2-methyl-3-pentyl-5-(2-propyl-1-penten-1-yl)furan | 1219966-23-0

• 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: 2-methyl-3-pentyl-5-(2-propyl-1-penten-1-yl)furan
• 英文别名: 2-Methyl-3-pentyl-5-(2-propylpent-1-enyl)furan
• CAS: 1219966-23-0
• 化学式: C₁₈H₃₀O
• 分子量: 262.436
• InChiKey: KCOUBVWJYWYXFE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.4
• 重原子数：
  19
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.67
• 拓扑面积：
  13.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  (Z)-3-pentyl-7-propyldec-3-en-5-yne-2,7-diol 在 三苯基膦氯金 、 silver trifluoromethanesulfonate 作用下， 以 二氯甲烷 为溶剂， 反应 2.0h， 以54.6 mg的产率得到2-methyl-3-pentyl-5-(2-propyl-1-penten-1-yl)furan
  参考文献：
  名称：

  Synthesis of Polysubstituted Furans Based on a Stepwise Sonogashira Coupling of (Z)-3-Iodoalk-2-en-1-ols with Terminal Propargylic Alcohols and Subsequent Au(I)- or Pd(II)-Catalyzed Cyclization−Aromatization via Elimination of H₂O

  摘要：

  Recently, we have developed highly regio- and stereoselective carbometalation of 2-alkynols and 2,3-allenols. The organometallacyclic intermediates may be trapped with 12 to afford 3-iodoalk-2-en-1-ols. These 3-iodoalk-2-en-1-ols may readily undergo the Sonogashira coupling with terminal propargyl alcohols to form 4-alkyn-2-ene-1,6-diols. Subsequent cycloisomerization in DMA or CH2Cl2 with Au(PPh3)Cl and AgOTf as the catalyst would afford polysubstituted 2-(1-alkenyl)furans; with PdCl2 as the catalyst and the reaction in DMA in the presence of allylic bromides, the same substrates afforded polysubstituted 2-( 1,4-alkadienyl)furans. In both types of catalyzed cyclization reactions, the elimination of H2O promoted the aromatization to form the furan ring. Different alkyl or aryl groups could be introduced into different positions of furans due to the substituent-loading capability of 3-iodoalkenols and diversity of the terminal propargyl alcohols and allylic bromides.

  DOI：

  10.1021/jo100146p