propan-2-yl (2S,3S,4R)-2-hydroxy-3,4-dimethylhex-5-enoate | 1255763-81-5

• 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: propan-2-yl (2S,3S,4R)-2-hydroxy-3,4-dimethylhex-5-enoate
• CAS: 1255763-81-5
• 化学式: C₁₁H₂₀O₃
• 分子量: 200.278
• InChiKey: VFRIEEGWRJDYPD-UTLUCORTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 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：

  propan-2-yl (2S,3S,4R)-2-hydroxy-3,4-dimethylhex-5-enoate 、 氯乙酸 在 偶氮二甲酸二异丙酯 、 三苯基膦 作用下， 以 四氢呋喃 为溶剂， 反应 3.17h， 以98%的产率得到
  参考文献：
  名称：

  (−)-Lytophilippine A: Synthesis of a C1−C18 Building Block

  摘要：

  The convergent enantioselective synthesis of a protected C1-C18 building block for the total synthesis of (-)-lytophilippine A was achieved. A catalytic asymmetric Gosteli-Claisen rearrangement and an Evans aldol reaction served as key C/C-connecting transformations during the assembling of the C1-C7 subunit (10 steps from 4, 29%). The synthesis of the C8-C18 segment was achieved utilizing D-galactose as inexpensive ex-chiral-pool starting material (15 steps, 15%). The merger of the subunits was accomplished by a remarkably efficient sequence consisting of esterification and ring-closing metathesis (five steps, 56%).

  DOI：

  10.1021/ol1023008
• 作为产物：
  描述：

  propan-2-yl (3S,4R)-3,4-dimethyl-2-oxohex-5-enoate 在 (R)-2-甲基-CBS-恶唑硼烷 、 dimethyl sulfide borane 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 0.33h， 生成 propan-2-yl (2S,3S,4R)-2-hydroxy-3,4-dimethylhex-5-enoate 、
  参考文献：
  名称：

  (−)-Lytophilippine A: Synthesis of a C1−C18 Building Block

  摘要：

  The convergent enantioselective synthesis of a protected C1-C18 building block for the total synthesis of (-)-lytophilippine A was achieved. A catalytic asymmetric Gosteli-Claisen rearrangement and an Evans aldol reaction served as key C/C-connecting transformations during the assembling of the C1-C7 subunit (10 steps from 4, 29%). The synthesis of the C8-C18 segment was achieved utilizing D-galactose as inexpensive ex-chiral-pool starting material (15 steps, 15%). The merger of the subunits was accomplished by a remarkably efficient sequence consisting of esterification and ring-closing metathesis (five steps, 56%).

  DOI：

  10.1021/ol1023008

文献信息

• (−)-Lytophilippine A: Synthesis of a C1−C18 Building Block
  作者：Annika Gille、Martin Hiersemann

  DOI：10.1021/ol1023008

  日期：2010.11.19

  The convergent enantioselective synthesis of a protected C1-C18 building block for the total synthesis of (-)-lytophilippine A was achieved. A catalytic asymmetric Gosteli-Claisen rearrangement and an Evans aldol reaction served as key C/C-connecting transformations during the assembling of the C1-C7 subunit (10 steps from 4, 29%). The synthesis of the C8-C18 segment was achieved utilizing D-galactose as inexpensive ex-chiral-pool starting material (15 steps, 15%). The merger of the subunits was accomplished by a remarkably efficient sequence consisting of esterification and ring-closing metathesis (five steps, 56%).