(E,4S,5S)-ethyl 5-hydroxy-4,6-dimethylhept-2-enoate | 914366-89-5

• 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: (E,4S,5S)-ethyl 5-hydroxy-4,6-dimethylhept-2-enoate
• 英文别名: ethyl (4S,5S)-E-4,6-dimethyl-5-hydroxy-hept-2-eneoate；ethyl (E,4S,5S)-5-hydroxy-4,6-dimethylhept-2-enoate
• CAS: 914366-89-5
• 化学式: C₁₁H₂₀O₃
• 分子量: 200.278
• InChiKey: DRGCTKWLOHCEIR-BZGQNNPNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.2
• 重原子数：
  14
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.73
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (E,4S,5S)-ethyl 5-hydroxy-4,6-dimethylhept-2-enoate 在 三甲基氯硅烷 、 Dimethylzinc 、 dilithium dimethylcyanocuprate 、 scandium tris(trifluoromethanesulfonate) 作用下， 以 四氢呋喃 、 乙醚 、 甲苯 、 乙腈 为溶剂， 反应 20.0h， 生成 ethyl (3R*,4R*,5R*)-3-(dimesitylsilyl)-5-(2,2-dimethylpropionyloxy)-4,6-dimethylhept-2-eneoate
  参考文献：
  名称：

  1-Oxa-2,2-(二甲苯基)硅杂环戊烷缩醛在多元醇立体选择性合成中的应用

  摘要：

  我们已经开发了一种立体选择性合成 1-oxa-2,2-（二甲苯基）硅杂环戊烷缩醛的路线，该缩醛是合成高度官能化的 1,3-二醇的中间体。该路线涉及氢化硅烷基阴离子的非对映选择性共轭加成反应、随后的非对映选择性烯醇化物烷基化和氟化物催化的分子内氢化硅烷化反应以提供氧硅杂环戊烷缩醛。高度选择性的亲核取代反应，然后氧化 C-Si 键，生成所需的多元醇。

  DOI：

  10.1021/ja027335w
• 作为产物：
  描述：

  ethyl (E,4S,5S)-4,5-dihydroxy-4,6-dimethylhept-2-enoate 在 tris(dibenzylideneacetone)dipalladium(0) chloroform complex 吡啶 、 甲酸 、 三乙胺 、 三苯基膦 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 2.66h， 生成 (E,4S,5S)-ethyl 5-hydroxy-4,6-dimethylhept-2-enoate
  参考文献：
  名称：

  De Novo Synthesis of 2-Substituted syn-1,3-Diols via an Iterative Asymmetric Hydration Strategy

  摘要：

  The enantioselective syntheses of several protected 4-substituted syn-3,5-dihydroxy carboxylic esters have been achieved from the corresponding achiral (E,E)- or (E,Z)-1,3-dienoates. The route relies upon an enantio- and regioselective Sharpless dihydroxylation and a palladium-catalyzed reduction to form gamma-substituted delta-hydroxy-1-enoates. The resulting delta-hydroxy-1-enoates are subsequently converted into benzylidene-protected 4-substituted syn-3,5-dihydroxy carboxylic esters in one step. The benzylidene-protected 3,5-dihydroxy carboxylic esters are produced in good overall yields (20-54%) and high enantiomeric excess (73- 97% ee).

  DOI：

  10.1021/jo061200h

文献信息

• Formal Total Synthesis of RK-397 via an Asymmetric Hydration and Iterative Allylation Strategy
  作者：Haibing Guo、Matthew S. Mortensen、George A. O’Doherty

  DOI：10.1021/ol801055b

  日期：2008.7.17

  A formal total synthesis of the oxopentaene macrolide antibiotic RK-397 has been achieved. Nine stereocenters were established by a combination of allylation and our asymmetric hydration reactions and a 1,5 anti-selective aldol reaction. The synthesis proceeded in 19 steps from simple achiral conjugated dienoates.

  氧戊烯大环内酯类抗生素RK-397的正式合成已经完成。通过烯丙基化和我们的不对称水合反应和1,5反选择性羟醛反应的组合建立了九个立体中心。由简单的非手性共轭二烯酸酯以19个步骤进行合成。
• Utilization of 1-Oxa-2,2-(dimesityl)silacyclopentane Acetals in the Stereoselective Synthesis of Polyols
  作者：Sharon A. Powell、Jason M. Tenenbaum、K. A. Woerpel

  DOI：10.1021/ja027335w

  日期：2002.10.1

  developed a route for the stereoselective synthesis of 1-oxa-2,2-(dimesityl)silacyclopentane acetals, intermediates in the synthesis of highly functionalized 1,3-diols. This route involves a diastereoselective conjugate addition reaction of a hydrosilyl anion, a subsequent diastereoselective enolate alkylation, and a fluoride-catalyzed intramolecular hydrosilylation reaction to afford the oxasilacyclopentane

  我们已经开发了一种立体选择性合成 1-oxa-2,2-（二甲苯基）硅杂环戊烷缩醛的路线，该缩醛是合成高度官能化的 1,3-二醇的中间体。该路线涉及氢化硅烷基阴离子的非对映选择性共轭加成反应、随后的非对映选择性烯醇化物烷基化和氟化物催化的分子内氢化硅烷化反应以提供氧硅杂环戊烷缩醛。高度选择性的亲核取代反应，然后氧化 C-Si 键，生成所需的多元醇。
• De Novo Synthesis of 2-Substituted <i>syn</i>-1,3-Diols via an Iterative Asymmetric Hydration Strategy
  作者：Md. Moinuddin Ahmed、Matthew S. Mortensen、George A. O'Doherty

  DOI：10.1021/jo061200h

  日期：2006.9.1

  The enantioselective syntheses of several protected 4-substituted syn-3,5-dihydroxy carboxylic esters have been achieved from the corresponding achiral (E,E)- or (E,Z)-1,3-dienoates. The route relies upon an enantio- and regioselective Sharpless dihydroxylation and a palladium-catalyzed reduction to form gamma-substituted delta-hydroxy-1-enoates. The resulting delta-hydroxy-1-enoates are subsequently converted into benzylidene-protected 4-substituted syn-3,5-dihydroxy carboxylic esters in one step. The benzylidene-protected 3,5-dihydroxy carboxylic esters are produced in good overall yields (20-54%) and high enantiomeric excess (73- 97% ee).