Germane, hydroxytris(1-methylethyl)- | 618384-08-0

• 分子结构分类: 有机化合物 - 有机磷化合物
• 英文名称: Germane, hydroxytris(1-methylethyl)-
• 英文别名: triisopropylgermanol；triisopropylhydroxygermane；triisopropyl germanium (1+); hydroxide；Triisopropyl-germanium(1+); Hydroxid
• CAS: 618384-08-0
• 化学式: C₉H₂₂GeO
• 分子量: 218.863
• InChiKey: KBOQEUXIAOUQAM-UHFFFAOYSA-N

物化性质

• 熔点：
  -15 °C
• 沸点：
  216 °C

计算性质

• 辛醇/水分配系数(LogP)：
  3.15
• 重原子数：
  11.0
• 可旋转键数：
  3.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  20.23
• 氢给体数：
  1.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  Germane, hydroxytris(1-methylethyl)- 以 正己烷 为溶剂， 生成
  参考文献：
  名称：

  摘要：

  Iron and cobalt siloxides and germyloxides [(Me3Si)(3)SiO](2)M (M = Fe (1), Co (2)), (Me5Si2O)(2)Fe (3), ((Pr3SiO)-Si-i)(2)M (M = Fe (4), Co (5)), ((Pr3GeO)-Ge-i)(2)Fe (6), (Ph3SiO)(2)Fe (7), (Me3SiO)(2)Fe (8), ((Pr3GeO)-Ge-i)(2)Fe(bpy) (9), and [(Me3Si)(2)NFe(mu-OSi2Me5)(2)](2)Fe.C6H6 (10) were synthesized by the reactions of metal silylamides [(Me3Si)(2)N](2)M (M = Fe, Co) with the corresponding silanols or triisopropylgermanol. The reaction of pentamethyldisilanol with iron(II) silylamide affords either polymeric complex 3 or coordination oligomer 10, depending on the ratio of the reactants. The structures of complexes 9 and 10 were established by X-ray diffraction analysis. The interaction of the prepared compounds with carbon oxides was studied. Low-coordination cobalt siloxide is the only among all prepared compounds that absorbs CO (2 mol) at room temperature and under 1 atm to form an unstable cluster. Compounds 1, 2, and 4-8 react with CO2 to form carbonate complexes, and their reactivity decreases with a decrease in the electron-donating ability of the substituents at the central atom: (Me3Si)(3)SiO > (Pr3GeO)-Ge-i approximate to (Pr3SiO)-Si-i > Me3SiO much greater than Ph3SiO.

  DOI：

  10.1023/a:1023423202997
• 作为产物：
  描述：

  氯(三异丙基)锗烷 在 sodium hydroxide 作用下， 反应 1.0h， 以82%的产率得到Germane, hydroxytris(1-methylethyl)-
  参考文献：
  名称：

  Titanium–Germoxy Precursor Route to Germanium-Modified Epoxidation Catalysts with Enhanced Activity

  摘要：

  The complex Ti[(OGePr3)-Pr-i](4) (1), prepared via the reaction of Ti((OPr)-Pr-i)(4) with (Pr3GeOH)-Pr-i, represents a useful structural and spectroscopic model for titanium-germanium species dispersed onto silica: This precursor was used to introduce site isolated Ti(IV) centers onto the surface of a mesoporous SBA15 support via the thermolytic molecular precursor method. The local, environments, of the supported materials (TiGe(3)SBA15 and calcined TiGe(3)SBA15-O-2) were studied by various spectroscopic methods, including X-ray absorption spectroscopy. These materials are active catalysts for the epoxidation of cyclic and terminal olefins with alkyl hydroperoxides under anhydrous conditions. Compared to catalysts synthesized from siloxide-only precursors, the new catalysts produce 2-3 times more product after 9 h under identical reaction conditions for the epoxidations of cyclohexene and 1-octene. The new materials did not significantly leach under reaction conditions.

