dimethyl 2-(7-methyloct-7-en-3-ynyl)malonate | 1379038-27-3

• 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-(7-methyloct-7-en-3-ynyl)malonate
• 英文别名: Dimethyl 2-(7-methyloct-7-en-3-ynyl)propanedioate
• CAS: 1379038-27-3
• 化学式: C₁₄H₂₀O₄
• 分子量: 252.31
• InChiKey: WVTXPLJIXCTAPS-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  18
• 可旋转键数：
  8
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.57
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  溴苯 、 dimethyl 2-(7-methyloct-7-en-3-ynyl)malonate 在 tris-(dibenzylideneacetone)dipalladium(0) 、 dicyclohexyl(2',4',6'-triisopropyl-[1,1'-biphenyl]-3-yl)phosphine 、 sodium hexamethyldisilazane 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 8.33h， 以90%的产率得到dimethyl 2-(3-methylbut-3-enyl)-3-phenyl-2-cyclopentene-1,1-dicarboxylate
  参考文献：
  名称：

  Synthesis of 1,2-Disubstituted Cyclopentenes by Palladium-Catalyzed Reaction of Homopropargyl-Substituted Dicarbonyl Compounds with Organic Halides via 5-Endo-Dig Cyclization

  摘要：

  Palladium catalysts with bulky biaryl phosphine ligands allow homopropargyl-substituted dicarbonyl compounds to undergo intramolecular addition via a rare 5-endo-dig pathway. C-C bond forming reductive elimination follows the addition to Introduce alkenyl and alkynyl as well as aryl groups by using the corresponding organic halides. The cyclization is versatile enough to be applicable to the synthesis of highly substituted dihydropyrrole and a fused tricyclic compound.

  DOI：

  10.1021/ol301257m
• 作为产物：
  描述：

  8-(2-tetrahydropyranyloxy)oct-5-yn-2-one 在 正丁基锂 、 四溴化碳 、 sodium hydride 、 对甲苯磺酸 、 三苯基膦 作用下， 以 四氢呋喃 、 甲醇 、 正己烷 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 7.5h， 生成 dimethyl 2-(7-methyloct-7-en-3-ynyl)malonate
  参考文献：
  名称：

  Synthesis of 1,2-Disubstituted Cyclopentenes by Palladium-Catalyzed Reaction of Homopropargyl-Substituted Dicarbonyl Compounds with Organic Halides via 5-Endo-Dig Cyclization

  摘要：

  Palladium catalysts with bulky biaryl phosphine ligands allow homopropargyl-substituted dicarbonyl compounds to undergo intramolecular addition via a rare 5-endo-dig pathway. C-C bond forming reductive elimination follows the addition to Introduce alkenyl and alkynyl as well as aryl groups by using the corresponding organic halides. The cyclization is versatile enough to be applicable to the synthesis of highly substituted dihydropyrrole and a fused tricyclic compound.

  DOI：

  10.1021/ol301257m