(tert-butyldimethylsilyl)tris(trimethylsilyl)silane | 187084-81-7

• 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: (tert-butyldimethylsilyl)tris(trimethylsilyl)silane
• 英文别名: 1-Tert-butyl-1,1,3,3,3-pentamethyl-2,2-bis(trimethylsilyl)trisilane；tert-butyl-dimethyl-tris(trimethylsilyl)silylsilane
• CAS: 187084-81-7
• 化学式: C₁₅H₄₂Si₅
• 分子量: 362.926
• InChiKey: ZWANQGVIZLRCQY-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.27
• 重原子数：
  20
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  (tert-butyldimethylsilyl)tris(trimethylsilyl)silane 在 potassium tert-butylate 、 硫酸 作用下， 以 四氢呋喃 、 乙醚 、 水 为溶剂， 反应 16.0h， 以94%的产率得到(tert-butyldimethylsilyl)bis(trimethylsilane)
  参考文献：
  名称：

  Zirngast, Michaela; Flock, Michaela; Baumgartner, Judith, Journal of the American Chemical Society, 2008, vol. 130, p. 17460 - 17470

  摘要：

  DOI：
• 作为产物：
  描述：

  四(三甲基硅基)硅烷 、 叔丁基二甲基氯硅烷 在 potassium tert-butylate 作用下， 以 四氢呋喃 、 甲苯 为溶剂， 反应 10.0h， 以80%的产率得到(tert-butyldimethylsilyl)tris(trimethylsilyl)silane
  参考文献：
  名称：

  Synthesis, structure and reactivity of sterically demanding oligosilanylmagnesium compounds

  摘要：

  A sterically demanding TBS-substituted oligosilane (4, TBS = t-butyldimethylsilyl) was stepwisely formed by reactions of oligosilanyl potassium compound and the corresponding chlorosilane. Although a well-established method, the ring closure reaction of compound 4 in the presence of t-BuOK and 18-Cr-6 with SiX4 (X = Cl, Br) failed. The silyl potassium compound was then transformed to silyl Grignard compound 5, which can be used to react with SiX4 to give the dihalocyclopentasilanes (6, X = Cl; 7, X = Br) successfully. The molecular structures of 3-7 have been confirmed by X-ray single-crystal analyses. (C) 2015 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.poly.2015.09.058

文献信息

• Synthesis of Potassium Oligosilanides in Benzene
  作者：Rainer Zitz、Judith Baumgartner、Christoph Marschner

  DOI：10.1002/ejic.201800099

  日期：2018.6.7

  that the reaction of methylated oligosilanes, like (Me3Si)4Si, with tBuOK to afford potassium oligosilanides requires ethereal solvents or crown ether, we found that the reaction also proceeds in benzene. However, forced reaction conditions and long reaction times are required to obtain complete conversion. The related reaction of the phenyl‐substituted oligosilane (PhMe2Si)3SiMe proceeds much faster

  尽管最初的假设是甲基化的低聚硅烷（如（Me 3 Si）4 Si）与t BuOK反应生成低聚硅铝酸钾需要醚溶剂或冠醚，但我们发现该反应也在苯中进行。然而，需要强制的反应条件和长的反应时间以获得完全的转化。苯基取代的低硅烷（PhMe 2 Si）3 SiMe的相关反应进行得更快，表明底物的苯基与钾离子相互作用，从而促进了反应。试图通过使用大量过量的t来加速甲基化低聚硅烷的反应BuOK成功。但是，在该反应中形成的硅化物与t BuOK共结晶。
• Planar three-coordinate iron(<scp>ii</scp>) complexes supported by sterically demanding –Si(SiMe₃)₂(SiMe₂^<i>t</i>Bu) ligands
  作者：Reon Ishii、Yusuke Sunada

  DOI：10.1039/d3dt04130a

  日期：——

  Sterically demanding organosilyl ligands support the formation of coordinatively unsaturated complexes. In this study, we found that using the ligand –Si(SiMe3)2(SiMe2tBu) affords exclusively planar three-coordinate iron bis(silyl) complexes that show good catalytic performance in the hydrosilylation of acetophenone.

  空间要求高的有机甲硅烷基配体支持配位不饱和络合物的形成。在这项研究中，我们发现使用配体–Si(SiMe 3 ) 2 (SiMe 2 t Bu)可提供独特的平面三配位铁双(甲硅烷基)配合物，该配合物在苯乙酮的硅氢加成反应中表现出良好的催化性能。
• Oligosilanylsilatranes
  作者：Mohammad Aghazadeh Meshgi、Judith Baumgartner、Christoph Marschner

  DOI：10.1021/acs.organomet.5b00404

  日期：2015.8.10

  Oligosilanes with attached silatranyl units were obtained by reactions of potassium oligosilanides with a silatranyl triflate. Interaction between Si and N atoms was observed in the Si-29 NMR spectra (upfield-shifted SiO3 resonances) and in the solid-state structures (Si-N distances between 2.29 and 2.16 angstrom). The Si-N interaction can be "switched off" either by protonation of the nitrogen lone pair or by potassium silanide formation caused by trimethylsilyl group cleavage in the presence of potassium tert-butoxide.
• Zirngast, Michaela; Flock, Michaela; Baumgartner, Judith, Journal of the American Chemical Society, 2008, vol. 130, p. 17460 - 17470
  作者：Zirngast, Michaela、Flock, Michaela、Baumgartner, Judith、Marschner, Christoph

  DOI：——

  日期：——
• Synthesis, structure and reactivity of sterically demanding oligosilanylmagnesium compounds
  作者：Jun Luo、En-Hui Yan、Hui Zhao、Xu-Qiong Xiao、Zhifang Li

  DOI：10.1016/j.poly.2015.09.058

  日期：2015.12

  A sterically demanding TBS-substituted oligosilane (4, TBS = t-butyldimethylsilyl) was stepwisely formed by reactions of oligosilanyl potassium compound and the corresponding chlorosilane. Although a well-established method, the ring closure reaction of compound 4 in the presence of t-BuOK and 18-Cr-6 with SiX4 (X = Cl, Br) failed. The silyl potassium compound was then transformed to silyl Grignard compound 5, which can be used to react with SiX4 to give the dihalocyclopentasilanes (6, X = Cl; 7, X = Br) successfully. The molecular structures of 3-7 have been confirmed by X-ray single-crystal analyses. (C) 2015 Elsevier Ltd. All rights reserved.