Tetrakis[3-[chloro(dimethyl)silyl]propyl] silicate | 255058-30-1

• 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[3-[chloro(dimethyl)silyl]propyl] silicate
• CAS: 255058-30-1
• 化学式: C₂₀H₄₈Cl₄O₄Si₅
• 分子量: 634.838
• InChiKey: URZPOVOLBPDFEO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.82
• 重原子数：
  33
• 可旋转键数：
  20
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  36.9
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  Tetrakis[3-[chloro(dimethyl)silyl]propyl] silicate 、 (二苯基膦基)甲醇 在 三乙烯二胺 作用下， 以 甲苯 为溶剂， 反应 15.0h， 以87%的产率得到Tetrakis[3-[diphenylphosphanylmethoxy(dimethyl)silyl]propyl] silicate
  参考文献：
  名称：

  Branched and dendritic metallo-carbosiloxanes with OCH2PPh2MLn end-grafted units

  摘要：

  A straightforward method for the preparation of metallo carbosiloxanes of type Si(OCH2CH2CH2SiMe2[OCH2PPh2M(CO)(n)])(4) (n = 3, M = Ni, 7a; n = 4, M = Fe, 7b; n = 5: M = Mo, 7c; M = W, 7d), Si(OCH2CH2CH2SiMe[OCH2PPh2Ni(CO)(3)](2))(4) (8) and Me2Si(OCH2CH2CH2SiMe[OCH2PPh2Ni(CO)(3)](2))(2) (11) is described. The reaction of Si(OCH2CH2CH2SiMeXCl)(4) (1: X = Me, 2: X = Cl) or Me2Si(OCH2CH2CH2SiMeCl2)(2) (9) with HOCH2PPh2 (3) produces Si(OCH2CH2CH2SiMe2(OCH2PPh2))(4) (4), Si(OCH2CH2CH2SiMe(OCH2PPh2)(2))(4) (5) or Me2Si(OCH2CH2CH2SiMC(OCH2PPh2)(2))(2) (10) in presence of DABCO. Treatment of the latter molecules with Ni(CO)4 (6a), Fe-2(CO)(9) (6b), M(CO)(5)(Thf) (6c: M = Mo; 6d: M = W), respectively, gives the title compounds 7a-7d, 8 and 11 in which the PPh2 groups are datively bound to a 16-valence-electron metal carbonyl fragment. The formation of analytical pure and uniform branched and dendritic metallo-carbosiloxanes is based on elemental analysis, and IR, H-1, C-13{H-1}, Si-29{H-1} and (31)p{H-1} NMR spectroscopic studies. In addition, ESI-TOF mass spectrometric studies were carried out. (C) 2004 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2004.08.022
• 作为产物：
  描述：

  二甲基一氯硅烷 、 硅酸四烯丙酯 在 dihydrogen hexachloroplatinate 作用下， 反应 12.0h， 以97%的产率得到Tetrakis[3-[chloro(dimethyl)silyl]propyl] silicate
  参考文献：
  名称：

  Linear and Branched Carbosiloxane Dendrimers by Repetitive Hydrosilylation-Alcoholysis Cycles

  摘要：

  DOI：

  10.1055/s-1999-3620

文献信息

• Tri(ethylene Glycol)- and Poly(ethylene Glycol) Ether End-Grafted Carbo­siloxane and Carbosilane Dendrimers: Synthesis and Reaction Behavior
  作者：H. Lang、R. Buschbeck、S. Mecklenburg、B. Lühmann、V. K. Gupta

  DOI：10.1055/s-2004-831246

  日期：——

  Me] 2 (15), Si[CH 2 CH 2 CH 2 SiMe 2 CH 2 CH 2 -CH 2 O(CH 2 CH 2 O) 3 Me] 4 (17) and SiCH 2 CH 2 CH 2 SiMe[CH 2 CH 2 -CH 2 SiMe 2 CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 3 Me] 2 } 4 (19) were synthesized by the hydrosilylation of CH 2 =CHCH 2 O(CH 2 CH 2 O) 3 Me (14) with Me 2 Si(CH 2 CH 2 CH 2 SiMe 2 H) 2 (13), Si(CH 2 CH 2 CH 2 SiMe 2 H) 4 (16) or Si[CH 2 CH 2 CH 2 SiMe(CH 2 CH 2 CH 2 SiMe 2 H) 2 ] 4 (18)

  讨论了TEG-[三(乙二醇)单甲醚]和PEG-[聚(乙二醇)单甲醚]封端的第1-3代碳硅氧烷和碳硅烷树枝状大分子的制备。Si(OCH 2 CH 2 CH 2 SiMe-XCl) 4 (la, X = Me; 1b, X = Cl) 与 HO(CH 2 CH 2 O) n Me (2a, n = 3, TEG; 2b, n = 7.3, PEG) 得到合适的树枝状大分子 Si[OCH 2 CH 2 CH 2 SiMe 2 O(CH 2 CH 2 O) n Me] 4 (3a, n = 3; 3b, n = 7.3) 和 SiOCH 2 CH 2 CH 2 SiMe[O(CH 2 CH 2 O) n Me] 2 } 4 (4a. n=3; 4b, n = 7.3)。以类似的方式，第 2 代和第 3 代碳硅氧烷树枝状大分子 Si(OCH 2 CH 2 CH 2 SiMe(OCH 2 CH 2
• Lineare Carbosiloxan-Dendrimere mit terminalen [(η2-CCH)Co2(CO)6]-Bausteinen
  作者：Karin Brüning、Heinrich Lang

  DOI：10.1016/s0022-328x(99)00550-1

  日期：1999.12

  The preparation of the first-generation dendrimers Si(OCH2CH2CH2SiMe2OCH2C=CH)(4) (5) as well as Si(OCH2CH2- CH2SiMe2C=CSiMe3)(4) (7) from Si(OCH2CH2CH2SiMe2Cl)(4) (4) is described. While 5 can be synthesized by the reaction of 4 with HOCH2C=CH (2) and NEt3 in 80% yield, 7 is accessible by treatment of 4 with LiC=CSiMe3 (6) in 70% yield. When Si(OCH2C=CH)(4) (3), 5 and 7 were reacted with four equivalents of Co-2(CO)(8) (8), dendrimers Si(OCH2[(eta(3)-C=CH)Co-2(CO)(6)])(4) (9), Si(OCH2CH2CH2SiMe2OCH2[(eta(2)-C=CH)Co-2(CO)(6)])(4) (10) and Si(OCH2CH2CH2SiMe2[(eta(2)-C=CSiMe3)Co-2(CO)(6)])(4) (11) were formed. These dendritic molecules possess as end-grafted entities hexacarbonyldicobalt-tetrahedrane fragments on their surface. Dendrimers 5, 7 and 9-11 were fully characterized by elemental analysis, spectroscopic studies (IR,H-1-, C-13H-1}-NMR) as well as gel-permeation chromatography.