十八烷基水杨酸酯 | 14971-14-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 十八烷基水杨酸酯
• 中文别名: 水杨基酸十八烷酯
• 英文名称: octadecyl 2-hydroxybenzoate
• 英文别名: Octadecylsalicylat；salicylic acid octadecyl ester；Salicylsaeure-octadecylester；Octadecyl salicylate
• CAS: 14971-14-3
• 化学式: C₂₅H₄₂O₃
• 分子量: 390.607
• InChiKey: OZAVCEALUDNEKN-UHFFFAOYSA-N

物化性质

• LogP：
  11.184 (est)

计算性质

• 辛醇/水分配系数(LogP)：
  12.2
• 重原子数：
  28
• 可旋转键数：
  19
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.72
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

安全信息

• 海关编码：
  2918230000

反应信息

• 作为反应物：
  描述：

  十八烷基水杨酸酯 生成 2-hydroxy-3,5-dinitro-benzoic acid octadecyl ester
  参考文献：
  名称：

  一些高级烷基水杨酸酯。

  摘要：

  DOI：

  10.1021/ja01228a068
• 作为产物：
  描述：

  硬脂醇 、 水杨酸乙酯 在 iron(III)-acetylacetonate 作用下， 以 正庚烷 为溶剂， 反应 35.0h， 以94%的产率得到十八烷基水杨酸酯
  参考文献：
  名称：

  Transesterification catalyzed by iron(III) β-diketonate species

  摘要：

  A practical and clean protocol for transesterification catalyzed by a 5 mol % cheap, non-toxic and moisture stable Fe(acac)(3) or other iron(III) beta-diketonate species in solvent, such as heptane under azeotropic condition is developed. A remarkable rate enhancement was observed upon the addition of 5 mol % of an inorganic base, such as Na2CO3, which suggests that faster formation of a dimeric mu-alkoxy-bridged iron (III) species under alkaline conditions facilitates catalytic turnover. This system provides smooth transesterification over a wide range of structurally diverse esters and alcohols without disturbing functional groups. In addition, the use of iron beta-diketonate complexes as catalysts is more environmentally friendly, safer, and economical than other transition-metal catalysts. Preliminary mechanistic studies indicate that the active catalyst is likely a dimeric mu-alkoxy-bridged iron(III) species, as determined by X-ray crystallography of [Fe(dbm)(2)(O-n-Bu)](2) derived from the alcoholysis of Fe(dbm)(3) under alkaline conditions. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2011.01.009

文献信息

• Formulations Containing Insect Repellent Compounds
  申请人：Scialdone Mark A.

  公开号：US20140288167A1

  公开（公告）日：2014-09-25

  Dihydronepetalactone, a minor natural constituent of the essential oil of catmints ( Nepeta spp.) such as Nepeta cataria , has been identified as an effective insect repellent compound. Synthesis of dihydronepetalactone may be achieved by hydrogenation of nepetalactone, the major constituent of catmint essential oils. This compound, and compositions thereof, which also has fragrance properties, may be used commercially for its insect repellent properties.

  二水合薄荷内酯是猫薄荷(Nepeta spp.)精油中的一种次要成分，如猫草(Nepeta cataria)。已确定其为有效的驱虫化合物。可以通过对猫薄荷精油的主要成分薄荷内酯进行氢化来合成二水合薄荷内酯。这种化合物及其组合物也具有香味特性，可以商业上用于其驱虫特性。
• Polycarbonate resin composition for radiation sterilization
  申请人：MITSUBISHI GAS CHEMICAL COMPANY, INC.

  公开号：EP0376289A2

  公开（公告）日：1990-07-04

  A polycarbonate resin composition for radiation sterilization, comprising an aromatic polycarbonate resin having structural units derived from a halogenated bisphenol, and a polyalkylene compound selected from poly(alkylene glycol), its ether, silyl ether or ester. Molded articles produced from the composition do not substantially undergo yellowing when exposed to radiation in air or under substantially oxygen-free atmosphere, and can be advantageously employed in medical appliances.

  一种用于辐射灭菌的聚碳酸酯树脂组合物，由芳香族聚碳酸酯树脂（其结构单元来自卤代双苯酚）和聚亚烷基化合物（选自聚（亚烷基二醇）、其醚、硅烷基醚或酯）组成。由该组合物制成的模制件在空气中或基本无氧的环境中暴露于辐射时基本上不会变黄，因此可以很好地应用于医疗器械中。
• Optical disk substrate, optical disk and aromatic polycarbonate resin
  申请人：Teijin Chemicals, Ltd.

  公开号：EP0691361A2

  公开（公告）日：1996-01-10

  An optical disk substrate formed substantially of an aromatic polycarbonate from an aromatic dihydroxy component containing at least 20 mol% of 1,1-bis(4-hydroxyphenyl)-3,3,5-trimethylcyclohexane, wherein: (A) the aromatic polycarbonate has a specific viscosity of 0.2 to 0.5, (B) the aromatic polycarbonate shows a water absorption percentage of 0.2 % by weight or less, (C) the aromatic polycarbonate has an oligomer content of 10 % or less, and (D) the number of undissolved particles having a diameter of 0.5 µm or greater is 25,000 pieces or less per g of the polycarbonate resin, and the number of undissolved particles having a diameter of 1 µm or greater is 500 pieces or less per g of the polycarbonate resin, and an optical disk from the above substrate.

