tetra-2-(dichloromethylsilyl)ethylsilane | 67776-45-8

• 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: tetra-2-(dichloromethylsilyl)ethylsilane
• 英文别名: Tetrakis[2-[dichloro(methyl)silyl]ethyl]silane
• CAS: 67776-45-8
• 化学式: C₁₂H₂₈Cl₈Si₅
• 分子量: 596.406
• InChiKey: OOJWCPJHXLCXSE-UHFFFAOYSA-N

物化性质

• 沸点：
  444.9±30.0 °C(Predicted)
• 密度：
  1.201±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  9.63
• 重原子数：
  25
• 可旋转键数：
  12
• 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：

  tetra-2-(dichloromethylsilyl)ethylsilane 在 lithium aluminium tetrahydride 作用下， 以 乙醚 为溶剂， 生成 Tetrakis(2-methylsilylethyl)silane
  参考文献：
  名称：

  Use of Dendrimers to Stimulate Cell Growth

  摘要：

  本发明涉及在细胞培养中使用具有单磷酸或双磷酸端基的树枝状聚合物，以促进细胞培养的生长或激活细胞。

  公开号：

  US20090142316A1
• 作为产物：
  描述：

  甲基二氯硅烷 、 四乙烯硅烷 在 铂 作用下， 生成 tetra-2-(dichloromethylsilyl)ethylsilane
  参考文献：
  名称：

  Palladium complexes of phosphine functionalised carbosilane dendrimers as catalysts in a continuous flow membrane reactor†

  摘要：

  我们合成了膦功能化碳硅烷树枝状聚合物，并将其钯络合物用作催化剂，在连续流动膜反应器中进行烯丙基烷基化反应。

  DOI：

  10.1039/a904455h

文献信息

• Preparation and Characterization of Nonpolar Fluorinated Carbosilane Dendrimers by APcI Mass Spectrometry and Small-Angle X-ray Scattering
  作者：Bamidele A. Omotowa、Keith D. Keefer、Robert L. Kirchmeier、Jean'ne M. Shreeve

  DOI：10.1021/ja992794r

  日期：1999.12.1

  The following highly fluorinated nonpolar dendrimers were obtained in high yields from multiple hydrosilylation reactions between core hydride terminated carbosilane dendrimers and ally1-1,1-dihydrofluoroethyl ether or ally1-1,1-dihydroheptadecafluorononyl ether through divergent synthetic routes: Si[CH2CH2SiMe2(CH2CH2CH2OCH2CF3)](4) (7),SiCH2CH2SiMe[CH2CH2SiMe(CH2CH2CH2OCH2CF3)(2)](2)}(4) (8), Si[CH2CH2Si(CH2CH2CH2OCH2C8F17)(3)]4 (9), Si[CH2CH2SiMe2(CH2CH2CH2OCH2C8F17)](4) (10), and SiCH2CH2Si[CH2CH2Si(CH2CH2CH2OCH2C8F17)(3)](3)}(4) (11) These compounds were characterized by elemental and spectroscopic analyses. Valuable mass spectral data were obtained by using atmospheric pressure chemical ionization (APcI). The fluorinated dendrimer molecule and the nonfluorinated core scatter X-ray light differently and present unique slopes on the Guinier Plot of data from small-angle X-ray light scattering (SAXS) in hexafluorobenzene. Glass transition temperatures (T-g) and thermogravimetric analyses (TGA) of the dendrimers were determined.
• Novel radial oligothienyl silanes
  作者：Pavel Arsenyan、Olga Pudova、Juris Popelis、Edmunds Lukevics

  DOI：10.1016/j.tetlet.2004.02.092

  日期：2004.4

  A series of thiophene-based homologues with a silicon core surrounded by mono-, bi-, terthiophene, and their derivatives with alkylsilyl linkages has been prepared using hydrosilylation and Stille coupling methods. (C) 2004 Elsevier Ltd. All rights reserved.
• Palladium Complexes of Phosphane-Functionalised Carbosilane Dendrimers as Catalysts in a Continuous-Flow Membrane Reactor
  作者：Debby de Groot、Joost N. H. Reek、Paul C. J. Kamer、Piet W. N. M. van Leeuwen

  DOI：10.1002/1099-0690(200203)2002:6<1085::aid-ejoc1085>3.0.co;2-6

  日期：2002.3
• The synthesis and catalytic activity of poly(bis(imino)pyridyl) iron(II) metallodendrimer
  作者：Zhan-Jiang Zheng、Jie Chen、Yue-Sheng Li

  DOI：10.1016/j.jorganchem.2004.06.053

  日期：2004.9

  The first and second generation carbosilane dendrimers with silicon hydride terminated were synthesized, and then reacted with bis(imino)pyridyl containing allyl [4-CH2==CHCH2-2,6-(Pr2C6H3N)-Pr-i==CMe(C5H3N)MeC==N(2,6-'Pr2C6H3)], in the presence of H2PtCl6 as a hydrosilylation catalyst, to afford the first and second generation carbosilane supported ligands. Complexation reactions with FeCl(2)(.)4H(2)O give rise to iron-containing carbosilane dendrimers with FeCl2 moieties bound on the periphery. The metallodendrimers were used as catalyst precursors, activated with modified methylaluminoxane, for the polymerization of ethylene. In the case of low Al/Fe molar ratio, the metallodendrimers display much higher catalytic activity towards ethylene polymerization and produce much higher molecule weight polyethylenes than the corresponding single-nuclear complex under the same conditions. (C) 2004 Elsevier B.V. All rights reserved.
• Synthesis of 1,4-Polybutadiene Dendrimer−Arborescent Polymer Hybrids
  作者：Mario Gauthier、Abdul Munam

  DOI：10.1021/ma1004056

  日期：2010.4.27

  A divergent synthetic scheme was developed for the preparation of high branching functionality hybrid polymers from carbosilane dendrimer substrates and polybutadiene side chains. Carbosilane dendrimers with 32, 64, or 128 peripheral Si-Cl functional groups were first coupled with 1,2-polybutadienyllithium chains having a number-average molecular weight M(n) approximate to 1000. The polybutadiene-grafted substrates were then hydrosilylated with dichloromethylsilane and reacted with high 1,4-microstructure content polybutadienyllithium chains to generate high branching functionality dendrimer arborescent hybrids. Three series of hybrid polymers were synthesized containing 1,4-polybutadiene side chains with M(n) approximate to 1500, 5000, or 30000. Size exclusion chromatography analysis of the polymers confirmed that a narrow molecular weight distribution was maintained (M(w)/M(n) <= 1.14). The branching functionality of the arborescent hybrids varied from 140-335, 160-1110, and 360-2830 for the 32-, 64-, and 128-site coupling precursors, respectively. The experimental branching functionalities attained were lower than the theoretical values due to decreased coupling efficiency within each series, in particular for polymers with longer polybutadiene side chains, apparently due to steric limitations in the grafting reaction.