Trimethyl-[2,2,6,6-tetramethyl-8,8-bis[(2-methylpropan-2-yl)oxy]-3-trimethylsilyl-5,7,9-trioxa-1,3-diaza-2,4,6,8-tetrasilaspiro[3.5]nonan-1-yl]silane | 1292360-19-0

• 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: Trimethyl-[2,2,6,6-tetramethyl-8,8-bis[(2-methylpropan-2-yl)oxy]-3-trimethylsilyl-5,7,9-trioxa-1,3-diaza-2,4,6,8-tetrasilaspiro[3.5]nonan-1-yl]silane
• 英文别名: trimethyl-[2,2,6,6-tetramethyl-8,8-bis[(2-methylpropan-2-yl)oxy]-3-trimethylsilyl-5,7,9-trioxa-1,3-diaza-2,4,6,8-tetrasilaspiro[3.5]nonan-1-yl]silane
• CAS: 1292360-19-0
• 化学式: C₁₈H₄₈N₂O₅Si₆
• 分子量: 541.103
• InChiKey: RGKNATCXLCSQKV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.24
• 重原子数：
  31
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  7

反应信息

• 作为产物：
  描述：

  Me2Si(NSiMe3)2SiCl2 在 吡啶 、 水 作用下， 以 1,4-二氧六环 、 乙醚 为溶剂， 反应 12.5h， 生成 Trimethyl-[2,2,6,6-tetramethyl-8,8-bis[(2-methylpropan-2-yl)oxy]-3-trimethylsilyl-5,7,9-trioxa-1,3-diaza-2,4,6,8-tetrasilaspiro[3.5]nonan-1-yl]silane
  参考文献：
  名称：

  First cyclotrisiloxanes with three different R2Si-units of the general formula R21Si(OSiR22)(OSiR23)O (R21 = Me2Si(NSiMe3)2, R2 = Cl, Ot-Bu, R3 = Me)

  摘要：

  The reaction of compound Me2Si(NSiMe3)(2)Si(OH)Cl with Me2SiCl2 leads to the disiloxane Me2Si(NSi-Me-3) Si-2(Cl)OSi(Me-2)Cl (1). Hydrolysis of 1 in the presence of pyridine results in Me2Si(NSiMe3)(2)Si(OH) OSi(Me-2)OH (2), which is allowed to react with SiCl4 to give cyclotrisiloxane [Me2Si(NSiMe3)(2)Si](OSiMe2) (OSiCl2)O (3). The treatment of 1 with (t-BuO)(2)Si(OH)(2) forms cyclotrisiloxane [Me2Si(NSiMe3)(2)Si] (OSiMe2)[OSi(Ot-Bu)(2)]O (4). Compound 3 is obtained as a crystalline solid while 4 is an oily liquid. The ring size of these new types of cyclotrisiloxanes with three different R2Si-units is confirmed by cryoscopy in benzene, Si-29 NMR chemical shifts and in case of 3, additionally by a single X-ray diffraction study. The different electronegativities of the substituents in the R2Si-units lead to different bond lengths and bond angles within the Si3O3 cycle, which are discussed in detail in the molecular structure of 3. (C) 2011 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2011.01.016

文献信息

• First cyclotrisiloxanes with three different R2Si-units of the general formula R21Si(OSiR22)(OSiR23)O (R21 = Me2Si(NSiMe3)2, R2 = Cl, Ot-Bu, R3 = Me)
  作者：Andreas Rammo

  DOI：10.1016/j.jorganchem.2011.01.016

  日期：2011.4

  The reaction of compound Me2Si(NSiMe3)(2)Si(OH)Cl with Me2SiCl2 leads to the disiloxane Me2Si(NSi-Me-3) Si-2(Cl)OSi(Me-2)Cl (1). Hydrolysis of 1 in the presence of pyridine results in Me2Si(NSiMe3)(2)Si(OH) OSi(Me-2)OH (2), which is allowed to react with SiCl4 to give cyclotrisiloxane [Me2Si(NSiMe3)(2)Si](OSiMe2) (OSiCl2)O (3). The treatment of 1 with (t-BuO)(2)Si(OH)(2) forms cyclotrisiloxane [Me2Si(NSiMe3)(2)Si] (OSiMe2)[OSi(Ot-Bu)(2)]O (4). Compound 3 is obtained as a crystalline solid while 4 is an oily liquid. The ring size of these new types of cyclotrisiloxanes with three different R2Si-units is confirmed by cryoscopy in benzene, Si-29 NMR chemical shifts and in case of 3, additionally by a single X-ray diffraction study. The different electronegativities of the substituents in the R2Si-units lead to different bond lengths and bond angles within the Si3O3 cycle, which are discussed in detail in the molecular structure of 3. (C) 2011 Elsevier B.V. All rights reserved.