Octyl glucoside | 4742-80-7

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: Octyl glucoside
• 英文别名: 2-(hydroxymethyl)-6-octoxyoxane-3,4,5-triol
• CAS: 4742-80-7；41444-50-2
• 化学式: C₁₄H₂₈O₆
• 分子量: 292.37
• InChiKey: HEGSGKPQLMEBJL-UHFFFAOYSA-N

物化性质

• 沸点：
  454.1±45.0 °C(Predicted)
• 密度：
  1.18±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  20
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  99.4
• 氢给体数：
  4
• 氢受体数：
  6

文献信息

• ONE-POT SYNTHESIS OF ALPHA/BETA-O-GLYCOLIPIDS
  申请人：Gervay-Hague Jacquelyn

  公开号：US20110251378A1

  公开（公告）日：2011-10-13

  The present invention provides a one-pot method of preparing an unprotected α-O-glycolipid. The first step involves contacting a protected α-iodo sugar with a catalyst and a lipid comprising a hydroxy group, under conditions sufficient to prepare a protected α-O-glycolipid. The second step involves deprotecting the protected α-O-glycolipid under conditions sufficient to prepare the unprotected α-O-glycolipid, wherein the contacting and deprotecting steps are performed in a single vessel. The present invention also provides a one-pot method of preparing an unprotected β-O-glycolipid following the steps for the preparation of the unprotected α-O-glycolipid.

  本发明提供了一种制备未保护的α-O-糖脂的一锅法。第一步涉及将受保护的α-碘糖与催化剂和含有羟基的脂质接触，在足够条件下制备受保护的α-O-糖脂。第二步涉及在足够条件下去保护受保护的α-O-糖脂，从而制备未保护的α-O-糖脂，其中接触和去保护步骤在单个容器中执行。本发明还提供了一种制备未保护的β-O-糖脂的一锅法，其遵循制备未保护的α-O-糖脂的步骤。
• ONE-POT SYNTHESIS OF ALPHA/BETA-O-CLYCOLIPIDS
  申请人：The Regents of the University of California

  公开号：US20140221633A1

  公开（公告）日：2014-08-07

  The present invention provides a one-pot method of preparing an unprotected α-O-glycolipid. The first step involves contacting a protected α-iodo sugar with a catalyst and a lipid comprising a hydroxy group, under conditions sufficient to prepare a protected α-O-glycolipid. The second step involves deprotecting the protected α-O-glycolipid under conditions sufficient to prepare the unprotected α-O-glycolipid, wherein the contacting and deprotecting steps are performed in a single vessel. The present invention also provides a one-pot method of preparing an unprotected β-O-glycolipid following the steps for the preparation of the unprotected α-O-glycolipid.

  本发明提供了一种制备未保护的α-O-糖脂的一锅法。第一步涉及将受保护的α-碘糖与催化剂和含有羟基的脂质接触，在足够的条件下制备受保护的α-O-糖脂。第二步涉及在足够的条件下去除受保护的α-O-糖脂的保护基，制备未保护的α-O-糖脂，其中接触和去保护步骤在单个容器中进行。本发明还提供了一种制备未保护的β-O-糖脂的一锅法，遵循制备未保护的α-O-糖脂的步骤。
• LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY ELEMENT
  申请人：JNC Corporation

  公开号：EP3275973A1

  公开（公告）日：2018-01-31

  Subject The subject is to provide a liquid crystal composition that includes a polymerizable compound (or polymer) and a polar compound, where the homeotropic alignment of liquid crystal molecules can be achieved by the action of these compounds, and a liquid crystal display device including this composition. This composition satisfies at least one of characteristics such as a high maximum temperature, a low minimum temperature, a small viscosity, a suitable optical anisotropy, a large positive dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light or heat or a large elastic constant, or is suitably balanced regarding at least two of the characteristics. The means concerns a nematic liquid crystal composition that has positive dielectric anisotropy and that includes a polymerizable compound as an first additive and a polar compound as a second additive, and the composition may include a specific liquid crystal compound having a large positive dielectric anisotropy and a specific liquid crystal compound having a high maximum temperature or a small viscosity, and concerns a liquid crystal display device including the composition.

  主题 本课题旨在提供一种液晶组合物，其中包括一种可聚合化合物（或聚合物）和一种极性化合物，通过这些化合物的作用可实现液晶分子的各向同性排列，并提供一种包括这种组合物的液晶显示装置。这种组合物至少满足以下一种特性，如最高温度高、最低温度低、粘度小、光学各向异性合适、正介电各向异性大、比电阻大、对紫外线或热的稳定性高或弹性常数大，或至少在其中两种特性方面适当平衡。 该手段涉及一种具有正介电常数的向列液晶组合物，该组合物包括作为第一添加剂的可聚合化合物和作为第二添加剂的极性化合物，该组合物可包括具有较大正介电常数的特定液晶化合物和具有较高最高温度或较小粘度的特定液晶化合物，还涉及一种包括该组合物的液晶显示设备。
• Liquid crystal composition and liquid crystal display device
  申请人：JNC CORPORATION

  公开号：US10479940B2

  公开（公告）日：2019-11-19

  A liquid crystal compound having positive dielectric anisotropy is provided and contains a compound represented by formula (1) as a first component, a compound represented by formula (2) as a second component, a polar compound as a first additive and a polymerizable compound as a second additive. In formula (1), R1a is alkyl having 1 to 12 carbons, or the like; ring Q and ring S are independently 1,4-cyclohexylene, 1,4-phenylene or the like; Z1a and Z2a are independently a single bond or the like; X1a and X2a are independently hydrogen or fluorine; Y1a is fluorine, chlorine, alkyl having 1 to 12 carbons in which at least one hydrogen is replaced by fluorine or chlorine, or the like; q is 1, 2, 3 or 4; s is 0, 1, 2 or 3; and a sum of q and s is 4 or less.

  提供了一种具有正介电常数各向异性的液晶化合物，它包含作为第一组分的式 (1) 所代表的化合物、作为第二组分的式 (2) 所代表的化合物、作为第一添加剂的极性化合物和作为第二添加剂的可聚合化合物。 在式 (1) 中，R1a 是具有 1 至 12 个碳原子的烷基或类似物；环 Q 和环 S 独立地为 1，4-环己烯、1，4-亚苯基或类似物；Z1a 和 Z2a 独立地为单键或类似物；X1a 和 X2a 独立地为氢或氟；Y1a 是氟、氯、具有 1 至 12 个碳原子的烷基（其中至少有一个氢原子被氟或氯取代）或类似物；q 是 1、2、3 或 4；s 是 0、1、2 或 3；q 和 s 的总和是 4 或更少。
• Chromatographic Purification Of Polynucleotides With Negatively Charged Particles
  申请人：Agency for Science, Technology and Research

  公开号：EP2854982A1

  公开（公告）日：2015-04-08