dimethyl 2-(5-methylhexa-2,3-dienyl)malonate | 1204503-45-6

• 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: dimethyl 2-(5-methylhexa-2,3-dienyl)malonate
• CAS: 1204503-45-6
• 化学式: C₁₂H₁₈O₄
• 分子量: 226.273
• InChiKey: VIVFQKNQHNNIKD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.9
• 重原子数：
  16
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.58
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  dimethyl 2-ethynylcyclopropane-1,1-dicarboxylate 、 异丙基溴化镁 在 copper(l) cyanide 作用下， 以 乙醚 为溶剂， 以82%的产率得到dimethyl 2-(5-methylhexa-2,3-dienyl)malonate
  参考文献：
  名称：

  Synthesis of Enantioenriched Allenes from 1,1-Cyclopropanediesters

  摘要：

  Highly substituted allenes were obtained by the S(N)2' addition of organocuprate reagents on 2-propargyl-1,1-cyclopropanediesters. This new methodology permits the synthesis of highly enantioenriched allenes as the reaction proceeds with retention of the enantiomeric purity of the starting cyclopropane. The use of higher order cuprates was instrumental in obtaining the reported results.

  DOI：

  10.1021/ol902766f

文献信息

• Iron-catalyzed addition of Grignard reagents to activated vinyl cyclopropanes
  作者：Benjamin D. Sherry、Alois Fürstner

  DOI：10.1039/b918818e

  日期：——

  A highly regioselective iron-catalyzed addition of branched primary, secondary or tertiary alkyl Grignard reagents to activated vinyl cyclopropanes is described, which likely proceeds by a direct addition mechanism as opposed to single electron transfer or an iron-allyl based process.

  描述了高区域选择性的铁催化的支链伯，仲或叔烷基格氏试剂向活化的乙烯基环丙烷的加成反应，其可能通过直接加成机理而不是单电子转移或基于铁-烯丙基的方法进行。
• Synthesis of Enantioenriched Allenes from 1,1-Cyclopropanediesters
  作者：Pascal Cérat、Philipp J. Gritsch、Sébastien R. Goudreau、André B. Charette

  DOI：10.1021/ol902766f

  日期：2010.2.5

  Highly substituted allenes were obtained by the S(N)2' addition of organocuprate reagents on 2-propargyl-1,1-cyclopropanediesters. This new methodology permits the synthesis of highly enantioenriched allenes as the reaction proceeds with retention of the enantiomeric purity of the starting cyclopropane. The use of higher order cuprates was instrumental in obtaining the reported results.