trans-crotonic acid isopentyl ester | 73545-17-2

• 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: trans-crotonic acid isopentyl ester
• 英文别名: trans-Crotonsaeure-isopentylester；Isopentyl 2-butenoate；3-methylbutyl (E)-but-2-enoate
• CAS: 73545-17-2
• 化学式: C₉H₁₆O₂
• 分子量: 156.225
• InChiKey: JAVOYFHBJFLMRQ-SNAWJCMRSA-N

物化性质

• LogP：
  3.258 (est)
• 保留指数：
  1088;1074;1082;1082

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  11
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  巴豆酸 、 alkaline earth salt of/the/ methylsulfuric acid 反应 2.0h， 以80%的产率得到trans-crotonic acid isopentyl ester
  参考文献：
  名称：

  Esterification in dry Media Using Ferric Perchlorate Adsorbed on Silica Gel

  摘要：

  Adsorption of Fe(ClO4)(3)(H2O)(6) onto chromatographic grade silica gel in the presence of alcohol (to be used for esterification) produces a supported reagent, Fe(ClO4)(3)(ROH)(6)/SiO2. This reagent, has been found effective for the rapid and high yield of esters, on grinding in the presence of carboxylic acids using pestle and mortar in the solid state.

  DOI：

  10.1080/00397919808004858

文献信息

• METHOD FOR PRODUCING CARBOXYLIC ACID AMIDE
  申请人：Tomokawa Junichi

  公开号：US20130123505A1

  公开（公告）日：2013-05-16

  A carboxamide can be produced in a high yield by a method for producing a carboxamide, for example, represented by formula (4): (wherein R 1 and R 3 are as defined below), the method comprising a step of allowing a carboxylic acid ester represented by formula (1): (wherein R 1 represents an optionally substituented C 1 -C 20 hydrocarbon group or an optionally substituented C 3 -C 20 heterocyclic group, and R 2 represents an optionally substituented C 1 -C 20 hydrocarbon group), an amine represented by formula (2): R 3 —NH 2 (2) (wherein R 3 represents a hydrogen atom or an optionally substituented C 1 -C 20 hydrocarbon group), and a formamide compound represented by formula (3): (wherein R 3 is as defined above) to react in the presence of a metal alkoxide.

  通过一种生产羧酰胺的方法可以高产率生产羧酰胺，例如，如公式（4）所示的方法：（其中R1和R3如下定义），该方法包括允许由公式（1）表示的羧酸酯（其中R1表示可选取代的C1-C20烃基或可选取代的C3-C20杂环基，R2表示可选取代的C1-C20烃基），由公式（2）表示的胺：R3—NH2（2）（其中R3表示氢原子或可选取代的C1-C20烃基），以及由公式（3）表示的甲酰胺化合物（其中R3如上所定义）在金属烷氧化物存在下反应的步骤。
• Polymeric material for liquid crystal/polymer composite film, liquid crystal/polymer composite film, record display medium, and use thereof
  申请人：DAI NIPPON PRINTING CO., LTD.

  公开号：EP0790289A1

  公开（公告）日：1997-08-20

  A record display medium is provided which can offer a high display contrast and is less likely to cause a lowering of contrast or disappearance of display even in low temperature and high temperature regions. A polymeric material for a liquid crystal/polymer composite film comprising a liquid crystal present in a polymer matrix, a liquid crystal/polymer composite film using the material, and use of the record display medium are also provided. The polymeric material for a liquid crystal/polymer composite film comprising a liquid crystal present in a polymer matrix has a glass transition temperature of 150°C or above and is insoluble in water.

  本发明提供了一种记录显示介质，它能提供较高的显示对比度，即使在低温和高温区域也不易导致对比度降低或显示消失。本发明还提供了一种用于液晶/聚合物复合膜的聚合物材料，该材料包括存在于聚合物基质中的液晶、使用该材料的液晶/聚合物复合膜以及该记录显示介质的用途。用于液晶/聚合物复合膜的聚合物材料包含在聚合物基体中的液晶，其玻璃化转变温度为 150°C 或以上，并且不溶于水。
• Fragrance material
  申请人：INTERNATIONAL FLAVORS & FRAGRANCES INC.

  公开号：EP1350506A2

  公开（公告）日：2003-10-08

  Non-aqueous based fragrance compositions containing a siloxane material are disclosed. The fragrance compositions are suitable for many applications including cosmetics, laundry care and personal care items. The fragrance compositions can also be used in air fresheners, particularly those air fresheners that contain heating elements.

  本发明公开了含有硅氧烷材料的非水基香料组合物。这些香料组合物适用于多种用途，包括化妆品、洗衣护理和个人护理用品。这些香料组合物还可用于空气清新剂，尤其是含有加热元件的空气清新剂。
• Jeffery; Vogel, Journal of the Chemical Society, 1948, p. 663
  作者：Jeffery、Vogel

  DOI：——

  日期：——
• Schjanberg, Zeitschrift fur Physikalische Chemie, Abteilung A: Chemische Thermodynamik, Kinetik, Elektrochemie, Eigenschaftslehre, 1935, vol. 174, p. 468
  作者：Schjanberg

  DOI：——

  日期：——