21-methyl-1-docosanol | 127486-81-1

• 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: 21-methyl-1-docosanol
• 英文别名: 21-methyldocosan-1-ol
• CAS: 127486-81-1
• 化学式: C₂₃H₄₈O
• 分子量: 340.634
• InChiKey: MIRBVURHUDZWDM-UHFFFAOYSA-N

物化性质

• 熔点：
  69 °C
• 沸点：
  394.8±10.0 °C(Predicted)
• 密度：
  0.838±0.06 g/cm3(Temp: 20 °C; Press: 760 Torr)(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  10.8
• 重原子数：
  24
• 可旋转键数：
  20
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  21-methyl-1-docosanol 在 chromium(VI) oxide 、 磷化氢 、 sodium hydroxide 、 溴 作用下， 以 水 、 丙酮 为溶剂， 反应 30.0h， 生成 (+/-)-2-hydroxy-21-methyldocosanoic acid
  参考文献：
  名称：

  Synthesis of (2S,2′R,3S,4R)-2-(2′-Hydroxy-21′-methyldocosanoylamino)- 1,3,4-pentadecanetriol, the Ceramide Sex Pheromone of the Female Hair Crab,…

  摘要：

  以(S)-丝氨酸和 12-溴-1-十二醇为起点，合成了雌性大闸蟹（Erimacrus isenbeckii）的神经酰胺性信息素[(2S,2′R,3S,4R)-2-(2′-羟基-21′-甲基月桂酰氨基)-1,3,4-十五烷三醇（1）]。

  DOI：

  10.1271/bbb.66.1531
• 作为产物：
  描述：

  15-methyl-1-hexadecanol 在 吡啶 、 对甲苯磺酸 、 magnesium 作用下， 以 四氢呋喃 、 乙醇 为溶剂， 反应 3.0h， 生成 21-methyl-1-docosanol
  参考文献：
  名称：

  Synthesis of (2S,2′R,3S,4R)-2-(2′-Hydroxy-21′-methyldocosanoylamino)- 1,3,4-pentadecanetriol, the Ceramide Sex Pheromone of the Female Hair Crab,…

  摘要：

  以(S)-丝氨酸和 12-溴-1-十二醇为起点，合成了雌性大闸蟹（Erimacrus isenbeckii）的神经酰胺性信息素[(2S,2′R,3S,4R)-2-(2′-羟基-21′-甲基月桂酰氨基)-1,3,4-十五烷三醇（1）]。

  DOI：

  10.1271/bbb.66.1531

文献信息

• RINSE-OFF CONDITIONING COMPOSITION COMPRISING A NEAR-TERMINAL BRANCHED ALCOHOL
  申请人：The Procter & Gamble Company

  公开号：EP2593073A2

  公开（公告）日：2013-05-22
• Rinse-Off Conditioning Composition Comprising a Near-Terminal Branched Alcohol
  申请人：Sunkel Jorge Max

  公开号：US20120014901A1

  公开（公告）日：2012-01-19

  A rinse-off conditioning composition comprising: (a) near-terminal branched alcohol according to Formula I; (b) a cationic surfactant; (c) a terminal aminosilicone; wherein the near-terminal branched alcohol and the cationic surfactant are comprised in a lamellar gel matrix.
• LUBRICATING OIL COMPOSITION FOR FLUID DYNAMIC BEARING AND HDD MOTOR FABRICATED USING THE SAME
  申请人：Jung Ha Yong

  公开号：US20130090276A1

  公开（公告）日：2013-04-11

  There are provided a lubricating oil composition for a fluid dynamic bearing and a hard disk drive (HDD) motor fabricated using the same. The lubricating oil composition for a fluid dynamic bearing includes: an aliphatic mono carboxylic acid ester, as a base oil, obtained by esterification between alcohol represented by the following Chemical Formula 1; and 2-ethylbutanoic acid: where n indicates an integer of 6 to 20. Therefore, the HDD motor is fabricated by using the lubricating oil composition for a fluid dynamic bearing having low viscosity, low evaporation loss, and improved oxidation stability at room temperature, whereby quality reliability according to the use of the motor for a long period of time may be improved.
• PROCESS FOR PRODUCING A POLYURETHANE COMPOSITION
  申请人：BASF SE

  公开号：US20210380750A1

  公开（公告）日：2021-12-09

  The presently claimed invention provides a continuous process for preparing a polyurethane composition which behaves as a rheology modifier upon addition to paint and coating formulations. The present process employs mixers for homogenization of highly viscous polyurethane polymers and by adjusting the process parameters and reactor conditions in specified ranges obtained a polyurethane composition. The polyurethane composition obtained from the process of the present invention is used as thickener in water-borne paint and coating formulations.
• US8603449B2
  申请人：——

  公开号：US8603449B2

  公开（公告）日：2013-12-10