十八烷基三甲基铵 | 15461-40-2

• 分子结构分类: 有机化合物 - 有机氮化合物
• 中文名称: 十八烷基三甲基铵
• 英文名称: octadecyltrimethylammonium
• 英文别名: octadecyl trimethylammonium；steartrimonium chloride；Trimethyl-octadecyl-ammonium；N,N,N-Trimethyloctadecylammonium；Octadecyl-trimethyl-ammonium；Octadecyl-trimethylammonium；Stearyltrimethylammonium；trimethyl(octadecyl)azanium
• CAS: 15461-40-2
• 化学式: C₂₁H₄₆N
• 分子量: 312.603
• InChiKey: PDSVZUAJOIQXRK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  9.1
• 重原子数：
  22
• 可旋转键数：
  17
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  、 十八烷基三甲基铵 以 not given 为溶剂， 生成
  参考文献：
  名称：

  Cholesterol Binding to the Alkyl Chains of an Intercalated Surfactant Bilayer

  摘要：

  Alkyl-chain bilayers can be formed within the galleries of layered inorganic solids by intercalation of long-chain amphiphilic surfactant molecules. It is shown here that cholesterol, normally found in lipid bilayers of biomembranes, can bind to the intercalated bilayer, thereby providing a novel route for the insertion of cholesterol in inorganic solids. The new hybrid material is held together by purely noncovalent, nonionic dispersive forces and is a novel example of supramolecular architecture in the solid state. Additionally, it provides a simple system to understand the nature of cholesterol-hydrocarbon interactions at a molecular level. The rigid sterol ring of the cholesterol is located within the intercalated bilayer and is oriented parallel to the alkyl chains. Its presence affects the conformation of neighboring alkyl chains. An analysis of the methylene progression bands in the infrared spectrum of the intercalated bilayer, with and without cholesterol, indicates that these chains are forced to adopt a rigid, all-trans, planar conformation. Conformational freedom of alkyl chains once-removed appear unaffected.

  DOI：

  10.1021/jp034672y

文献信息

• SKIN EXTERNAL PREPARATIONS AND COSMETICS
  申请人：Aoki Hirobumi

  公开号：US20100280111A1

  公开（公告）日：2010-11-04

  An object of the present invention is to provide skin external preparations and cosmetics which contain a branched acyl carnitine and have excellent formulation stability. A skin external preparation of the present invention includes a carnitine derivative represented by the following Formula (1) and/or a carnitine derivative salt represented by the following Formula (2), and an amphoteric surfactant. In Formula (1), R 1 and R 2 are each independently a C1-18 optionally branched, saturated or unsaturated aliphatic hydrocarbon group. In Formula (2), R 1 and R 2 are the same as in Formula (1), X − is a specific anion and Y + is a specific cation.

  本发明的一个目的是提供含有支链酰基肉碱并具有优异配方稳定性的皮肤外用制剂和化妆品。本发明的皮肤外用制剂包括以下式（1）所表示的肉碱衍生物和/或以下式（2）所表示的肉碱衍生物盐，以及一种两性表面活性剂。在式（1）中，R1和R2分别独立地是C1-18的可选支链、饱和或不饱和脂肪烃基。在式（2）中，R1和R2与式（1）中相同，X−是特定的阴离子，Y+是特定的阳离子。
• Composition for separating mixtures
  申请人：Procter Ian

  公开号：US20070249502A1

  公开（公告）日：2007-10-25

  Therefore, there is provided herein in one specific embodiment a composition comprising: a) at least one silicone surfactant, and where silicone of silicone surfactant (a) has the general structure of: M a 1 M b 2 D c 1 D d 2 T e 1 T f 2 Q g ; and, 2≦( a+b+c+d+e+f+g )≦100; and, b) a mixture comprising an aqueous phase, a solid filler phase and optionally an oil phase that is substantially insoluble in said aqueous phase.

  因此，在一个具体实施例中提供了一种组合物，包括：a) 至少一种硅表面活性剂，其中硅表面活性剂(a)的硅具有以下一般结构：Ma1Mb2Dc1Dd2Te1Tf2Qg；以及，2≦(a+b+c+d+e+f+g)≦100；和，b) 一种混合物，包括水相、固体填料相和可选地在所述水相中基本不溶的油相。
• Multi-functional ionic liquid compositions for overcoming polymorphism and imparting improved properties for active pharmaceutical, biological, nutritional, and energetic ingredients
  申请人：Rogers D. Robin

  公开号：US20070093462A1

  公开（公告）日：2007-04-26

  Disclosed are ionic liquids and methods of preparing ionic liquid compositions of active pharmaceutical, biological, nutritional, and energetic ingredients. Also disclosed are methods of using the compositions described herein to overcome polymorphism, overcome solubility and delivery problems, to control release rates, add functionality, enhance efficacy (synergy), and improve ease of use and manufacture.

