1'-Methyl-2'-propenyl 2-heptynoate

• 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: 1'-Methyl-2'-propenyl 2-heptynoate
• 英文别名: But-3-en-2-yl hept-2-ynoate
• 化学式: C₁₁H₁₆O₂
• 分子量: 180.247
• InChiKey: BNQARWBACMGJFX-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  13
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.55
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1'-Methyl-2'-propenyl 2-heptynoate 在 tris(dibenzylideneacetone)dipalladium(0) chloroform complex lithium bromide 、 copper(ll) bromide 作用下， 以 溶剂黄146 为溶剂， 反应 10.0h， 以82%的产率得到cis-α-(Z)-(1-Bromoethylidene)-β-(bromomethyl)-γ-methyl-γ-butyrolactone
  参考文献：
  名称：

  Palladium-Templated Regio- and Stereoselective Cyclization of 2'-Alkenyl 2-Alkynoates and Its Synthetic Applications

  摘要：

  2'-Alkenyl 2-alkynoates undergo facile stereoselective cyclization to alpha-(haloalkylidene)-gamma-butyrolactones upon treatment with a catalytic amount of palladium complex in the presence of CuX(2) and LiX. When an alkyl group is introduced to the 1'-position of the alkenyl group, unsubstituted 2-propynoates mainly give trans-beta, gamma-disubstituted gamma-lactones, and substituted 2-propynoates afford cis-beta,gamma-disubstituted gamma-lactones. Further elaborations of the halogen atoms and the synthesis of A-factor using this method are exemplified.

  DOI：

  10.1021/jo00110a018
• 作为产物：
  描述：

  3-丁烯-2-醇 、 2-庚炔酸 在 4-二甲氨基吡啶 、 N,N'-二环己基碳二亚胺 作用下， 以 乙醚 为溶剂， 以76%的产率得到1'-Methyl-2'-propenyl 2-heptynoate
  参考文献：
  名称：

  Palladium-Templated Regio- and Stereoselective Cyclization of 2'-Alkenyl 2-Alkynoates and Its Synthetic Applications

  摘要：

  2'-Alkenyl 2-alkynoates undergo facile stereoselective cyclization to alpha-(haloalkylidene)-gamma-butyrolactones upon treatment with a catalytic amount of palladium complex in the presence of CuX(2) and LiX. When an alkyl group is introduced to the 1'-position of the alkenyl group, unsubstituted 2-propynoates mainly give trans-beta, gamma-disubstituted gamma-lactones, and substituted 2-propynoates afford cis-beta,gamma-disubstituted gamma-lactones. Further elaborations of the halogen atoms and the synthesis of A-factor using this method are exemplified.

  DOI：

  10.1021/jo00110a018

文献信息

• Palladium-Templated Regio- and Stereoselective Cyclization of 2'-Alkenyl 2-Alkynoates and Its Synthetic Applications
  作者：Jianguo Ji、Chunming Zhang、Xiyan Lu

  DOI：10.1021/jo00110a018

  日期：1995.3

  2'-Alkenyl 2-alkynoates undergo facile stereoselective cyclization to alpha-(haloalkylidene)-gamma-butyrolactones upon treatment with a catalytic amount of palladium complex in the presence of CuX(2) and LiX. When an alkyl group is introduced to the 1'-position of the alkenyl group, unsubstituted 2-propynoates mainly give trans-beta, gamma-disubstituted gamma-lactones, and substituted 2-propynoates afford cis-beta,gamma-disubstituted gamma-lactones. Further elaborations of the halogen atoms and the synthesis of A-factor using this method are exemplified.