(4S)-4-methyl-1-octanol | 116293-51-7

• 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: (4S)-4-methyl-1-octanol
• 英文别名: (S)-4-Methyl-1-octanol；(S)-4-methyloctan-1-ol；levorotatory form,(-)(S)-4-methyl-octanol-(1)；Linksdrehende Form,(-)(S)-4-Methyl-octanol-(1)；(4S)-4-methyloctan-1-ol
• CAS: 116293-51-7
• 化学式: C₉H₂₀O
• 分子量: 144.257
• InChiKey: MWWKESKJRHQWEF-VIFPVBQESA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  10
• 可旋转键数：
  6
• 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：

  (4S)-4-methyl-1-octanol 在 Jones reagent 作用下， 以 丙酮 为溶剂， 以98%的产率得到(4S)-4-methyloctanoic acid
  参考文献：
  名称：

  Asymmetric synthesis of (R)- and (S)-4-methyloctanoic acids. A new route to chiral fatty acids with remote stereocenters

  摘要：

  The enantioselective synthesis of both enantiomers of 4-methyloctanoic acid, one major aggregation pheromone component of the rhinoceros beetles of the genus Oryctes and an important aroma compound, is described. The key step of the synthesis is based on a stereospecific alkylation with an alcohol-protected alkyl iodide using a pseudoephedrine derivative as a chiral auxiliary followed by subsequent removal of the auxiliary. Both enantiomers are obtained in excellent yields and enantioselectivities (93-94% ee). The strategy outlined allows preparation of a wide variety of enantiopure methyl-branched saturated and unsaturated tatty acids. (c) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2009.02.041
• 作为产物：
  描述：

  (R)-(+)-β-香茅醇 在 吡啶 、 dilithium tetrachlorocuprate 、 臭氧 作用下， 以 四氢呋喃 、 甲醇 、 二氯甲烷 为溶剂， 反应 21.0h， 生成 (4S)-4-methyl-1-octanol
  参考文献：
  名称：

  Synthesis of the Enantiomers of Some Methyl-branched Cuticular Hydrocarbons of the Ant, Diacamma sp.

  摘要：

  3-甲基二十五烷、3-甲基二十七烷、3-甲基二十九烷、13-甲基二十七烷和5-甲基二十七烷的对映体是通过从2-甲基丁基溴或香茅醇的对映体开始合成的。这些甲基分支的烷烃是蚁后体表角质层碳氢化合物的特征成分，来自蚁属Diacamma。

  DOI：

  10.1271/bbb.65.305

文献信息

• Pheromone Synthesis, CLXXVI. Synthesis of the Four Stereoisomers of 3,13-Dimethylheptadecane, the Major Sex Pheromone Component of the Western False Hemlock Looper
  作者：Hirosato Takikawa、Yasuo Shirai、Makoto Kobayashi、Kenji Mori

  DOI：10.1002/jlac.199619961205

  日期：1996.12

  All of the four stereoisomers of 3,13-dimethylheptadecane (1), the female-produced sex pheromone of the western false hemlock looper (Nepytia freemani), were synthesized by starting from the enatiomers of citronellol (2a) and 2-methyl-1-butanol (4a).

  从香茅醇（2a）和2-甲基-1的对映体开始合成了3,13-二甲基庚烷（1）的所有四种立体异构体，它们是西方虚假铁杉弯钩虫（Nepytia freemani）的雌性产生的性信息素。-丁醇（4a）。
• Levene; Marker, Journal of Biological Chemistry, 1931, vol. 91, p. 95
  作者：Levene、Marker

  DOI：——

  日期：——
• Synthesis of the Enantiomers of Some Methyl-branched Cuticular Hydrocarbons of the Ant, Diacamma sp.
  作者：Kaoru MARUKAWA、Hirosato TAKIKAWA、Kenji MORI

  DOI：10.1271/bbb.65.305

  日期：2001.1

  The enantiomers of 3-methylpentacosane, 3-methylheptacosane, 3-methylnonacosane, 13-methylheptacosane, and 5-methylheptacosane were synthesized by starting from the enantiomers of 2-methylbutyl bromide or citronellol. These methyl-branched alkanes are the characteristic components of the cuticular hydrocarbons of queen of the ant, Diacamma sp.

  3-甲基二十五烷、3-甲基二十七烷、3-甲基二十九烷、13-甲基二十七烷和5-甲基二十七烷的对映体是通过从2-甲基丁基溴或香茅醇的对映体开始合成的。这些甲基分支的烷烃是蚁后体表角质层碳氢化合物的特征成分，来自蚁属Diacamma。
• Asymmetric synthesis of (R)- and (S)-4-methyloctanoic acids. A new route to chiral fatty acids with remote stereocenters
  作者：Lourdes Muñoz、Ma Pilar Bosch、Gloria Rosell、Angel Guerrero

  DOI：10.1016/j.tetasy.2009.02.041

  日期：2009.3

  The enantioselective synthesis of both enantiomers of 4-methyloctanoic acid, one major aggregation pheromone component of the rhinoceros beetles of the genus Oryctes and an important aroma compound, is described. The key step of the synthesis is based on a stereospecific alkylation with an alcohol-protected alkyl iodide using a pseudoephedrine derivative as a chiral auxiliary followed by subsequent removal of the auxiliary. Both enantiomers are obtained in excellent yields and enantioselectivities (93-94% ee). The strategy outlined allows preparation of a wide variety of enantiopure methyl-branched saturated and unsaturated tatty acids. (c) 2009 Elsevier Ltd. All rights reserved.