1-phenyl-2-(2-phenylethynylphenoxy)butan-1-one | 1346667-98-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1-phenyl-2-(2-phenylethynylphenoxy)butan-1-one
• 英文别名: 1-Phenyl-2-[2-(2-phenylethynyl)phenoxy]butan-1-one；1-phenyl-2-[2-(2-phenylethynyl)phenoxy]butan-1-one
• CAS: 1346667-98-8
• 化学式: C₂₄H₂₀O₂
• 分子量: 340.422
• InChiKey: FCEJWIQTBSYVQL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.3
• 重原子数：
  26
• 可旋转键数：
  7
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-phenyl-2-(2-phenylethynylphenoxy)butan-1-one 在 potassium tert-butylate 作用下， 以 四氢呋喃 为溶剂， 反应 0.5h， 以85%的产率得到3-benzyl-2-ethylbenzofuran
  参考文献：
  名称：

  tert-BuOK-mediated carbanion–yne intramolecular cyclization: synthesis of 2-substituted 3-benzylbenzofurans

  摘要：

  A mild, efficient, and regioselective carbanion-yne intramolecular cyclization mediated by t-BuOK for the synthesis of 2-substituted 3-benzylbenzofurans is developed. It was started from o-iodophenol (1), based on O-alkylation, and the Sonogashira reaction in sequence to produce 2-(2-phenylethynyl-phenoxy)-1-arylalkanones (5). An intramolecular carbanion-yne 5-exo-dig cyclization reaction of 5, which was mediated by t-BuOK, yielded title benzofurans in good yields. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2011.09.144
• 作为产物：
  描述：

  2-(2-iodophenoxy)-1-phenylbutan-1-one 、 苯乙炔 在 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 二异丙胺 作用下， 以 四氢呋喃 为溶剂， 反应 3.0h， 以79%的产率得到1-phenyl-2-(2-phenylethynylphenoxy)butan-1-one
  参考文献：
  名称：

  tert-BuOK-mediated carbanion–yne intramolecular cyclization: synthesis of 2-substituted 3-benzylbenzofurans

  摘要：

  A mild, efficient, and regioselective carbanion-yne intramolecular cyclization mediated by t-BuOK for the synthesis of 2-substituted 3-benzylbenzofurans is developed. It was started from o-iodophenol (1), based on O-alkylation, and the Sonogashira reaction in sequence to produce 2-(2-phenylethynyl-phenoxy)-1-arylalkanones (5). An intramolecular carbanion-yne 5-exo-dig cyclization reaction of 5, which was mediated by t-BuOK, yielded title benzofurans in good yields. (C) 2011 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2011.09.144

文献信息

• tert-BuOK-mediated carbanion–yne intramolecular cyclization: synthesis of 2-substituted 3-benzylbenzofurans
  作者：Po-Yuan Chen、Tzu-Pin Wang、Keng-Shiang Huang、Chai-Lin Kao、Jui-Chi Tsai、Eng-Chi Wang

  DOI：10.1016/j.tet.2011.09.144

  日期：2011.12

  A mild, efficient, and regioselective carbanion-yne intramolecular cyclization mediated by t-BuOK for the synthesis of 2-substituted 3-benzylbenzofurans is developed. It was started from o-iodophenol (1), based on O-alkylation, and the Sonogashira reaction in sequence to produce 2-(2-phenylethynyl-phenoxy)-1-arylalkanones (5). An intramolecular carbanion-yne 5-exo-dig cyclization reaction of 5, which was mediated by t-BuOK, yielded title benzofurans in good yields. (C) 2011 Elsevier Ltd. All rights reserved.