油酸庚酯 | 42254-63-7

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 中文名称: 油酸庚酯
• 英文名称: heptyl oleate
• 英文别名: heptyl (Z)-octadec-9-enoate
• CAS: 42254-63-7
• 化学式: C₂₅H₄₈O₂
• 分子量: 380.655
• InChiKey: XSCIEKYDPGHXMD-YPKPFQOOSA-N

物化性质

• LogP：
  11.075 (est)

计算性质

• 辛醇/水分配系数(LogP)：
  10.5
• 重原子数：
  27
• 可旋转键数：
  22
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 海关编码：
  2916150000

反应信息

• 作为产物：
  描述：

  油酸甲酯 、 正庚醇 在 n-C₇H₁₅ONa 作用下， 反应 1.5h， 生成 油酸庚酯
  参考文献：
  名称：

  脂肪酸酯的熔点和粘度是工程油料的潜在目标

  摘要：

  AbstractOur previous isolation of branched‐chain fatty acid (BCFA) methyl esters from lanolin was improved and scaled up. Also, oleate esters of isopropanol, oleyl alcohol and normal alcohols of 1–12 carbons chain lengths were prepared. Esters were made by interesterification with sodium alcoholates and by esterification with Candida antarctica lipase. It proved easier to obtain pure esters by the enzymatic synthesis. Melting points and viscosities over the range of 0–70 °C were determined in order to better identify potential lubricant targets that might be produced by genetically modified oilseed crops. Isopropyl and butyl oleate have melting points of −33 and −32 °C, respectively and viscosities that range from ~17 cp (0 °C) to ~2.5 cp (70 °C). They should have suitable stability for lubricants. BCFA esters had viscosities similar to their straight chain analogs. Viscosities increased with alcohol chain length and decreased with temperature. The dependence of viscosity on temperature was fit with an equation based on Erying’s rate equation. Some esters with branched acid or branched alcohol moieties, and some oleate esters might be utilized as biolubricants or biofuels on the basis of their melting points and viscosities.

  DOI：

  10.1007/s11746-007-1159-9

文献信息

• Causes of unreproducibility of C. rugosa lipase-catalyzed reactions in slightly hydrated organic media
  作者：Pablo Domínguez de María、JoséV Sinisterra Gago

  DOI：10.1016/s0040-4020(99)00473-1

  日期：1999.7

  activity in lipase-catalyzed reactions in organic media. Three factors control the catalytic activity in these media: i) relative proportion of isoenzymes; ii) amount of water in the lyophilized crude enzyme and iii) amount of lipase protein in the commercial powder. Thus we propose two simple reaction tests: i) heptyl oleate synthesis (specific of lipases), ii) enantioselective esterification of (R) or

  以甘油三丁酸酯的水解来测量的脂肪酶活性是定量测定冻干的脂肪酶在水解反应中的脂肪酶活性的有效测定法，但是它不能用于预测在有机介质中脂肪酶催化的反应中的催化活性。三个因素控制着这些介质中的催化活性：i）同工酶的相对比例；ii）冻干的粗酶中的水量，以及iii）市售粉末中的脂肪酶蛋白量。因此，我们提出了两个简单的反应测试：i）油酸庚酯的合成（脂肪酶的特异性），ii）（R）或（S）2-（3-苯甲酰基）苯基丙酸的对映选择性酯化。该方法适用于皱纹假丝酵母的不同粗脂肪酶，在不同的发酵罐条件下获得，并显示了合成数据不可重复性的根源。
• Chemically Modified Lipase from <i>Thermomyces lanuginosus</i> with Enhanced Esterification and Transesterification Activities
  作者：Jennifer Noro、Artur Cavaco‐Paulo、Carla Silva

  DOI：10.1002/cctc.202101050

  日期：2021.11.8

  The chemical modification of lipase from Thermomyces lanuginosus using dodecyl aldehyde as linker, showed to beneficially improve its catalytic activity. The results reported in this paper, showed an outstanding increase of its activity towards esterification and transesterification reactions, comparing with the native form, being the most pronounced improvement obtained when using the longest alcohol

