dimethyl 2-(4-pyrrolidinobenzylidene)malonate | 713535-07-0

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂酸及其衍生物
• 英文名称: dimethyl 2-(4-pyrrolidinobenzylidene)malonate
• 英文别名: Dimethyl 2-[(4-pyrrolidin-1-ylphenyl)methylidene]propanedioate
• CAS: 713535-07-0
• 化学式: C₁₆H₁₉NO₄
• 分子量: 289.331
• InChiKey: VGIFDWZCNACPIH-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  21
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  55.8
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  dimethyl 2-(4-pyrrolidinobenzylidene)malonate 在 四氯化锡 、 sodium hydride 作用下， 以 硝基甲烷 、 二甲基亚砜 、 mineral oil 为溶剂， 反应 3.08h， 生成 (2RS,5RS)-tetramethyl 2,5-bis(4-pyrrolidinophenyl)cyclohexane-1,1,4,4-tetracarboxylate
  参考文献：
  名称：

  (3 + 3)-Cyclodimerization of Donor–Acceptor Cyclopropanes. Three Routes to Six-Membered Rings

  摘要：

  The ability of donor acceptor cyclopropanes to (3 + 3)-cyclodimerize is disclosed. It has been found that Lewis acid-induced transformations of 2-(hetero)arylcyclopropane-1,1-dicarboxylates containing electron-abundant aromatic substituents led to the construction of six-membered cyclic systems. Depending on the substrate properties and the Lewis acid applied, three types of products can be obtained: (1) 1,4-diarylcyclohexanes, (2) 1-aryl-1,2,3,4-tetrahydronaphthalenes, and (3) 9,10-dihydroanthracenes.

  DOI：

  10.1021/jo201612w

文献信息

• [3+2] Cyclodimerization of 2-arylcyclopropane-1,1-diesters. Lewis acid induced reversion of cyclopropane umpolung
  作者：Alexey O. Chagarovskiy、Olga A. Ivanova、Ekaterina M. Budynina、Igor V. Trushkov、Mikhail Ya. Melnikov

  DOI：10.1016/j.tetlet.2011.06.059

  日期：2011.8

  A novel Lewis acid catalyzed [3+2] cyclodimerization of 2-arylcyclopropane-1,1-dicarboxylates is reported. It is the first example of a reaction wherein a donor-acceptor cyclopropane provides two carbons in a newly formed ring. The described cyclodimerization represents a general convenient approach to polyfunctionalized cyclopentanes. (C) 2011 Elsevier Ltd. All rights reserved.