(R)-3,7-Dimethyl-oct-6-enoic acid ((S)-1-phenyl-ethyl)-amide | 108535-84-8

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: (R)-3,7-Dimethyl-oct-6-enoic acid ((S)-1-phenyl-ethyl)-amide
• CAS: 108535-84-8
• 化学式: C₁₈H₂₇NO
• 分子量: 273.418
• InChiKey: OZTNJNOKZBZEKJ-CVEARBPZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.64
• 重原子数：
  20.0
• 可旋转键数：
  7.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  29.1
• 氢给体数：
  1.0
• 氢受体数：
  1.0

反应信息

• 作为产物：
  描述：

  (R)-(+)-香茅酸 、 (S)-(-)- α-甲基苄胺 在 N,N'-二环己基碳二亚胺 作用下， 以 乙酸乙酯 为溶剂， 反应 1.0h， 生成 (R)-3,7-Dimethyl-oct-6-enoic acid ((S)-1-phenyl-ethyl)-amide
  参考文献：
  名称：

  Syntheses of the Sex-Attractant of Pine Sawflies

  摘要：

  为了确定不同种类松锯齿蝇性引诱剂的立体化学结构，合成了(2S,3R,7R)-、(2S,3R,7S)-和(2S,3S,7S)-2-乙酰氧基和 2-丙酰氧基-3,7-二甲基十五烷。每种信息素的醇分子都是通过 C12 嵌段的格氏试剂与 C5 嵌段的甲苯磺酸盐偶联制备的。C12 嵌段(R)-和(S)-1-溴-2-甲基十一烷是由(R)-(+)-pulegone 制备的。(2R,3S)-或(2S,3S)-2-甲基-3-四氢吡喃氧基-1-(对甲苯磺酰氧基)丁烷等 C5 嵌段是由(2S,3S)-或(2R,3S)-2-甲基-3-羟基丁酸在不对称改性镍催化剂上通过 2-甲基-3-氧代丁酸甲酯的对映异构加氢反应制备的。

  DOI：

  10.1246/bcsj.57.1954

文献信息

• Biosynthetic studies of marine lipids. 11. Synthesis, biosynthesis, and absolute configuration of the internally branched demospongic acid, 22-methyl-5,9-octacosadienoic acid
  作者：Daniel Raederstorff、Arthur Y. L. Shu、Janice E. Thompson、Carl Djerassi

  DOI：10.1021/jo00388a001

  日期：1987.6
• An NMR Strategy for Determination of Configuration of Remote Stereogenic Centers:  3-Methylcarboxylic Acids
  作者：Thomas R. Hoye、Dmitry O. Koltun

  DOI：10.1021/ja972664n

  日期：1998.5.1

  A method has been developed for determining the absolute configuration of carboxylic acids bearing a methyl substituent at C(3). A series of 1-arylethylamide derivatives of such acids was prepared in which both the amine- and acid-derived portions were of known configuration. Diagnostic chemical shift differences (Delta delta's) were identified for various proton resonances in each pair of diastereomeric amides and a new method was established based on the observed trends. A conformational model (supported by computational calculations) consistent with the observed differential shielding effects is offered. This approach represents a general strategy that can be adapted to other substructures.