文献：
  名称：

  Chiral Smectic *C Mesogens Having Ester and Amide Central Linkages

  摘要：

  Ten members of a chiral homologous series 4-(4'-n-alkoxy benzoyloxy benzoyl)4''- S- (+) 2-methyl butoxy anilides were synthesized in multiple step synthesis. Series exhibits chiral smectic *C and cholesteric mesophases. In this series, n-propyl to n-dodecyl derivatives exhibit smectic *C and cholesteric mesophases. n-Tetradecyl and n-hexadecyl derivatives exhibit only smectic *C phases. The plot of transition temperatures versus number of carbon atoms in alkoxy chain exhibits odd-even effect for cholestric-isotropic transition temperatures. The effect of amide linkage and chirality is discussed in detail. High-temperature cholestric phases exhibit vivid colors. Two compounds were analyzed by calorimetric study (C12 and C14) to confirm the transition temperatures of which was observed under polarizing microscope. The mesogenic behavior of the series compared with other series where amide central linkage differs in its position. The mesogenic thermal stability is compared with other related homologous series. The result indicates that amide linkage enhances smectic as well as cholesteric thermal stability but enhancement in smectic phase is much higher. Compounds are characterized by elemental analysis, IR spectral data, Mass spectral data, DSC, NMR, and microscopic study.

  DOI：

  10.1080/15421400801915027
• 作为产物：
  描述：

  4-n-戊基氧基苯甲酸甲酯 在 4-二甲氨基吡啶 、 N,N'-二环己基碳二亚胺 、 potassium hydroxide 作用下， 以 乙醇 、 二氯甲烷 为溶剂， 生成 4-羧基l苯基-4-五氧基苯甲酸
  参考文献：
  名称：

  New chalcone based liquid crystals with allylidene amino linking unit: Synthesis and characterization

  摘要：

  In this study, the synthesis, structural characterization and mesomorphic properties of newly thirteen calamitic shaped compounds derived from allylidene amino chalcone and 4-n-alkoxy benzoyloxy benzoic acid. Comp.H-1 to H-3 exhibited nonliquid crystalline nature, while comp.H-4 to comp.H-18 displayed enantiotropical smectic C phase. Phase transition temperatures of present synthesised compounds were determined by optical polarising microscopy (POM), differential scanning calorimetric (DSC) and powder X-ray diffraction (PXRD) techniques. Thermal stabilities of smectic to isotropic phase are 150.0 degrees C and temperature range of mesophase is in decreasing order from comp.H-3 to comp.H-18 respectively. The presences of SmC phase are the type of broken fan and needle type in present synthesized series. It is also shown that presence of chalcone amino allylidene central linking group favors a calamitic liquid crystalline behaviour in molecules with lower member to higher member aliphatic side chain in alkoxy group (-OR).

  DOI：

  10.1080/15421406.2018.1499697

文献信息

• New hockey stick shaped amino allylidene (‒N˭CH‒CH˭CH) based compounds: Effect of linkage group on mesomorphic properties
  作者：Vinay. S. Sharma、Rajesh. H. Vekariya、Anuj. S. Sharma、R. B. Patel

  DOI：10.1080/15421406.2017.1357430

  日期：2017.7.24

  GRAPHICAL ABSTRACT ABSTRACT Two nonlinear hockey stick shaped homologous series based on three linking groups have been synthesized and characterized by elemental analyses and spectroscopic techniques. The mesomorphic properties of these compounds were observed by polarizing optical microscopy (POM) and differential scanning calorimetry (DSC). In this present investigation, we have synthesized two

  图形摘要 摘要 基于三个连接基团的两个非线性曲棍球棒形同源系列已被合成并通过元素分析和光谱技术表征。通过偏光显微镜（POM）和差示扫描量热法（DSC）观察这些化合物的介晶性质。在本次调查中，我们合成了两个同源系列，即。2-((3-苯基亚丙基)氨基)苯基4-((4-n-烷氧基亚苄基)氨基)苯甲酸酯(series-1)和4-((2-((3-苯基亚丙基)氨基)苯氧基)羰基) 苯基-4-n-烷氧基苯甲酸酯（系列 2）。这两个系列在第一连接基团方面是不同的。在系列 1 中，comp.C4-C18 显示向列相和近晶相，而在系列 2 中，comp.C10-C16 显示近晶相和向列相，而 comp.C4-C18 仅显示向列相。
• Synthesis and mesomorphic properties of calamitic shaped molecules with chalconyl-ester and lateral fluoro substituents
  作者：Vinay S. Sharma、Anuj S. Sharma、Rajesh H. Vekariya、R. B. Patel

  DOI：10.1080/15421406.2017.1412580

  日期：2017.11.22

  GRAPHICAL ABSTRACT ABSTRACT In this study we have synthesized a new class of compounds incorporating of chalcones and laterally substituted fluoro group. A series of new chalcones with five aromatic rings is synthesized and characterised by elemental analyses and spectroscopic techniques such as Fourier transform infrared [FT-IR] and proton magnetic resonance magnetic resonance [1H NMR] spectroscopy

  图形摘要 在本研究中，我们合成了一类新的化合物，其中包含查耳酮和侧向取代的氟基团。合成了一系列具有五个芳环的新型查耳酮，并通过元素分析和光谱技术，如傅里叶变换红外 [FT-IR] 和质子磁共振磁共振 [1H NMR] 光谱进行表征。这些化合物的介晶性质通过光学偏光显微镜 (POM) 观察并通过差示扫描量热法 (DSC) 确认。发现除了本系列中的前三个同系物外，所有制备的材料都显示出对映性 LCs 相。较低的同系物（n = 4 至 12）显示 SmC 和向列相，而在较高的同系物（n = 14 至 18）中，仅在加热和冷却条件下看到 SmC 相。
• Mesomorphism Behavior of Two Series of Chiral Compounds with Semiperfluorocarbon Chains
  作者：Jie Li、Nan Zhao、Yi Li、Baozong Li、Yonggang Yang

  DOI：10.1080/15421406.2012.674466

  日期：2012.8.22

  Thermotropic liquid crystals with fluorocarbon chains have attracted much attention, because they are feasible to form smectic phases. Herein, two series of chiral compounds with semiperfluorocarbon chains were designed and synthesized. These compounds were characterized by IR, H-1 NMR, F-19 NMR, mass spectroscopy, and elemental analysis. Phase transition behavior was investigated by differential scanning calorimetry and polarized optical microscopy. Members of the two-ring series do not exhibit liquid crystalline phases. However, the three-ring analogues exhibit an enantiotropic SmA phase. When the length of alkyl chains is sufficient, an enantiotropic SmB phase is also identified.
• US4001137A
  申请人：——

  公开号：US4001137A

  公开（公告）日：1977-01-04
• US4002670A
  申请人：——

  公开号：US4002670A

  公开（公告）日：1977-01-11