| 200441-57-2

• CAS: 200441-57-2
• 化学式: C₄₀H₈₀O₄Si₈
• 分子量: 849.757
• InChiKey: CIHCTMHGXOFDFU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  14.16
• 重原子数：
  52.0
• 可旋转键数：
  28.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.6
• 拓扑面积：
  36.92
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  甲基二氯硅烷 、 在 10 % platinum-active carbon 作用下， 以 四氢呋喃 为溶剂， 反应 12.0h， 以96%的产率得到
  参考文献：
  名称：

  Preparation and termination of carbosilane dendrimers based on a siloxane tetramer as a core molecule: silane arborols, part VIII

  摘要：

  Starting with 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-2,4,6,8-tetrasila-1,3,5,7-tetraoxacyclooctane (Me(CH2=CH)SiO)(4) as a core molecule, a succession of alternate platinum-catalyzed hydrosilations of all vinyl groups with HSiMeCl2,, as well as alkenylation with allylmagnesium bromide, provided the third generation (G3) as divergent growth of siloxane-based dendrimers. The reaction path of the repetitive allylation/hydrosilation cycles is controlled with NMR spectroscopic analyses. Each of the two steps provided quantitative yields of pure dendrimers. We also changed the simple construction of the G3P molecule into materials with special functions, such as by adding phenylethynyl and p-bromophenoxy groups on its periphery. (C) 1997 Elsevier Science S.A.

  DOI：

  10.1016/s0022-328x(97)00145-9
• 作为产物：
  描述：

  Dichloro-methyl-[2-[4,6,8-tris[2-[dichloro(methyl)silyl]ethyl]-2,4,6,8-tetramethyl-1,3,5,7,2,4,6,8-tetraoxatetrasilocan-2-yl]ethyl]silane 、 烯丙基溴化镁 以 四氢呋喃 、 乙醚 为溶剂， 反应 2.0h， 以60%的产率得到
  参考文献：
  名称：

  Preparation and termination of carbosilane dendrimers based on a siloxane tetramer as a core molecule: silane arborols, part VIII

  摘要：

  Starting with 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-2,4,6,8-tetrasila-1,3,5,7-tetraoxacyclooctane (Me(CH2=CH)SiO)(4) as a core molecule, a succession of alternate platinum-catalyzed hydrosilations of all vinyl groups with HSiMeCl2,, as well as alkenylation with allylmagnesium bromide, provided the third generation (G3) as divergent growth of siloxane-based dendrimers. The reaction path of the repetitive allylation/hydrosilation cycles is controlled with NMR spectroscopic analyses. Each of the two steps provided quantitative yields of pure dendrimers. We also changed the simple construction of the G3P molecule into materials with special functions, such as by adding phenylethynyl and p-bromophenoxy groups on its periphery. (C) 1997 Elsevier Science S.A.

  DOI：

  10.1016/s0022-328x(97)00145-9

文献信息

• Dendritic carbosilanes containing hydroxy groups on the periphery
  作者：Chungkyun Kim、Sungmo Son、Bohyun Kim

  DOI：10.1016/s0022-328x(99)00335-6

  日期：1999.10

  Dendritic carbosilanes with hydroxy groups on the periphery have been prepared. The hydroxy-group-containing dendrimers were prepared by the use of the hydroboration of carbosilane dendrimers containing double bonds with 9-BBN and the subsequent oxidation of the prepared dendrimers. Oxidation of the hydroborated dendrimers in an alkali medium gave quantitative yields. The hydroboration and oxidation

  已经制备了在外围具有羟基的树枝状碳硅烷。通过使用含有与9-BBN的双键的碳硅烷树状聚合物的硼氢化和随后氧化所制备的树状聚合物来制备含羟基的树状聚合物。在碱性介质中氧化硼氢化的树枝状大分子得到定量的产率。通过1 H-和13 C-NMR光谱监测硼氢化和氧化过程。使用MALDI质谱法，在所有情况下，均已对具有羟基的碳硅烷树状大分子的统一形式进行了表征。
• Preparation of dendritic carbosilanes containing ethynyl groups and dicobalt hexacarbonyl clusters on the periphery
  作者：Chungkyun Kim、Inkyung Jung

  DOI：10.1016/s0022-328x(99)00336-8

  日期：1999.10

  Dendritic carbosilanes have been prepared by the use of 2,4,6,8-tetramethyl-2,4,6,8-tetravinyl-2,4,6,8-tetrasila-1,3,5,7-tetraoxacyclooctane (CH2=CHMeSiO), and 1,2-bis(triallylsilyl)ethane ((CH2=CHCH2)(3)SiCH2)(2) as core molecules, diallylmethylsilyl groups ((CH2=CHCH2)(2)MeSi-) as building blocks and bisphenylethynylmethylsilyl groups ((PhC=C)(2)MeSi-) as terminating groups. The phenylethynyl-group-containing terminal generation is produced by the reaction of the chlorosilylated generation with lithium phenylacethylide. The reaction of dicobalt octacarbonyl Co,(CO), with phenylethynyl groups gave the corresponding phenylethynyl hexacarbonyl complexes (2Co(2)(CO)(6).(PhC=C)(2)MeSi-dendimer) on the periphery. The yields of the prepared dendrimers with phenylethynyl terminal groups and their cobalt carbonyl complexes are obtained nearly quantitatively. They are characterized by the use of spectroscopic analyses (H-1-, and C-13-NMR, UV and IR) as well as MALDI mass spectroscopy and elemental analysis. (C) 1999 Elsevier Science S.A. All rights reserved.