(E)-2-(4-benzyloxy-3-methoxyphenyl)-5-(3-hydroxypropenyl)-7-methoxybenzofuran | 515814-06-9

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 2-芳基苯并呋喃类黄酮
• 英文名称: (E)-2-(4-benzyloxy-3-methoxyphenyl)-5-(3-hydroxypropenyl)-7-methoxybenzofuran
• 英文别名: (E)-3-[7-methoxy-2-(3-methoxy-4-phenylmethoxyphenyl)-1-benzofuran-5-yl]prop-2-en-1-ol
• CAS: 515814-06-9
• 化学式: C₂₆H₂₄O₅
• 分子量: 416.474
• InChiKey: OKQFFKZVHGXJPV-RMKNXTFCSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.2
• 重原子数：
  31
• 可旋转键数：
  8
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.15
• 拓扑面积：
  61.1
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  (E)-2-(4-benzyloxy-3-methoxyphenyl)-5-(3-hydroxypropenyl)-7-methoxybenzofuran 在 palladium on activated charcoal 吡啶 、 氢气 、 溶剂黄146 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 20.0 ℃ 、101.33 kPa 条件下， 反应 8.33h， 生成 2-(4-hydroxy-3-methoxyphenyl)-5-(3-acetoxypropyl)-7-methoxybenzofuran
  参考文献：
  名称：

  Total Synthesis of Ailanthoidol and Precursor XH14 by Stille Coupling

  摘要：

  Ailanthoidol 1, which can be isolated from Chinese herbal medicine, is achieved in which the longest linear sequence is only six steps in 48% overall yield from commercially available 5-bromo-2-hydroxy-3-methoxybenzaldehyde. The key transformations in the synthesis are the Stille coupling reactions of benzofuranyl bromide with stannanyl compounds. This synthetic strategy can be modified to give access to a variety of different ailanthoidol and XH14 analogues.

  DOI：

  10.1021/jo020653t
• 作为产物：
  描述：

  5-溴-2-羟基-3-甲氧基苯甲醛 在 四(三苯基膦)钯 、 三溴化磷 作用下， 以 1,4-二氧六环 为溶剂， 反应 14.0h， 生成 (E)-2-(4-benzyloxy-3-methoxyphenyl)-5-(3-hydroxypropenyl)-7-methoxybenzofuran
  参考文献：
  名称：

  Total Synthesis of Ailanthoidol and Precursor XH14 by Stille Coupling

  摘要：

  Ailanthoidol 1, which can be isolated from Chinese herbal medicine, is achieved in which the longest linear sequence is only six steps in 48% overall yield from commercially available 5-bromo-2-hydroxy-3-methoxybenzaldehyde. The key transformations in the synthesis are the Stille coupling reactions of benzofuranyl bromide with stannanyl compounds. This synthetic strategy can be modified to give access to a variety of different ailanthoidol and XH14 analogues.

  DOI：

  10.1021/jo020653t

文献信息

• A Novel Strategy for the Synthesis of Benzofuran Skeleton Neolignans:  Application to Ailanthoidol, XH-14, and Obovaten
  作者：Chai-Lin Kao、Ji-Wang Chern

  DOI：10.1021/jo0258960

  日期：2002.9.1

  respectively. 15 and 33 were then cyclized in the presence of either mercury acetate in acetic acid or bromine in chloroform to give 3-chloromercurio- or 3-bromobenzofuran, respectively. The 3-chloromercurio intermediates could be reduced to proton or derivatized to ester or bromide, leading to the synthesis of ailanthoidol, XH-14, and obovaten, respectively. In addition, necleophilic substitution was used

  开发了一种方便且通用的合成苯并呋喃骨架化合物艾蒽酚，XH-14和Obovaten的方法。从香兰素开始，一系列反应以71％的收率得到7。用正丁基锂处理7，然后加入取代的苯甲醛导致形成甲醇11和31。将由11和31氧化而得的取代的二苯甲酮用三甲基甲硅烷基重氮甲烷锂盐处理，分别得到二苯基乙炔15和33。然后在乙酸汞在乙酸中或溴在氯仿中的存在下将15和33环化，分别得到3-氯汞-或3-溴苯并呋喃。3-氯汞中间体可以还原为质子或衍生为酯或溴化物，分别导致合成艾兰醇，XH-14和Obovaten。另外，亲核取代被用于将甲酰基或甲基引入3-溴苯并呋喃衍生物中，从而提供了通往XH-14和Obovaten的替代途径。最终的延伸和脱保护反应以30、15和11％的产率分别提供了所需的艾兰酚，XH-14和obovaten。
• Total Synthesis of Ailanthoidol and Precursor XH14 by Stille Coupling
  作者：Shun-Yu Lin、Chih-Lung Chen、Yean-Jang Lee

  DOI：10.1021/jo020653t

  日期：2003.4.1

  Ailanthoidol 1, which can be isolated from Chinese herbal medicine, is achieved in which the longest linear sequence is only six steps in 48% overall yield from commercially available 5-bromo-2-hydroxy-3-methoxybenzaldehyde. The key transformations in the synthesis are the Stille coupling reactions of benzofuranyl bromide with stannanyl compounds. This synthetic strategy can be modified to give access to a variety of different ailanthoidol and XH14 analogues.