1,3-bis(4-pyridyl)tetramethyldisiloxane | 634595-31-6

• 分子结构分类: 有机化合物 - 有机金属化合物 - 有机类金属化合物
• 英文名称: 1,3-bis(4-pyridyl)tetramethyldisiloxane
• 英文别名: 1,3-dis(4-pyridyl)tetramethyldisiloxane；[Dimethyl(pyridin-4-yl)silyl]oxy-dimethyl-pyridin-4-ylsilane
• CAS: 634595-31-6
• 化学式: C₁₄H₂₀N₂OSi₂
• 分子量: 288.497
• InChiKey: YUOBJQMMPCRYLB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.02
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.29
• 拓扑面积：
  35
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  正庚烷 、 1,3-bis(4-pyridyl)tetramethyldisiloxane 、 (N,N,N',N'-tetramethylethylenediamine)Pd(CF3SO3)2 以 丙酮 为溶剂， 生成 heptane*[(N,N,N',N'-tetramethylethylenediamine)Pd(1,3-bis(4-pyridyl)tetramethyldisiloxane)]2(CF3SO3)4
  参考文献：
  名称：

  伪轮烷型正构烃容器。含1,3-双（4-吡啶基）四甲基二硅氧烷的离子钯（ii）配合物的金属环二聚体†

  摘要：

  一种不常见的“金属环二聚体中的伪轮烷烷正构烷烃”系统C n H 2 n +2 @ [（Me 4 en）Pd（L）] 2（CF 3 SO 3）4（n = 5，6，7 ; Me 4 en =N，N，N '，N'-四甲基乙二胺; L =1,3-双（4-吡啶基）四甲基二硅氧烷），已构建。该系统是通过适当的尺寸效应实现的第一个假轮烷型石油容器。

  DOI：

  10.1039/c1dt10980d
• 作为产物：
  描述：

  4-溴吡啶盐酸盐 在 palladium hydroxide, 20 wt% on carbon 、 水 、 sodium carbonate 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 7.5h， 生成 1,3-bis(4-pyridyl)tetramethyldisiloxane
  参考文献：
  名称：

  Bis(pyridyl)siloxane–Pd(II) complex catalyzed oxidation of alcohol to aldehyde: Effect of ligand tethering on catalytic activity and deactivation behavior

  摘要：

  A series of oligomeric methylsiloxane compounds functionalized with pyridyl groups was synthesized and used as ligands in the aerobic Pd(OAc)(2)-catalyzed oxidation of benzyl alcohol to benzaldehyde at 353 K. The effect of tethering two pyridine ligands at the terminal positions of linear siloxanes of varying length was systematically investigated, as was the effect of the attachment point of the pyridine ring (meta or para). It was found that meta-substituted pyridylsiloxanes were generally more effective in protecting the catalyst against Pd agglomeration. For this purpose, the optimal meta-pyridylsiloxane ligands had 4-6 silicon atoms or 10 silicon atoms for para-pyridylsiloxane ligands. The metal-ligand binding properties were used to interpret the catalytic behavior, and the ability of the catalyst stability correlated with ability of the bis-pyridyl ligand to form a mononuclear cyclic complex with Pd. (C) 2010 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.apcata.2010.09.008

文献信息

• Specific molecular container for dioxane
  作者：Jungmin Ahn、Kyung Hwan Park、Tae Hwan Noh、Ok-Sang Jung

  DOI：10.1016/j.inoche.2011.09.001

  日期：2011.12

  Metallacyclodimeric complex of [(Me(4)en)Pd(L)](2)(PF(6))(4) (Me(4)en = N,N,N',N'-tetramethylethylenediamine: L=1,3-bis(4-pyridyl)tetramethyldisiloxane) is a sensitive container for dioxane via appropriate size effect. The equilibrium between the "included" and "free" dioxane species has been monitored. by temperature-dependent (1)H NMR spectra. (C) 2011 Elsevier B.V. All rights reserved.
• Pseudorotaxane-type n-hydrocarbon container. Metallacyclodimer of ionic palladium(ii) complexes containing 1,3-bis(4-pyridyl)tetramethyldisiloxane
  作者：Jungmin Ahn、Sung Min Kim、Tae Hwan Noh、Ok-Sang Jung

  DOI：10.1039/c1dt10980d

  日期：——

  An unusual “pseudorotaxaned n-alkane within a metalla-cyclodimer” system, CnH2n+2@[(Me4en)Pd(L)]2(CF3SO3)4 (n = 5, 6, 7; Me4en = N,N,N′,N′-tetramethylethylenediamine; L = 1,3-bis(4-pyridyl)tetramethyldisiloxane), was constructed. This system is the first pseudorotaxane-type petroleum container achieved via the appropriate size effect.

  一种不常见的“金属环二聚体中的伪轮烷烷正构烷烃”系统C n H 2 n +2 @ [（Me 4 en）Pd（L）] 2（CF 3 SO 3）4（n = 5，6，7 ; Me 4 en =N，N，N '，N'-四甲基乙二胺; L =1,3-双（4-吡啶基）四甲基二硅氧烷），已构建。该系统是通过适当的尺寸效应实现的第一个假轮烷型石油容器。
• Bis(pyridyl)siloxane–Pd(II) complex catalyzed oxidation of alcohol to aldehyde: Effect of ligand tethering on catalytic activity and deactivation behavior
  作者：Michael N. Missaghi、John. M. Galloway、Harold H. Kung

  DOI：10.1016/j.apcata.2010.09.008

  日期：2011.1

  A series of oligomeric methylsiloxane compounds functionalized with pyridyl groups was synthesized and used as ligands in the aerobic Pd(OAc)(2)-catalyzed oxidation of benzyl alcohol to benzaldehyde at 353 K. The effect of tethering two pyridine ligands at the terminal positions of linear siloxanes of varying length was systematically investigated, as was the effect of the attachment point of the pyridine ring (meta or para). It was found that meta-substituted pyridylsiloxanes were generally more effective in protecting the catalyst against Pd agglomeration. For this purpose, the optimal meta-pyridylsiloxane ligands had 4-6 silicon atoms or 10 silicon atoms for para-pyridylsiloxane ligands. The metal-ligand binding properties were used to interpret the catalytic behavior, and the ability of the catalyst stability correlated with ability of the bis-pyridyl ligand to form a mononuclear cyclic complex with Pd. (C) 2010 Elsevier B.V. All rights reserved.