2-ethyl-3-phenylbenzofuran | 1186642-36-3

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 英文名称: 2-ethyl-3-phenylbenzofuran
• 英文别名: 2-Ethyl-3-phenyl-1-benzofuran
• CAS: 1186642-36-3
• 化学式: C₁₆H₁₄O
• 分子量: 222.287
• InChiKey: FYPVOSXRLQMCDR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.8
• 重原子数：
  17
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  13.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  2-phenoxy-1-phenylbutan-1-one 在 甲烷磺酸 、 四磷十氧化物 作用下， 以95%的产率得到2-ethyl-3-phenylbenzofuran
  参考文献：
  名称：

  由伊顿试剂介导的 α-苯氧基酮环化脱水合成苯并呋喃

  摘要：

  由伊顿试剂（五氧化二磷-甲磺酸）促进的 α-苯氧基酮的环脱水用于在温和条件下以中等至优异的产率制备 3-取代或 2,3-二取代的苯并呋喃。该方法提供了从容易获得的起始材料（如苯酚和 α-溴酮）中轻松获得苯并呋喃的途径。反应效率高，这归功于伊顿试剂良好的反应性和流动性。该反应可用于制备萘并呋喃香豆素、苯并噻吩和苯并吡喃。

  DOI：

  10.1177/1747519820907244

文献信息

• Palladium catalyzed isomerization of alkenes: a pronounced influence of an o-phenol hydroxyl group
  作者：Jinmin Fan、Changfeng Wan、Qiang Wang、Linfeng Gao、Xiaoqi Zheng、Zhiyong Wang

  DOI：10.1039/b907426k

  日期：——

  A novel palladium catalyzed isomerization of alkenes has been found, where an ortho-phenol hydroxyl group has a pronounced influence on the isomerization.

  已经发现了新型的钯催化的烯烃的异构化，其中邻苯酚羟基对异构化具有显着影响。
• Dehydrative condensation of carbonyls with non-acidic methylenes enabled by light: synthesis of benzofurans
  作者：Wenbo Liu、Ning Chen、Xiaobo Yang、Lu Li、Chao-Jun Li

  DOI：10.1039/c6cc07626b

  日期：——

  Condensation of carbonyls with non-acidic methylenes such as those adjacent to heteroatoms and allylic types to generate C=C bonds is challenging but highly desirable. Inventing novel methods that can accomplish...

  羰基与非酸性亚甲基（例如与杂原子和烯丙基类型相邻的亚甲基）缩合生成C = C键是具有挑战性的，但非常需要。发明新颖的方法可以完成...
• Regioselective Transition Metal-Free Catalytic Ring Opening of 2<i>H</i>-Azirines by Phenols and Naphthols; One-Pot Access to Benzo- and Naphthofurans
  作者：Arnab Roy、Subrata Biswas、Surajit Duari、Srabani Maity、Abhishek Kumar Mishra、Aguinaldo R. de Souza、Asma M. Elsharif、Nelson H. Morgon、Srijit Biswas

  DOI：10.1021/acs.joc.3c01266

  日期：2023.11.17

  naphthofuran derivatives are synthesized from readily available phenols and naphthols. Regioselective ring openings of 2H-azirine followed by in situ aromatization using a catalytic amount of Brønsted acid have established the novelty of the methodology. The involvement of a series of 2H-azirines with a variety of phenols, 1-naphthols, and 2-naphthols showed the generality of the protocol. In-depth

  苯并呋喃和萘并呋喃衍生物是由容易获得的酚和萘酚合成的。 2 H-氮丙啶的区域选择性开环，然后使用催化量的布朗斯台德酸进行原位芳构化，确立了该方法的新颖性。一系列 2 H-氮丙啶与各种酚、1-萘酚和 2-萘酚的参与显示了该方案的通用性。深入的密度泛函理论计算揭示了模型反应的中间体和过渡态能量的反应机理。还通过计算机建模提出了该机制的替代途径。
• Palladium-Catalyzed Direct Arylation of Polysubstituted Benzofurans
  作者：Amandine Carrër、Dimitri Brinet、Jean-Claude Florent、Patricia Rousselle、Emmanuel Bertounesque

  DOI：10.1021/jo202060k

  日期：2012.2.3

  An efficient access to 2-substituted 3-arylbenzofurans through a palladium-catalyzed C3 direct arylation of 2-substituted benzofurans with aryl bromides is described. The scope and limitation of this reaction was studied. The method tolerates a variety of functional groups on the aryl halide and has been successfully extended to polysubstituted benzofurans to obtain the corresponding 3-arylbenzofurans with good to excellent yields.
• Synthesis of benzofurans from the cyclodehydration of α-phenoxy ketones mediated by Eaton’s reagent
  作者：Zhanwei Ma、Min Zhou、Lin Ma、Min Zhang

  DOI：10.1177/1747519820907244

  日期：2020.7

  acid) is used to prepare 3-substituted or 2,3-disubstituted benzofurans with moderate to excellent yields under mild conditions. The method provides a facile access to benzofurans from readily available starting materials such as phenols and α-bromo ketones. The reaction is highly efficient, which is attributed to the good reactivity and fluidity of Eaton’s reagent. The reaction can be applied to prepare

  由伊顿试剂（五氧化二磷-甲磺酸）促进的 α-苯氧基酮的环脱水用于在温和条件下以中等至优异的产率制备 3-取代或 2,3-二取代的苯并呋喃。该方法提供了从容易获得的起始材料（如苯酚和 α-溴酮）中轻松获得苯并呋喃的途径。反应效率高，这归功于伊顿试剂良好的反应性和流动性。该反应可用于制备萘并呋喃香豆素、苯并噻吩和苯并吡喃。