2-(para-diisopropylphosphinophenyl)-1,3-dioxane | 923035-25-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 二恶烷
• 英文名称: 2-(para-diisopropylphosphinophenyl)-1,3-dioxane
• 英文别名: [4-(1,3-Dioxan-2-yl)phenyl]di(propan-2-yl)phosphane；[4-(1,3-dioxan-2-yl)phenyl]-di(propan-2-yl)phosphane
• CAS: 923035-25-0
• 化学式: C₁₆H₂₅O₂P
• 分子量: 280.347
• InChiKey: LYTVBALBMJNMJL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.62
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  chloro(1,5-cyclooctadiene)rhodium(I) dimer 、 2-(para-diisopropylphosphinophenyl)-1,3-dioxane 以 二氯甲烷 为溶剂， 以76%的产率得到chloro(cyclooctadiene)[2-(para-diisopropylphosphinophenyl)-1,3-dioxane]rhodium(I)
  参考文献：
  名称：

  Phosphino-functionalised acetals of polyvinyl alcohol as the matrix for the immobilisation of Rh-based pre-catalysts for interfacial catalysis

  摘要：

  Use of polyvinyl alcohol (PVA) to support the immobilisation of phosphines shall be presented. Phosphino functionalisation is introduced in the polymer by a one-step transacetalation reaction and high acetalation degrees are reached. By complexation of the phosphino groups to a [(COD)RhCl] complex fragment, [Rh]-modified polymers are obtained with Rh contents of higher than 15% and the transition metal in a defined molecular environment. The phosphino or [Rh]-modified PVAs are characterised unambiguously by comparing their spectroscopic data with those of model compounds, the syntheses of which are reported as well. Use of the [Rh]-modified polymers as pre-catalysts will be presented with the hydroformylation of 1-octene being taken as an example. It leads to a selectivity in the product distribution that is identical to that of the model complexes. Recycling experiments were performed and the catalyst rest state on the polymer was identified after 10 consecutive runs. Adsorption of the [Rh]-modified PVA on an inorganic support leads to the formation of stable polymer layers on its surface, which cannot be mobilised by extraction with organic solvents. The stability of these layers, together with their tuneable polarity, allow for their application in interfacial catalysis comparable to SAPC or SILC. (c) 2006 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.molcata.2005.12.044

文献信息

• Phosphino-functionalised acetals of polyvinyl alcohol as the matrix for the immobilisation of Rh-based pre-catalysts for interfacial catalysis
  作者：Martin Ahlmann、Olaf Walter、Melany Frank、Wilhelm Habicht

  DOI：10.1016/j.molcata.2005.12.044

  日期：2006.4

  Use of polyvinyl alcohol (PVA) to support the immobilisation of phosphines shall be presented. Phosphino functionalisation is introduced in the polymer by a one-step transacetalation reaction and high acetalation degrees are reached. By complexation of the phosphino groups to a [(COD)RhCl] complex fragment, [Rh]-modified polymers are obtained with Rh contents of higher than 15% and the transition metal in a defined molecular environment. The phosphino or [Rh]-modified PVAs are characterised unambiguously by comparing their spectroscopic data with those of model compounds, the syntheses of which are reported as well. Use of the [Rh]-modified polymers as pre-catalysts will be presented with the hydroformylation of 1-octene being taken as an example. It leads to a selectivity in the product distribution that is identical to that of the model complexes. Recycling experiments were performed and the catalyst rest state on the polymer was identified after 10 consecutive runs. Adsorption of the [Rh]-modified PVA on an inorganic support leads to the formation of stable polymer layers on its surface, which cannot be mobilised by extraction with organic solvents. The stability of these layers, together with their tuneable polarity, allow for their application in interfacial catalysis comparable to SAPC or SILC. (c) 2006 Elsevier B.V. All rights reserved.