1,6,9,12,15,20,23,24-Octacosa-2,5,16,19-tetraoxocyclooctacosa-3,17-diene | 166380-30-9

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 大环内酯类和类似物
• 英文名称: 1,6,9,12,15,20,23,24-Octacosa-2,5,16,19-tetraoxocyclooctacosa-3,17-diene
• 英文别名: (12Z,26Z)-1,4,7,10,15,18,21,24-octaoxacyclooctacosa-12,26-diene-11,14,25,28-tetrone
• CAS: 166380-30-9
• 化学式: C₂₀H₂₈O₁₂
• 分子量: 460.435
• InChiKey: NNTKGKBDOIQLQA-LOKDLIDFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  -0.6
• 重原子数：
  32
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  142
• 氢给体数：
  0
• 氢受体数：
  12

反应信息

• 作为反应物：
  描述：

  1,6,9,12,15,20,23,24-Octacosa-2,5,16,19-tetraoxocyclooctacosa-3,17-diene 在 2,2,6,6-四甲基哌啶 三乙胺 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 7.0h， 生成 3-(4-Methylsulfonyl-1-thiabutyl)-1,6,9,12,15,20,23,24-octaoxa-2,5,16,19-tetraoxocyclooctacos-17-ene
  参考文献：
  名称：

  Assembly of ion channel mimics from a modular construction set

  摘要：

  Ion channel mimics were assembled from a modular construction set consisting of core units, derived from polycarboxylate 18-crown-6 ethers, wall units, derived from macrocyclic tetraesters, and polar head groups which provide overall amphiphilic character. The preparation of symmetrical and side-discriminated macrocyclic tetraesters from diols and maleic anhydride gave the required macrocycles in low yields by acid-catalyzed esterification, or by carboxylate alkylation. Addition of 1 equiv of 3-mercaptopropanol to the macrocyclic dienes gave the wall unit precursor. Coupling of the walls to the crown ether via esters was achieved by carboxylate alkylation. The syntheses were completed by Michael addition of head group thiolates. Twenty-one candidate ion channels of molecular weight 1600-4800 g/mol were prepared and characterized.

  DOI：

  10.1021/jo00078a026
• 作为产物：
  描述：

  马来酸酐 、 三乙二醇 在 甲烷磺酸 作用下， 生成 1,6,9,12,15,20,23,24-Octacosa-2,5,16,19-tetraoxocyclooctacosa-3,17-diene
  参考文献：
  名称：

  Assembly of ion channel mimics from a modular construction set

  摘要：

  Ion channel mimics were assembled from a modular construction set consisting of core units, derived from polycarboxylate 18-crown-6 ethers, wall units, derived from macrocyclic tetraesters, and polar head groups which provide overall amphiphilic character. The preparation of symmetrical and side-discriminated macrocyclic tetraesters from diols and maleic anhydride gave the required macrocycles in low yields by acid-catalyzed esterification, or by carboxylate alkylation. Addition of 1 equiv of 3-mercaptopropanol to the macrocyclic dienes gave the wall unit precursor. Coupling of the walls to the crown ether via esters was achieved by carboxylate alkylation. The syntheses were completed by Michael addition of head group thiolates. Twenty-one candidate ion channels of molecular weight 1600-4800 g/mol were prepared and characterized.

  DOI：

  10.1021/jo00078a026

文献信息

• Tandem reactions of α-diazo ketones with macrocyclic olefins: diastereoselective synthesis of oxanorbornane fused macrocyclic lactones
  作者：Sengodagounder Muthusamy、Boopathy Gnanaprakasam

  DOI：10.1016/j.tet.2007.02.029

  日期：2007.4

  Tandem cyclization–cycloaddition reactions of α-diazo ketones with macrocyclic olefins in the presence of rhodium(II) acetate catalyst led to the oxanorbornane fused macrocyclic di- or tetralactone ring systems in moderate yield. This forms the first example of 1,3-dipolar cycloaddition reactions with a macrocyclic olefin as a dipolarophile, affording a variety of new oxanorbornane fused macrocycles

  在乙酸铑（II）催化剂的存在下，α-重氮酮与大环烯烃的串联环化-环加成反应可中等收率产生氧杂硼烷烷稠合的大环二或四内酯环体系。这形成了以大环烯烃作为双极性亲和剂进行的1,3-偶极环加成反应的第一个实例，从而提供了具有非对映选择性的各种新的氧杂降冰片烷稠合大环。