  DOI：

  10.1021/cs400529x

文献信息

• Chemoselective and Catalyst-Free O-Borylation of Silanols: A Facile Access to Borasiloxanes
  作者：K. Kuciński、G. Hreczycho

  DOI：10.1002/cssc.201701648

  日期：2017.12.8

  highly chemoselective syntheses of various borasiloxanes from hydroboranes and silanols, achieved through catalyst‐free dehydrogenative coupling at room temperature. This green protocol, which uses easily accessible reagents, allows for the obtaining of borasiloxanes under air atmosphere and solvent‐free conditions.

  本文展示了通过氢硼烷和硅烷醇在室温下通过无催化剂的脱氢偶合反应实现的各种硼烷硅氧烷的首次高化学选择性合成。该绿色方案使用易于获得的试剂，可在空气气氛和无溶剂条件下获得硼硅氧烷。
• Tantalum–Polyhedral Oligosilsesquioxane Complexes as Structural Models and Functional Catalysts for Epoxidation
  作者：Pascal Guillo、Michael I. Lipschutz、Meg E. Fasulo、T. Don Tilley

  DOI：10.1021/acscatal.7b00020

  日期：2017.4.7

  Tantalum-based supported catalysts have been shown to be very selective for epoxidations with aqueous hydrogen peroxide. To gain information relative to the active site on the surface, access to molecular complexes that mimic the active site of the catalyst on the surface is of great interest. In this contribution, several new Ta-polyhedral oligosilsesquioxane (POSS) complexes with POSS ligands are

  钽基负载型催化剂对用过氧化氢水溶液进行环氧化具有很高的选择性。为了获得相对于表面上活性位点的信息，对模拟表面上催化剂活性位点的分子配合物的访问非常感兴趣。在此贡献中，几种具有POSS配体的新型Ta多面体低聚倍半硅氧烷（POSS）配合物用于模拟与二氧化硅结合的Ta位点，并显示出作为环氧化催化剂的活性。值得注意的是，观察到由锗烷氧基配体修饰并具有双核Ta（μ-O）（μ-OH）Ta核的Ta-POSS络合物对于使用过氧化氢水溶液进行环辛烯的环氧化非常有效。
• Cobalt-catalyzed dehydrogenative cross-coupling reaction: Selective access to dihydrosiloxanes, hydrosiloxanes and functionalized silsesquioxanes
  作者：Ewelina Szafoni、Krzysztof Kuciński、Grzegorz Hreczycho

  DOI：10.1016/j.jcat.2023.04.013

  日期：2023.7

  protocol for the construction of Si−O−Si moieties under cobalt catalysis. The reaction has a broad scope and can be used to synthesize a wide range of silicon building blocks, including challenging dihydrosiloxanes and functionalized silsesquioxanes. Most importantly, the results are placed into context by benchmarking with state-of-the-art methods. Remarkably, the utilized PNP-Co catalyst enables the development

  公开了一种用于在钴催化下构建 Si-O-Si 基团的温和、可扩展且具有化学选择性的交叉脱氢功能化方案。该反应范围广泛，可用于合成多种硅结构单元，包括具有挑战性的二氢硅氧烷和功能化倍半硅氧烷。最重要的是，通过使用最先进的方法进行基准测试，将结果置于上下文中。值得注意的是，所使用的 PNP-Co 催化剂能够开发进一步的合成策略，例如一锅顺序硅醇解/醇解过程或锗醇和氢硅烷之间前所未有的脱氢偶联反应。
• O-Metalation of silanols and POSS silanols over Amberlyst-15 catalyst: A facile route to unsymmetrical siloxanes, borasiloxanes and germasiloxanes
  作者：Krzysztof Kuciński、Grzegorz Hreczycho

  DOI：10.1016/j.ica.2019.03.025

  日期：2019.5

  A simple and highly practical Amberlyst-catalyzed direct O-metalation of silanols, POSS silanols and alkoxy-silanes under mild conditions is proposed. This protocol can be applied to the synthesis of a wide range of important organosilicon derivatives such as siloxanes, germasiloxanes, borasiloxanes and functionalized silses-quioxanes. It is worth noting that Amberlyst-15 can be reused for further experiments and its catalytic activity in this process is well-preserved for several recycling steps.
• Isopropylgermanium Halides, Oxides and Hydroxide; Grignard Reaction
  作者：Herbert H. Anderson

  DOI：10.1021/ja01100a016

  日期：1953.2