  一种光盘基板，主要由芳香族聚碳酸酯构成，该芳香族聚碳酸酯来自芳香族二羟基成分，其中至少含有 20 摩尔%的 1,1-双(4-羟基苯基)-3,3,5-三甲基环己烷，其中： (A) 芳族聚碳酸酯的比粘度为 0.2 至 0.5、 (B) 芳香族聚碳酸酯的吸水率为 0.2%（重量百分比）或更低、 (C) 芳香族聚碳酸酯的低聚物含量为 10%或以下，以及 (D) 每克聚碳酸酯树脂中直径为 0.5 微米或更大的未溶解颗粒的数量为 25,000 个或更少，每克聚碳酸酯树脂中直径为 1 微米或更大的未溶解颗粒的数量为 500 个或更少。
• Lube oil compostitions for diesel engines
  申请人：IDEMITSU KOSAN COMPANY LIMITED

  公开号：EP0839894A1

  公开（公告）日：1998-05-06

  A lube oil composition which is suitably used for diesel engines which exhaust large amounts of sulfur dioxides (SOx). The composition exhibit excellent corrosion/wear preventive properties against SOx. The lube oil composition of the invention for diesel engines includes a lube oil base having a kinematic viscosity of 8-35 mm2/s at 100°C; a component (A) which is a compound selected from the group consisting of over based sulfonates of alkaline earth metals, over based phenates of alkaline earth metals, and over based salicylates of alkaline earth metals; and a component (B) which is a bis-type succinic imide compound having an absorption ratio, α/β (wherein α is the intensity of an absorption peak at 1550±10 cm-1 and β is the intensity of an absorption peak at 1700±10 cm-1), of absorption peaks in an IR spectrum of not more than 0.005.

  一种润滑油组合物，适用于排放大量二氧化硫（SOx）的柴油发动机。该组合物对 SOx 具有优异的防腐蚀/抗磨损性能。本发明用于柴油发动机的润滑油组合物包括：100°C 时运动粘度为 8-35 mm2/s 的润滑油基础；从碱土金属过基磺酸盐、碱土金属过基苯酸盐和碱土金属过基水杨酸盐所组成的组中选出的化合物成分 (A)；以及碱土金属过基苯酸盐和碱土金属过基水杨酸盐所组成的组中选出的化合物成分 (B)；成分 (B)是双型琥珀酰亚胺化合物，其在红外光谱中吸收峰的吸收比 α/β（其中 α 是 1550±10 cm-1 处吸收峰的强度，β 是 1700±10 cm-1 处吸收峰的强度）不超过 0。005.
• THERMAL-HISTORY-CHANGE-TYPE INDICATOR
  申请人：Nissin Foods Holdings Co., Ltd.

  公开号：EP3193147A1

  公开（公告）日：2017-07-19

  [Problem to be Solved] There are provided: a thermal history change type indicator by which the degree of reconstitution with hot water of instant cup noodles can be easily visually recognized in conjunction with the temperature in a container; and a set of a thermal history change type indicator and instant cup noodles comprising the thermal history change type indicator and instant cup noodles. [Solution] The thermal history change type indicator comprises: a thermally meltable material layer containing a thermally meltable material; a permeation layer, wherein the permeation layer becomes transparent or translucent when the thermally meltable material melts and permeates the permeation layer; a thermally meltable material permeation-inhibiting layer for inhibiting the permeation of the thermally meltable material into the permeation layer, wherein the thermally meltable material permeation-inhibiting layer is arranged between the thermally meltable material layer and the permeation layer; and a protective layer, wherein the thermally meltable material layer, the permeation layer, and the thermally meltable material permeation-inhibiting layer are layered, and the permeation layer side of the layered product is covered with the protective layer. The set of a thermal history change type indicator and instant cup noodles comprises the thermal history change type indicator and instant cup noodles.

  [有待解决的问题］ 本发明提供了：一种热历史变化类型指示器，通过该指示器可以结合容器中的温度很容易地直观识别方便杯面与热水的混合程度；以及一套热历史变化类型指示器和方便杯面，包括热历史变化类型指示器和方便杯面。 [解决方案］ 热历史变化类型指示器包括热熔材料层，包含热熔材料； 渗透层，其中当热熔材料熔化并渗透到渗透层时，渗透层变得透明或半透明； 热熔材料渗透抑制层，用于抑制热熔材料渗透到渗透层，其中热熔材料渗透抑制层布置在热熔材料层和渗透层之间；保护层，其中热熔材料层、渗透层和热熔材料防渗层是分层的，分层产品的渗透层一侧覆盖有保护层。热历史变化类型指示器和方便杯面的组合包括热历史变化类型指示器和方便杯面。