  使用十二醛作为接头对来自疏毛嗜热丝孢菌的脂肪酶进行化学修饰，显示出有益地提高了其催化活性。本文报道的结果表明，与天然形式相比，其对酯化和酯交换反应的活性显着增加，这是在两种类型反应中使用最长醇链时获得的最显着改进。
• A method for improving the release of a cast concrete item from the mould by applying to the mould a mould release composition
  申请人：CASTROL A/S

  公开号：EP0328158A1

  公开（公告）日：1989-08-16

  The release of a moulded concrete body from the mould can be improved by applying to the mould an effective amount of a concrete release composition comprising one or more oily esters of aliphatic carboxylic acids with mono- or dihydric alcohols, with a melting point of at the most 35°C, the total number of carbon atoms in the esters being 8-46, in an amount of 26-100% by weight, calculated on the total composition, optionally in admixture with other additives such as mineral oils, vegetable oils, glycols, glycol ethers, alkanols, emulsifiers and/or water.

  在模具上涂抹有效量的混凝土脱模组合物，可改善模制混凝土体的脱模效果，该组合物由一种或多种脂肪族羧酸与一元醇或二元醇的油性酯组成，熔点不超过 35°C、酯中的碳原子总数为 8-46，重量百分比为 26-100%，以总成分计算，可与其他添加剂如矿物油、植物油、乙二醇、乙二醇醚、烷醇、乳化剂和/或水混合使用。
• Ink composition for lithography and methods of printing therefrom
  申请人：SAKATA INKUSU KABUSHIKI KAISHA

  公开号：EP0378890A1

  公开（公告）日：1990-07-25

  An ink composition for lithography having good printing properties which make it possible to print from on both a lithographic printing plate with a fountain solution and a waterless lithographic printing plate without using any kind of fountain system to mask a non-­image area of the plate, said ink composition containing a polybutadiene modified resin as a vehicle resin and if it is desirable, further containing an aliphatic acid ester, an aliphatic dibasic acid ester, a phosphoric acid ester and a mixture thereof as all or a part of a drying or semi-­drying oil, said ester having a boiling point higher than 200°C, and a coagulating point below -5°C.

  一种用于平版印刷的油墨组合物，具有良好的印刷性能，可以在使用润版液的平版印版和无水平版印版上进行印刷，而无需使用任何润版系统遮盖印版上的非图像区域、所述油墨组合物含有聚丁二烯改性树脂作为载体树脂，如果需要，还含有脂肪族酸酯、脂肪族二元酸酯、磷酸酯和它们的混合物作为干燥油或半干燥油的全部或部分，所述酯的沸点高于 200°C，凝固点低于-5°C。
• Method for retarding the setting of mortar and concrete surfaces
  申请人：W.R. GRACE & CO.-CONN.

  公开号：EP1887053A1

  公开（公告）日：2008-02-13

  An exemplary method for set retarding the surface of a mortar or concrete material, comprising applying to the surface of a mortar or concrete, or to the inner surface of a mold for forming the mortar or concrete, a non-petroleum based hot melt coating composition which is heated to assume a flowable or sprayable form, and allowing the hot melt coating composition to cool to ambient temperature whereby the composition forms a solidified membrane, and thereafter removing the membrane using pressurized water. Preferably, the hot melt coating composition contains at least one agent operative to retard the setting of the mortar or concrete, and optional finely divided particulate materials, light-reflective pigments, or mixtures thereof.

  一种用于砂浆或混凝土材料表面凝固延缓的示例性方法，包括将非石油基热熔涂料组合物涂抹在砂浆或混凝土表面，或涂抹在用于形成砂浆或混凝土的模具内表面，该组合物经加热后呈可流动或可喷涂形式，并使热熔涂料组合物冷却至环境温度，从而使该组合物形成一层固化膜，然后使用加压水去除该膜。热熔涂料组合物最好含有至少一种可延缓灰泥或混凝土凝固的药剂，以及可选的细小颗粒材料、光反射颜料或其混合物。