5-溴-2-(4-乙氧基苯基)苯并呋喃 | 1374787-42-4

• 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
• 中文名称: 5-溴-2-(4-乙氧基苯基)苯并呋喃
• 英文名称: 5-bromo-2-(4-ethoxyphenyl)benzofuran
• 英文别名: 5-Bromo-2-(4-ethoxyphenyl)-1-benzofuran
• CAS: 1374787-42-4
• 化学式: C₁₆H₁₃BrO₂
• 分子量: 317.182
• InChiKey: AIGZSJIDNLKMHZ-UHFFFAOYSA-N

物化性质

• 沸点：
  420.7±35.0 °C(Predicted)
• 密度：
  1.389±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  22.4
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2,5-dibromobenzofuran 、 三对乙氧基苯基铋 在 palladium diacetate 、 caesium carbonate 、 三苯基膦 作用下， 以 N-甲基吡咯烷酮 为溶剂， 反应 1.0h， 以93%的产率得到5-溴-2-(4-乙氧基苯基)苯并呋喃
  参考文献：
  名称：

  Palladium-catalyzed cross-couplings of functionalized 2-bromobenzofurans for atom-economic synthesis of 2-arylbenzofurans using triarylbismuth reagents

  摘要：

  The palladium catalyzed, atom-economic synthesis of various functionalized 2-arylbenzofurans was achieved through cross-coupling reaction of 2-bromobenzofurans with triarylbismuth reagents. The palladium catalytic protocol is very efficient to furnish various cross-coupled functionalized 2-arylbenzofurnas in high yields using triarylbismuth reagents with three aryl couplings as multi-coupling organometallic nucleophiles in one-pot operation. All the coupling reactions were completed in 1 h short reaction time involving three couplings from triarylbismuths under heating condition. (C) 2012 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2012.03.059

文献信息

• Pd-Catalyzed Tandem Chemoselective Synthesis of 2-Arylbenzofurans using Threefold Arylating Triarylbismuth Reagents
  作者：Maddali L. N. Rao、Deepak N. Jadhav、Priyabrata Dasgupta

  DOI：10.1002/ejoc.201201314

  日期：2013.2

  A tandem chemoselective synthesis of 2-arylbenzofurans was accomplished from o-hydroxy-gem-(dibromovinyl)benzenes and BiAr3 reagents under palladium-catalyzed conditions. This unique and synthetically valuable strategy proceeds through three consecutive coupling reactions involving triarylbismuth reagents and provides 2-arylbenzofuran products in high yields.

  2-芳基苯并呋喃的串联化学选择性合成是在钯催化条件下由邻羟基宝石-(二溴乙烯基)苯和BiAr3试剂完成的。这种独特且具有合成价值的策略通过涉及三芳基铋试剂的三个连续偶联反应进行，并以高产率提供 2-芳基苯并呋喃产品。