5-((2-methoxycarbonyl)ethyl)-7-methoxy-2-(3'-methoxy-4'-hydroxyphenyl)benzofuran | 144735-56-8

• 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: 5-((2-methoxycarbonyl)ethyl)-7-methoxy-2-(3'-methoxy-4'-hydroxyphenyl)benzofuran
• 英文别名: (5-(2-methoxycarbonyl)ethyl)-7-methoxy-2-(3-methoxy-4-hydroxyphenyl)benzofuran；Methyl 3-[2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-1-benzofuran-5-yl]propanoate；methyl 3-[2-(4-hydroxy-3-methoxyphenyl)-7-methoxy-1-benzofuran-5-yl]propanoate
• CAS: 144735-56-8
• 化学式: C₂₀H₂₀O₆
• 分子量: 356.375
• InChiKey: YCPZJIBHKQIZTF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  26
• 可旋转键数：
  7
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  78.1
• 氢给体数：
  1
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  5-((2-methoxycarbonyl)ethyl)-7-methoxy-2-(3'-methoxy-4'-hydroxyphenyl)benzofuran 在 palladium on activated charcoal 吡啶 、 盐酸 、 ammonium hydroxide 、 sodium hydroxide 、 lithium aluminium tetrahydride 、 potassium chloride 、 氢气 作用下， 以 四氢呋喃 、 甲醇 、 水 、 丙酮 为溶剂， 反应 39.17h， 生成 5-(3-hydroxypropyl)-7-methoxy-3-methyl-2-(3'-methoxy-4'-hydroxyphenyl)benzofuran
  参考文献：
  名称：

  Compounds from Danshen. Part 7. Regioselective introduction of carbon-3 substituents to 5-alkyl-7-methoxy-2-phenylbenzo[b]furans: synthesis of a novel adenosine A1 receptor ligand and its derivatives

  摘要：

  By maintaining the balance between the electronic requirements, the stereochemical restrictions as well as the kinetic and thermodynamic factors, the unprecedented regioselective electrophilic aromatic substitution of formyl and nitro groups to carbon-3 of 5-alkyl-7-methoxy-2-phenylbenzo[b]furans have been achieved. Subsequent transformation of the resulting formyl group into methyl, hydroxymethyl, 1-hydroxyethyl, and cyano groups are also described.

  DOI：

  10.1021/jo00052a046
• 作为产物：
  描述：

  5-溴香兰素 在 palladium on activated charcoal 四氢吡咯 、 吡啶 、 ammonium hydroxide 、 盐酸羟胺 、 氢气 、 copper(II) sulfate 作用下， 以 四氢呋喃 、 吡啶 为溶剂， 反应 36.0h， 生成 5-((2-methoxycarbonyl)ethyl)-7-methoxy-2-(3'-methoxy-4'-hydroxyphenyl)benzofuran
  参考文献：
  名称：

  Compounds from Danshen. Part 7. Regioselective introduction of carbon-3 substituents to 5-alkyl-7-methoxy-2-phenylbenzo[b]furans: synthesis of a novel adenosine A1 receptor ligand and its derivatives

  摘要：

  By maintaining the balance between the electronic requirements, the stereochemical restrictions as well as the kinetic and thermodynamic factors, the unprecedented regioselective electrophilic aromatic substitution of formyl and nitro groups to carbon-3 of 5-alkyl-7-methoxy-2-phenylbenzo[b]furans have been achieved. Subsequent transformation of the resulting formyl group into methyl, hydroxymethyl, 1-hydroxyethyl, and cyano groups are also described.

  DOI：

  10.1021/jo00052a046

文献信息

• An alternate method for the synthesis of 2-aryl/alkyl-5-bromo-7-methoxy benzofurans; application to the synthesis of Egonol, Homoegonol, and analogs via Heck reaction
  作者：Kishor R. More、R.S. Mali

  DOI：10.1016/j.tet.2016.09.068

  日期：2016.11

  We herein report the general, versatile, and convenient method for the synthesis of 2-arly/alkyl-5-bromo-7-methoxy benzofurans from easily available o-Vanillin in five steps. These benzofurans was successfully converted into biological active natural products Egonol, Homoegonol, and analogous on applying Heck reaction using ethyl/methyl acrylate in the presence of palladium catalyst.

  我们在此报告了在五个步骤中从容易获得的邻香兰素中合成2-芳基/烷基-5-溴-7-甲氧基苯并呋喃的通用，通用和方便的方法。这些苯并呋喃已成功转化为生物活性天然产物Egonol，Homoegonol，并且类似于在钯催化剂存在下使用乙基丙烯酸乙酯/丙烯酸甲酯进行的Heck反应。
• Compounds from Danshen. Part 7. Regioselective introduction of carbon-3 substituents to 5-alkyl-7-methoxy-2-phenylbenzo[b]furans: synthesis of a novel adenosine A1 receptor ligand and its derivatives
  作者：Zhen Yang、Han Biao Liu、Chi Ming Lee、Hson Mou Chang、Henry N. C. Wong

  DOI：10.1021/jo00052a046

  日期：1992.12

  By maintaining the balance between the electronic requirements, the stereochemical restrictions as well as the kinetic and thermodynamic factors, the unprecedented regioselective electrophilic aromatic substitution of formyl and nitro groups to carbon-3 of 5-alkyl-7-methoxy-2-phenylbenzo[b]furans have been achieved. Subsequent transformation of the resulting formyl group into methyl, hydroxymethyl, 1-hydroxyethyl, and cyano groups are also described.