tetrakis[2-[chloro(dimethyl)silyl]ethyl]silane | 171520-44-8

• 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: tetrakis[2-[chloro(dimethyl)silyl]ethyl]silane
• 英文别名: tetrakis[2-(chlorodimethylsilyl)ethyl]silane；tetrakis(chlorodimethylsilylethyl)silane；Silane, tetrakis[2-(chlorodimethylsilyl)ethyl]-
• CAS: 171520-44-8
• 化学式: C₁₆H₄₀Cl₄Si₅
• 分子量: 514.733
• InChiKey: PEEGSQSGZGIWLI-UHFFFAOYSA-N

物化性质

• 沸点：
  449.5±30.0 °C(Predicted)
• 密度：
  0.995±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  9.21
• 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：

  tetrakis[2-[chloro(dimethyl)silyl]ethyl]silane 在 lithium aluminium tetrahydride 作用下， 以 四氢呋喃 、 乙醚 为溶剂， 以56%的产率得到tetrakis[2-(dimethylsilyl)ethyl]silane
  参考文献：
  名称：

  The synthesis and catalytic activity of poly(bis(imino)pyridyl) iron(II) metallodendrimer

  摘要：

  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.

  DOI：

  10.1016/j.jorganchem.2004.06.053
• 作为产物：
  描述：

  二甲基一氯硅烷 、 四乙烯硅烷 在 Pt-based catalyst 作用下， 生成 tetrakis[2-[chloro(dimethyl)silyl]ethyl]silane
  参考文献：
  名称：

  巯基醇与氯硅烷的高度选择性反应产生的多功能硫醇。

  摘要：

  通过氯硅烷与巯基醇的选择性反应合成了多官能硫醇。没有观察到巯基醇通过巯基的反应。利用这种方法，制备了具有不同结构多样性的硫醇。

  DOI：

  10.1039/c3cc39152c

文献信息

• Boron-Functionalized Carbosilanes:  Insertion of Carborane Clusters into Peripheral Silicon Atoms of Carbosilane Compounds
  作者：Rosario Núñez、Arántzazu González-Campo、Clara Viñas、Francesc Teixidor、Reijo Sillanpää、Raikko Kivekäs

  DOI：10.1021/om050651+

  日期：2005.12.1

  the reaction with carboranes and the final products. Two different methods have been used for their preparation:  (a) the nucleophilic substitution of the periphery Si−Cl functions with the corresponding carborane monolithium salt; (b) the hydrosilylation reaction of tetravinyl or tetraallylsilane with the carboranylsilanes 1-Me2HSi-2-Me-1,2-C2B10H10 (7) and 1-Me2HSi-2-Ph-1,2-C2B10H10 (8) catalyzed by

  已经合成了两个家族的含碳硼烷的星形碳硅烷分子。通过C簇-Si键在碳硅烷周围引入了三个不同的碳硼烷笼子1-R-1,2-C 2 B 10 H 11，其中R基团具有不同的蓬松度（R = H，Me，Ph）。。第一家庭，1 - 3，是从包含两个碳原子作为分支点（1G氯硅烷衍生的V -Cl），而在第二个，4 - 6，分支长度已被改变（1G甲-Cl），以研究化合物在与碳硼烷和最终产物反应中的大小和柔韧性。两种不同的制备方法已经使用：（a）外围Si-Cl功能的亲核取代反应是相应的碳硼烷单锂盐；（b）四乙烯基或四烯丙基硅烷与碳硼烷基硅烷1-Me 2 HSi-2-Me-​​1,2-C 2 B 10 H 10（7）和1-Me 2 HSi-2-Ph-1,2的氢化硅烷化反应-C 2 B 10 H 10（8）由Karsted的催化剂催化。第一种方法得到的化合物包含四个共价键合到碳硅烷核心的外围Si原子上的碳硼烷基部分
• Palladium complexes of phosphine functionalised carbosilane dendrimers as catalysts in a continuous flow membrane reactor†
  作者：Debby de Groot、Janine C. de Wilde、Richard J. van Haaren、Joost N. H. Reek、Paul C. J. Kamer、Piet W. N. M. van Leeuwen、Eva B. Eggeling、Dieter Vogt、Huub Kooijman、Anthony L. Spek、Alexander W. van der Made

  DOI：10.1039/a904455h

  日期：——

  Phosphine functionalised carbosilane dendrimers have been synthesised and their palladium complexes used as catalysts in the allylic alkylation reaction performed in a continuous flow membrane reactor.

  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。
• Selective lithiation and crystal structures of G1-carbosilane dendrimers with dimethoxybenzene functionalities
  作者：Sjoerd Harder、Reinout Meijboom、John R Moss

  DOI：10.1016/j.jorganchem.2003.12.047

  日期：2004.4

  zipper-like network of intermolecular C–H⋯O bonds. Direct lithiation of these dendrimers with n-BuLi in Et2O yields complete and selective lithiation in the aryl ring between the methoxy substituents. However, dendrimer 2 is also partially lithiated in the benzylic group. For the solid state structure of such lithiated dendrimers, a diamond-type assembly is predicted.

  描述了以下树枝状聚合物的合成途径：Si [CH 2 CH 2 Si（Me）2 CH 2 -3,5-（MeO）2 -C 6 H 3 ] 4（2）和Si [CH 2 CH 2 Si（ Me）2 -2,4-（MeO）2 -C 6 H 3 ] 4（4）。这些树状聚合物的晶体结构已经通过单晶X射线衍射确定。一种树枝状聚合物（2）显示出晶体学S 4。对称性和分子内C–H⋯O键，而另一个（4）显示晶体学C 2对称性，并嵌入分子间C–H⋯O键的拉链状网络中。这些树状大分子在Et 2 O中用n -BuLi直接锂化会在甲氧基取代基之间的芳环上产生完全和选择性的锂化。但是，树枝状聚合物2在苄基中也被部分锂化。对于这种锂化树枝状聚合物的固态结构，可以预测为菱形组装。
• Process for preparation of SioH-functional carbosilane dendrimers
  申请人：Bayer AG

  公开号：US05880305A1

  公开（公告）日：1999-03-09

  The present invention relates to a process for the preparation of SiOH-functional carbosilane dendrimers.

  本发明涉及一种制备SiOH官能化碳硅烷树状分子的方法。
• Design and synthesis of readily degradable acyloxysilane dendrimers
  作者：Christopher M. Downing、Michael N. Missaghi、Mayfair C. Kung、Harold H. Kung

  DOI：10.1016/j.tet.2011.07.068

  日期：2011.9

  Two types of dendrimers with AB(2) branching, one with acyloxysilanes at the branching position (V type) and the other at the non-branching position (Y type), were synthesized using hydrosilylation with chlorosilanes followed by heterofunctional condensation with olefin-functional carboxylic acids, and examined as readily degradable template materials. The V type dendrimer was much more susceptible to ligand redistribution with chlorosilanes during preparation, whereas the Y type was less. The acyloxysilane linkages in these dendrimers could be cleaved readily by alcoholysis or hydrolysis on demand, making for suitable templates. (C) 2011 Elsevier Ltd. All rights reserved.