Ethynyldiphenylphosphine oxide | 1351165-67-7

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: Ethynyldiphenylphosphine oxide
• 英文别名: 1-(2-Diphenylphosphorylethynyl)-3-iodobenzene
• CAS: 1351165-67-7
• 化学式: C₂₀H₁₄IOP
• 分子量: 428.209
• InChiKey: OZVPWLLHCNZDHK-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.3
• 重原子数：
  23
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  Ethynyldiphenylphosphine oxide 在 potassium tert-butylate 作用下， 以 四氢呋喃 为溶剂， 反应 34.0h， 生成 4-[2-[3-(2-Pyridin-2-ylethynyl)phenyl]ethynyl]benzonitrile
  参考文献：
  名称：

  One-Pot Transformation of Ph₂P(O)-Protected Ethynes: Deprotection Followed by Transition Metal-Catalyzed Coupling

  摘要：

  Ph2P(O)-protected ethynes were successfully transformed to arylethynes in one-pot manner through t-BuOK-catalyzed deprotection followed by Sonogashira coupling with aryl halide. The arylethynes were obtained similarly by Ph2P(O)-deprotection, stannylation of the resulting terminal ethynes, and Migita-Kosugi-Stille coupling. Deprotection followed by intramolecular Eglinton coupling could be carried out in one-pot to provide cyclic butadiynes.

  DOI：

  10.1021/jo402176w
• 作为产物：
  描述：

  乙炔基(二苯基)膦 在 copper(l) iodide 、 四(三苯基膦)钯 、 双氧水 、 二异丙胺 作用下， 以 四氢呋喃 、 水 、 甲苯 为溶剂， 反应 28.0h， 生成 Ethynyldiphenylphosphine oxide
  参考文献：
  名称：

  One-Pot Transformation of Ph₂P(O)-Protected Ethynes: Deprotection Followed by Transition Metal-Catalyzed Coupling

  摘要：

  Ph2P(O)-protected ethynes were successfully transformed to arylethynes in one-pot manner through t-BuOK-catalyzed deprotection followed by Sonogashira coupling with aryl halide. The arylethynes were obtained similarly by Ph2P(O)-deprotection, stannylation of the resulting terminal ethynes, and Migita-Kosugi-Stille coupling. Deprotection followed by intramolecular Eglinton coupling could be carried out in one-pot to provide cyclic butadiynes.

  DOI：

  10.1021/jo402176w

文献信息

• Selective Deprotection of Me₃Si-/Ph₂P(O)-protected Arylalkynes: Methyl Grignard Reagent-promoted Dephosphorylation of Ph₂P(O)-protected Alkynes
  作者：Lifen Peng、Feng Xu、Kenta Shinohara、Akihiro Orita、Junzo Otera

  DOI：10.1246/cl.140579

  日期：2014.10.5

  A Ph2P(O)-protected alkyne underwent dephosphorylation by treatment with MeMgBr in THF with Me3Si-protection untouched. The dephosphorylation followed by a transition-metal-catalyzed coupling of the resulting terminal alkyne with aryl halides was carried out in a one-pot manner to afford the desired coupling product. Selective deprotection of Me3Si-/Ph2P(O)-protected alkynes enabled facile syntheses of expanded π-systems such as cyclic phenyleneethynylenes and unsymmetrically substituted ditriazol.

  一种Ph2P(O)保护的炔烃在THF中用MeMgBr处理后发生去磷酸化，Me3Si保护未受到影响。该去磷酸化后紧接着与芳基卤化物进行的过渡金属催化偶联反应以一锅法进行，从而获得所需的偶联产物。选择性去保护Me3Si-/Ph2P(O)保护的炔烃使得扩展π系统的合成变得简便，例如环状苯乙炔和不对称取代的二三唑。
• Ph2P(O) Group for Protection of Terminal Acetylenes
  作者：Akihiro Orita、Junzo Otera、Xin Yang、Daisuke Matsuo、Yoshinori Suzuma、Jing-Kun Fang、Feng Xu、Shingo Kajiyama、Nagatoshi Koumura、Kohjiro Hara

  DOI：10.1055/s-0030-1261223

  日期：2011.10

  A protecting group Ph2P(O) for terminal ethyne was newly developed. This protecting group can be introduced readily to terminal ethyne by CuI-catalyzed phosphination and subsequent oxidation with H2O2. Ph2P(O)-protected ethynes remained intact in Sonogashira coupling, and their high polarity enabled easy separation of the desired coupling product from by-products. By treatment with t-BuOK, Ph2P(O)-protected

  新开发了末端乙炔保护基Ph 2 P（O）。该保护基可以通过CuI催化的磷酸化并随后用H 2 O 2氧化而容易地引入末端乙炔。在Sonogashira偶联中，Ph 2 P（O）保护的乙炔保持完好无损，并且它们的高极性使得可以轻松将所需的偶联产物与副产物分离。通过用t -BuOK处理，Ph 2 P（O）保护的乙炔转化为相应的末端乙炔。 炔烃-磷酸化-保护基-偶联