4,6-pentacosanedione

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 4,6-pentacosanedione
• 英文别名: 4,6-Pentacosanedione；pentacosane-4,6-dione
• 化学式: C₂₅H₄₈O₂
• 分子量: 380.655
• InChiKey: OHQHRHJGILPHCW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  10.1
• 重原子数：
  27
• 可旋转键数：
  22
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.92
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  丁酰乙酸乙酯 在 四氯化碳 、 乙醇 、 magnesium 、 二甲基亚砜 、 sodium chloride 作用下， 以 乙醚 、 水 为溶剂， 反应 8.0h， 生成 4,6-pentacosanedione
  参考文献：
  名称：

  Composition of lipids from sunflower pollen (Helianthus annuus)

  摘要：

  The contents of the pollen lipids of the sunflower Helianthus annuus are described. The major component is the seco-triterpene helianyl octanoate, followed by new beta-diketones as second major group of compounds. They exhibit a shorter chain length and often other positions of the functional group compared to already known beta-diketones. Of particular note are the 1-phenyl-beta-diketones. not previously reported from nature. Further lipid classes present are related hydroxyketones and diols. Interestingly, new beta-dioxoalkanoic acids are present in the extracts. which most likely are biogenetic precursors of the diketones. Additionally, we investigated the composition of the pollen coat which resembles the total extract, but lacks the dioxoalkanoic acids and certain estolides. (C) 2000 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0031-9422(00)00089-3

文献信息

• Composition of lipids from sunflower pollen (Helianthus annuus)
  作者：Stefan Schulz、Cristian Arsene、Marianne Tauber、Jeremy N McNeil

  DOI：10.1016/s0031-9422(00)00089-3

  日期：2000.6

  The contents of the pollen lipids of the sunflower Helianthus annuus are described. The major component is the seco-triterpene helianyl octanoate, followed by new beta-diketones as second major group of compounds. They exhibit a shorter chain length and often other positions of the functional group compared to already known beta-diketones. Of particular note are the 1-phenyl-beta-diketones. not previously reported from nature. Further lipid classes present are related hydroxyketones and diols. Interestingly, new beta-dioxoalkanoic acids are present in the extracts. which most likely are biogenetic precursors of the diketones. Additionally, we investigated the composition of the pollen coat which resembles the total extract, but lacks the dioxoalkanoic acids and certain estolides. (C) 2000 Elsevier Science Ltd. All rights reserved.