(2Z,4S,10R)-10-Hydroxy-4-(tert-butyldimethylsiloxy)-2-undecenecarboxylic acid | 152897-09-1

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羟基酸及其衍生物
• 英文名称: (2Z,4S,10R)-10-Hydroxy-4-(tert-butyldimethylsiloxy)-2-undecenecarboxylic acid
• CAS: 152897-09-1
• 化学式: C₁₈H₃₆O₄Si
• 分子量: 344.567
• InChiKey: QRZJFXCOGXNCAS-PHHNHVIGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.74
• 重原子数：
  23.0
• 可旋转键数：
  11.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  66.76
• 氢给体数：
  2.0
• 氢受体数：
  3.0

反应信息

• 作为反应物：
  描述：

  (2Z,4S,10R)-10-Hydroxy-4-(tert-butyldimethylsiloxy)-2-undecenecarboxylic acid 在 4-二甲氨基吡啶 、 四丁基氟化铵 、 三乙胺 、 2,6-二氯苯甲酰氯 作用下， 以 四氢呋喃 为溶剂， 反应 22.0h， 生成 (5S,12R)-5-hydroxyy-12-methyl-1-oxa-3-cyclododecen-2-one
  参考文献：
  名称：

  Total synthesis of patulolide C and its homo-, nor, and iso analogs

  摘要：

  The stereospecific total synthesis of the naturally occurring macrolide patulolide C 19Eb as well as its iso, nor, and homo analogs is described by applying the photoinduced rearrangement of enantiomerically pure epoxy diazomethyl ketones 14 to gamma-hydroxy alpha,beta-unsaturated esters 15 as the key step. The required epoxy diazomethyl ketones 14 are obtained by a Sharpless epoxidation of an appropriate allylic alcohol, followed by ruthenium tetraoxide oxidation to an oxiranecarboxylic acid, conversion into a mixed anhydride, and treatment with diazomethane. Macrolide 19Zb, which is a geometrical isomer of 19Eb, turned out to be a diastereomer of natural macrolide isopatulolide C, which implies the 4R,11R configuration for this natural material. X-ray diffraction analyses of 19Ea and 19Eb show that there is a considerable difference in spatial arrangement; particularly, the different torsion angles between the carbonyl and olefinic bonds are note worthy. The conformational behavior of these macrolides is also deduced from the NMR and UV spectra.

  DOI：

  10.1021/jo00077a047
• 作为产物：
  描述：

  (2S,3S,10R)-10-Acetoxy-2,3-epoxyundecan-1-ol 在 4-二甲氨基吡啶 咪唑 、 ruthenium trichloride 、 lithium hydroxide 、 sodium periodate 、 三乙胺 作用下， 以 四氢呋喃 、 四氯化碳 、 乙醚 、 水 、 N,N-二甲基甲酰胺 、 乙腈 为溶剂， 反应 103.5h， 生成 (2Z,4S,10R)-10-Hydroxy-4-(tert-butyldimethylsiloxy)-2-undecenecarboxylic acid
  参考文献：
  名称：

  Total synthesis of patulolide C and its homo-, nor, and iso analogs

  摘要：

  The stereospecific total synthesis of the naturally occurring macrolide patulolide C 19Eb as well as its iso, nor, and homo analogs is described by applying the photoinduced rearrangement of enantiomerically pure epoxy diazomethyl ketones 14 to gamma-hydroxy alpha,beta-unsaturated esters 15 as the key step. The required epoxy diazomethyl ketones 14 are obtained by a Sharpless epoxidation of an appropriate allylic alcohol, followed by ruthenium tetraoxide oxidation to an oxiranecarboxylic acid, conversion into a mixed anhydride, and treatment with diazomethane. Macrolide 19Zb, which is a geometrical isomer of 19Eb, turned out to be a diastereomer of natural macrolide isopatulolide C, which implies the 4R,11R configuration for this natural material. X-ray diffraction analyses of 19Ea and 19Eb show that there is a considerable difference in spatial arrangement; particularly, the different torsion angles between the carbonyl and olefinic bonds are note worthy. The conformational behavior of these macrolides is also deduced from the NMR and UV spectra.

  DOI：

  10.1021/jo00077a047