ethyl (Z)-4,4-dimethyl-pent-2-enoate | 136265-15-1

• 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: ethyl (Z)-4,4-dimethyl-pent-2-enoate
• 英文别名: ethyl (Z)-4,4-dimethyl-2-pentenoate；ethyl (Z)-4,4-dimethylpent-2-enoate
• CAS: 136265-15-1
• 化学式: C₉H₁₆O₂
• 分子量: 156.225
• InChiKey: MNBODUCODDEXEE-SREVYHEPSA-N

物化性质

• 沸点：
  183.1±9.0 °C(Predicted)
• 密度：
  0.896±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.15
• 重原子数：
  11.0
• 可旋转键数：
  2.0
• 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：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为产物：
  描述：

  丙炔酸乙酯 在 sodium tetrahydroborate 作用下， 以 四氢呋喃 、 乙醇 为溶剂， 反应 0.83h， 生成 ethyl (Z)-4,4-dimethyl-pent-2-enoate
  参考文献：
  名称：

  Diastereoselective synthesis of α,β-unsaturated systems

  摘要：

  Functionalized Z-vinylic tellurides were used in substitution reactions with lower order cyanocuprates leading to alpha, beta-unsaturated ketones and esters in good yields. In the case of acyclic tellurides, the product was obtained in high diastereoselectivity. The control of the stereoselectivity was achieved by simple change of the reaction temperature. (C) 2005 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2005.01.025

文献信息

• Triethylborane Induced Stereoselective Radical Addition of R₃SiH to Acetylenes and Stereoselective Reduction of Alkenyl Iodides with Tris(trimethylsilyl)silane
  作者：Katsukiyo Miura、Koichiro Oshima、Kiitiro Utimoto

  DOI：10.1246/bcsj.66.2356

  日期：1993.8

  Triethylborane induced radical addition of various organosilanes (R3SiH) to acetylenes has been studied. Among them, tris(trimethylsilyl)silane (TTMSS) proved to be the best reagent for the hydrosilylation of acetylenic compounds in terms of yield and stereoselectivity. For instance, reaction of 1-dodecyne with TTMSS at room temperature for 3 h under Et3B catalyst provided (Z)-1-tris(trimethylsilyl)silyl-1-dodecene

  已经研究了三乙基硼烷引发的各种有机硅烷 (R3SiH) 与乙炔的自由基加成。其中，就产率和立体选择性而言，三（三甲基甲硅烷基）硅烷（TTMSS）被证明是炔类化合物氢化硅烷化的最佳试剂。例如，1-十二炔与 TTMSS 在室温下在 Et3B 催化剂下反应 3 小时，选择性地提供了 (Z)-1-三(三甲基甲硅烷基)甲硅烷基-1-十二烯，产率为 98%。已经研究了用 TTMSS-Et3B 或 n-Bu3SnH-Et3B 还原烯基碘的立体化学过程。在室温下用 TTMSS-Et3B 处理 1-二甲基苯基甲硅烷基-2-碘-1-十二烯，选择性地提供 (Z)-1-二甲基苯基甲硅烷基-1-十二烯 (Z/E > 30/1)。另一方面，用 n-Bu3SnH-Et3B 处理只得到 (E)-1-二甲基苯基甲硅烷基-1-十二烯。
• Jalander, Lars; Iambolieva, Kostadinka; Sundstroem, Viola, Acta chemica Scandinavica. Series B: Organic chemistry and biochemistry, 1980, vol. 34, # 10, p. 715 - 720
  作者：Jalander, Lars、Iambolieva, Kostadinka、Sundstroem, Viola

  DOI：——

  日期：——
• Diastereoselective synthesis of α,β-unsaturated systems
  作者：Priscila Castelani、João V. Comasseto

  DOI：10.1016/j.tet.2005.01.025

  日期：2005.2

  Functionalized Z-vinylic tellurides were used in substitution reactions with lower order cyanocuprates leading to alpha, beta-unsaturated ketones and esters in good yields. In the case of acyclic tellurides, the product was obtained in high diastereoselectivity. The control of the stereoselectivity was achieved by simple change of the reaction temperature. (C) 2005 Elsevier Ltd. All rights reserved.