(Z)-ethyl 3-heptenoate | 79918-79-9

• 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: (Z)-ethyl 3-heptenoate
• 英文别名: ethyl (Z)-hept-3-enoate
• CAS: 79918-79-9
• 化学式: C₉H₁₆O₂
• 分子量: 156.225
• InChiKey: MOTXKEQQXJIDHO-SREVYHEPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  11
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  反式-2-庚酸乙酯 在 六甲基磷酰三胺 、 lithium diisopropyl amide 作用下， 以 四氢呋喃 为溶剂， 反应 0.5h， 以13%的产率得到(E)-ethyl 3-heptenoate
  参考文献：
  名称：

  Stereochemistry of deconjugative alkylation of ester dienolates. Stereospecific total synthesis of the litsenolides

  摘要：

  DOI：

  10.1021/jo00340a041

文献信息

• Taming the Carboxyl Group for Directed Carbometalation-Observations on the Use of Anions, Dianions and Ester Enolates
  作者：Sandy Desrat、Philip J. Gray、Matthew R. Penny、William B. Motherwell

  DOI：10.1002/chem.201403294

  日期：2014.6.23

  Carboxylate anions, dianions and ester enolates provide simultaneous protection and activation for directed carbometalation reactions. Advantage can be taken of the bis‐carbanionic character of the intermediate for further controlled CC bond forming reactions.

  羧酸根阴离子，二价阴离子和酯烯醇盐可为定向的碳金属化反应提供同时的保护和活化。可以利用中间体的双碳负离子特性进一步控制CC键形成反应。
• Palladium-catalyzed Carbonylation of Allylamines. Synthesis of β,γ-unsaturated amides by one-carbon homologation of Allylamines
  作者：Shun-Ichi Murahashi、Yasushi Imada、Koichi Nishimura

  DOI：10.1016/s0040-4020(01)80767-5

  日期：1994.1

  Palladium-catalyzed carbonylation of allylamines under CO (50atm) at 110°C proceeds highly efficiently to give the corresponding β,γ-unsaturated amides. The carbonylation occurs at the less substituted carbon of allyl units to give linear amides with high regioselectivity. The reaction can be rationalized by assuming the mechanism which involves oxidative addition of palladium (0) species to allylamines

  在110°C的CO（50atm）下钯烯丙基胺的羰基催化羰基化反应非常高效，得到相应的β，γ-不饱和酰胺。羰基化发生在烯丙基单元的较少取代的碳上，得到具有高区域选择性的线性酰胺。可以通过假设以下机理来使反应合理化：该机理涉及将钯（0）物种氧化添加到烯丙胺中以生成π-烯丙基钯络合物，插入一氧化碳以生成酰基戊烯物种和酰胺化。
• Palladium(0)-catalyzed alkoxycarbonylation of allyl phosphates and acetates
  作者：Shunichi Murahashi、Yasushi Imada、Yuki Taniguchi、Shinya Higashiura

  DOI：10.1021/jo00058a040

  日期：1993.3

  Palladium-catalyzed alkoxycarbonylation of allyl phosphates under CO (1 atm) at 50-degrees-C proceeds highly efficiently to give the corresponding beta,gamma-unsaturated esters. The carbonylation of geranyl phosphate ((E)-11) under CO (1 atm) at 50-degrees-C gave ethyl ester of homogeranic acid ((E)-12) stereoselectively. The carbonylation takes place at the least substituted allylic positions with inversion of configuration. Typically, the methoxycarbonylation of cis-5-(methoxycarbonyl)-2-cyclohexen-1-yl phosphate (cis-16) gave trans-dimethyl 2-cyclohexene-1,5-dicarboxylate (trans-17) selectively. Alkoxycarbonylation of allyl acetates is performed for the first time in the presence of a catalytic amount of bromide ion. The reaction can be rationalized by assuming the mechanism which involves oxidative addition of palladium(0) species to allyl acetates to give pi-allylpalladium acetate, fast ligand exchange of the acetate with bromide, insertion of carbon monoxide to give acylpalladium species, and alkoxylation.