(R,E)-2-methyl-4-phenylpent-3-enoic acid | 950489-14-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (R,E)-2-methyl-4-phenylpent-3-enoic acid
• 英文别名: (E,2R)-2-methyl-4-phenylpent-3-enoic acid
• CAS: 950489-14-2
• 化学式: C₁₂H₁₄O₂
• 分子量: 190.242
• InChiKey: HLILRIKMPVELJU-AAXQSMANSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  14
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (R,E)-2-methyl-4-phenylpent-3-enoic acid 在 偶氮二异丁腈 、 三正丁基氢锡 作用下， 以 二氯甲烷 、 苯 为溶剂， 反应 15.0h， 生成 (3R,5R)-3,5-dimethyl-5-phenyldihydrofuran-2(3H)-one
  参考文献：
  名称：

  Preparation of enantiopure 3,5,5-trialkyl-γ-butyrolactones by diastereospecific 5-endo halo lactonizations

  摘要：

  A new preparation of 3,5,5-trialkyl-gamma-butyrolactones of defined absolute configuration is reported. This method involves the diastereoselective alkylation of 3,4-ethylenic acids after incorporation of a chiral Evans auxiliary, and then after separation of the two diastereomers and hydrolysis of the auxiliary, stereospecific halo lactonizations. This method was applied to the preparation of a natural product, present in a sponge. (c) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2007.05.028
• 作为产物：
  描述：

  (R)-3-((R,E)-2-methyl-4-phenylpent-3-enoyl)-4-phenyloxazolidin-2-one 在 lithium hydroxide 、 双氧水 作用下， 以 四氢呋喃 为溶剂， 反应 2.0h， 生成 (R,E)-2-methyl-4-phenylpent-3-enoic acid
  参考文献：
  名称：

  Preparation of enantiopure 3,5,5-trialkyl-γ-butyrolactones by diastereospecific 5-endo halo lactonizations

  摘要：

  A new preparation of 3,5,5-trialkyl-gamma-butyrolactones of defined absolute configuration is reported. This method involves the diastereoselective alkylation of 3,4-ethylenic acids after incorporation of a chiral Evans auxiliary, and then after separation of the two diastereomers and hydrolysis of the auxiliary, stereospecific halo lactonizations. This method was applied to the preparation of a natural product, present in a sponge. (c) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2007.05.028

文献信息

• Preparation of Imino Lactones by Electrophilic Cyclization of β,γ-Unsaturated Hydroxamates: Formation of 3-Cyanoprop-2-en-1-ones through Fragmentation Reactions
  作者：Houssam Trabulsi、Régis Guillot、Gérard Rousseau

  DOI：10.1002/ejoc.201000376

  日期：2010.10

  Treatment of γ-disubstituted β,γ-unsaturated hydroxamates with bis(collidine)bromine(I) hexafluorophosphate led mainly to the formation of cyclic bromo imidates - the thermodynamic products. Unsaturated cyclic imidates were then obtained by treatment with triethylamine. With γ-aryl β,γ-unsaturated hydroxamates, the corresponding cyclic bromo imidates were also obtained. On treatment with triethylamine

  用双（可力丁）溴（I）六氟磷酸酯处理 γ-二取代的 β,γ-不饱和异羟肟酸酯主要导致环状溴亚胺酸酯（热力学产物）的形成。然后通过用三乙胺处理获得不饱和环状亚胺酸酯。用γ-芳基β,γ-不饱和异羟肟酸酯，也得到了相应的环状溴亚胺酸酯。然而，在用三乙胺处理时，这些化合物通过裂解反应以良好的产率形成 3-cyanoprop-2-en-1-ones。