bis(2-phenylethenyl)(phenyl)phosphine | 31239-69-7

• 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: bis(2-phenylethenyl)(phenyl)phosphine
• 英文别名: E-diphenyl(styryl)phosphane；trans,trans-Bis-(2-phenylethenyl)-phenylphosphin；phenyl-bis[(E)-2-phenylethenyl]phosphane
• CAS: 31239-69-7
• 化学式: C₂₂H₁₉P
• 分子量: 314.367
• InChiKey: LJWSZEWKQNXIGC-YWNVXTCZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.5
• 重原子数：
  23
• 可旋转键数：
  5
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为产物：
  描述：

  苯基二氯化磷 、 alkaline earth salt of/the/ methylsulfuric acid 以 四氢呋喃 为溶剂， 以55%的产率得到bis(2-phenylethenyl)(phenyl)phosphine
  参考文献：
  名称：

  Alkenylzirconocene-Mediated Preparation of Alkenylphosphines

  摘要：

  Alkenylphosphines with various substituents were prepared by the reaction of an. alkenylzirconocene with a chlorophosphine. Reactions of (alpha-unsubstituted alkenyl)zirconocenes with Ph2PCl or PhPCl2 gave the corresponding alkenylphosphines in good yields. On the other hand, direct reactions of (a-unsubstituted alkenyl)zirconocenes with Pr2PCl did not proceed. Analogously, (a-substituted alkenyl)zirconocenes did not react with chlorophosphines directly. However, these reactions proceeded in the presence of CuCl affording the corresponding alkenylphosphines as CuCl complexes. Treatment of the copper complexes with Na-2(dtc) (dtc = N,N-diethyldithiocarbamate) or Na4(edta) liberated free alkenylphosphines from the copper centers. The overall protocol could be applicable to preparation of a variety of alkenylphosphines from alkynes via alkenylzirconocene species.

  DOI：

  10.1021/jo071089v

文献信息

• 1,1-Diphosphines and divinylphosphines <i>via</i> base catalyzed hydrophosphination
  作者：N. T. Coles、M. F. Mahon、R. L. Webster

  DOI：10.1039/c8cc05890c

  日期：——

  be reported: these narrow bite angle pro-ligands have been used to great effect as ligands in homogeneous catalysis. We herein demonstrate that terminal alkynes readily undergo double hydrophosphination with HPPh2 and catalytic potassium hexamethyldisilazane (KHMDS) to generate 1,1-diphosphines. A change to H2PPh leads to the formation of P,P-divinyl phosphines.

  催化氢磷酸化成1,1-二膦的途径尚未有报道：这些窄的咬角前配体已在均相催化中作为配体发挥了很大作用。我们在本文中证明末端炔烃易于与HPPh 2和催化的六甲基二硅氮烷钾（KHMDS）进行双重氢磷酸化，以生成1,1-二膦。H 2 PPh的变化导致形成P，P-二乙烯基膦。