  揭示了离子液体及制备活性药物、生物、营养和能量成分的离子液体组合物的方法。还揭示了利用本文描述的组合物的方法，以克服多型性、克服溶解度和输送问题、控制释放速率、增加功能性、增强功效（协同作用）以及改善易用性和制造工艺。
• METHOD FOR PRODUCING 3-MERCAPTOPROPIONIC ACID, AND METHODS USING SAME FOR PRODUCING CARBOXYLIC ACID ESTER COMPOUND HAVING MERCAPTO GROUP AND THIOURETHANE-BASED OPTICAL MATERIAL
  申请人：KOC SOLUTION CO., LTD.

  公开号：US20180179154A1

  公开（公告）日：2018-06-28

  A method for producing 3-mercaptopropionic acid and methods using same for producing a carbonic acid ester compound having a mercapto group and a thiourethane-based optical material. The present invention improves a process during the production of 3-mercaptopropionic acid, significantly increases yield, and reduces the temperature and time during vacuum distillation, thereby preventing the destruction of a product and significantly increasing productivity. The present invention allows high-purity 3-mercaptopropionic acid having an excellent color to be finally yielded; accordingly, by using same, a high-purity carbonic acid ester compound having an excellent color and a mercapto group can be inexpensively obtained. A thiourethane-based polymeric composition and a thiourethane-based optical material obtained by polymerizing same can likewise be inexpensively obtained by using said carbonic acid ester compound. Such carbonic acid ester compound can be used for the production of inexpensive thiourethane optical lenses; consequently, inexpensive optical lenses having an excellent color can be obtained.

  一种生产3-巯基丙酸的方法以及使用该方法生产含有巯基的碳酸酯化合物和基于硫脲酯基的光学材料的方法。本发明改进了在生产3-巯基丙酸过程中的工艺，显著提高了产量，并减少了真空蒸馏过程中的温度和时间，从而防止产品的破坏并显著提高生产效率。本发明允许最终得到高纯度、颜色优异的3-巯基丙酸；因此，通过使用该酸，可以廉价获得高纯度、颜色优异且含有巯基的碳酸酯化合物。通过聚合该碳酸酯化合物获得的基于硫脲酯基的聚合物组合物和基于硫脲酯基的光学材料同样可以通过使用上述碳酸酯化合物廉价获得。这种碳酸酯化合物可用于生产廉价的硫脲酯光学透镜；因此，可以获得具有优异颜色的廉价光学透镜。
• METHOD FOR PRODUCING EPOXY COMPOUND
  申请人：ENEOS CORPORATION

  公开号：US20210340118A1

  公开（公告）日：2021-11-04

  The invention provides a method for producing an epoxy compound by hydrogen peroxide using an organic compound having a carbon-carbon double bond as a raw material, wherein a by-product is suppressed from being generated and the epoxy compound is produced in a high yield. In particular, the invention provides a method for producing an epoxy compound involving oxidizing a carbon-carbon double bond in an organic compound with hydrogen peroxide in the presence of a catalyst, wherein the catalyst comprises a tungsten compound; a phosphoric acid, a phosphonic acid or salts thereof; and an onium salt having an alkyl sulfate ion represented by formula (I) as an anion: wherein R 1 is a linear or branched aliphatic hydrocarbon group having 1 to 18 carbons, which may be substituted with 1 to 3 phenyl groups.

  该发明提供了一种利用过氧化氢以有机化合物作为原料生产环氧化合物的方法，其中抑制了生成副产物，并且以高产率生产环氧化合物。具体地，该发明提供了一种生产环氧化合物的方法，涉及在催化剂存在下利用过氧化氢氧化有机化合物中的碳碳双键，其中该催化剂包括钨化合物；磷酸，膦酸或其盐；以及具有由式(I)所表示的烷基硫酸盐离子的阳离子的季铵盐：其中R1是具有1至18个碳原子的线性或支链脂肪烃基，可能被1至3个苯基取代。