(+)-(2S)-methyl-decanoic acid tert-butyl ester | 1059044-02-8

• 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: (+)-(2S)-methyl-decanoic acid tert-butyl ester
• CAS: 1059044-02-8
• 化学式: C₁₅H₃₀O₂
• 分子量: 242.402
• InChiKey: VULHROMOFQYLNP-ZDUSSCGKSA-N

物化性质

• 沸点：
  263.3±8.0 °C(Predicted)
• 密度：
  0.865±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.71
• 重原子数：
  17.0
• 可旋转键数：
  8.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.93
• 拓扑面积：
  26.3
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  (+)-(2S)-methyl-decanoic acid tert-butyl ester 在 三氟乙酸 作用下， 以 二氯甲烷 为溶剂， 反应 5.0h， 以95%的产率得到(S)-2-methyldecanoic acid
  参考文献：
  名称：

  Synthesis of a Mycobacterium tuberculosis Tetra-acylated Sulfolipid Analogue and Characterization of the Chiral Acyl Chains Using Anisotropic NAD 2D-NMR Spectroscopy

  摘要：

  Tetra-O-acylated sulfolipids are metabolites found in the cell wall of Mycobacterium tuberculosis, the causative agent of tuberculosis. Their role in pathogenesis remains, however, undefined. Here we describe a novel access to model tetra-O-acylated trehalose sulfate derivatives having simple acyl chains. The trehalose core was regioselectively protected using a tandem procedure with catalytic iron(III) chloride hexahydrate and further desymmetrized. Model chiral fatty acids, prepared by a zinc-mediated cross-coupling, were incorporated into the trehalose core. The enantiomeric excess of the chiral fatty acids has been measured by natural abundance deuterium (NAD) 2D-NMR spectroscopy in a polypeptide based chiral liquid crystal. The synthetic approach established for the model compounds can easily be developed for the preparation of other analogues and natural sulfolipids.

  DOI：

  10.1021/jo4012255
• 作为产物：
  描述：

  1-辛基氯化镁, 1M IN METHF 、 tert-butyl (S)-2-(((trifluoromethyl)sulfonyl)oxy)propanoate 在 zinc(II) chloride 作用下， 以 四氢呋喃 为溶剂， 反应 3.0h， 以98%的产率得到(+)-(2S)-methyl-decanoic acid tert-butyl ester
  参考文献：
  名称：

  Synthesis of a Mycobacterium tuberculosis Tetra-acylated Sulfolipid Analogue and Characterization of the Chiral Acyl Chains Using Anisotropic NAD 2D-NMR Spectroscopy

  摘要：

  Tetra-O-acylated sulfolipids are metabolites found in the cell wall of Mycobacterium tuberculosis, the causative agent of tuberculosis. Their role in pathogenesis remains, however, undefined. Here we describe a novel access to model tetra-O-acylated trehalose sulfate derivatives having simple acyl chains. The trehalose core was regioselectively protected using a tandem procedure with catalytic iron(III) chloride hexahydrate and further desymmetrized. Model chiral fatty acids, prepared by a zinc-mediated cross-coupling, were incorporated into the trehalose core. The enantiomeric excess of the chiral fatty acids has been measured by natural abundance deuterium (NAD) 2D-NMR spectroscopy in a polypeptide based chiral liquid crystal. The synthetic approach established for the model compounds can easily be developed for the preparation of other analogues and natural sulfolipids.

  DOI：

  10.1021/jo4012255

文献信息

• Zinc‐Catalyzed Enantiospecific sp³–sp³ Cross‐Coupling of α‐Hydroxy Ester Triflates with Grignard Reagents
  作者：Christopher Studte、Bernhard Breit

  DOI：10.1002/anie.200800733

  日期：2008.7.7