cyclo-[Me2SiOSi(Ot-Bu)2O]2 | 32494-46-5

• 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: cyclo-[Me2SiOSi(Ot-Bu)2O]2
• 英文别名: 2,2,6,6-Tetramethyl-4,4,8,8-tetrakis[(2-methylpropan-2-yl)oxy]-1,3,5,7,2,4,6,8-tetraoxatetrasilocane；2,2,6,6-tetramethyl-4,4,8,8-tetrakis[(2-methylpropan-2-yl)oxy]-1,3,5,7,2,4,6,8-tetraoxatetrasilocane
• CAS: 32494-46-5
• 化学式: C₂₀H₄₈O₈Si₄
• 分子量: 528.938
• InChiKey: QOUPQTGUBIQBOL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.6
• 重原子数：
  32
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  73.8
• 氢给体数：
  0
• 氢受体数：
  8

反应信息

• 作为反应物：
  描述：

  cyclo-[Me2SiOSi(Ot-Bu)2O]2 、 diisobutylaluminium hydride 以 四氢呋喃 、 氘代甲苯 为溶剂， 生成
  参考文献：
  名称：

  摘要：

  The six-, eight- and twelve-membered cyclo-siloxanes, cyclo-[R2SiOSi(Ot-Bu)(2)O](2) (R = Me (1), Ph (2)), cyclo-(t-BUO)(2)-Si(OSiR2)(2)O (R = Me (3), Ph (4)), cyclo-R2Si[OSi(Ot-Bu)(2)](2)O (R = Me (5), Ph (6)) and cyclo-[(t-BuO)(2)Si(OSiMe2)(2)O](2) (3a) were synthesized in high yields by the reaction of (t-BUO)2Si(OH)2 and [(t-BuO)(2)SiOH](2)O with R2SiCl2 and (R2SiCl)(2)O (R = Me, Ph). Compounds 1-6 were characterized by solution and solid-state Si-29 NMR spectroscopy, electrospray mass spectrometry and osmometric molecular weight determination. The molecular structure of 4 has been determined by single crystal X-ray diffraction and features a six-membered cyclo-siloxane ring that is essentially planar. The reduction of 1-6 with i-Bu2AlH (DIBAL-H) led to the formation of the metastable aluminosiloxane (t-BUO)(2)Si(OAli-Bu-2)(2) (7) along with Me2SiH2 and Ph2SiH2.

  DOI：

  10.1002/1521-3749(200213)628:13<2948::aid-zaac2948>3.0.co;2-7
• 作为产物：
  描述：

  di-t-butoxysilanediol 、 二氯二甲基硅烷 在 吡啶 作用下， 以 甲苯 为溶剂， 生成 cyclo-[Me2SiOSi(Ot-Bu)2O]2
  参考文献：
  名称：

  烷氧基硅烷。七、烷基烷氧基硅氧烷的制备

  摘要：

  三甲基甲硅烷氧基三叔丁氧基硅烷 (I)、双(三甲基甲硅烷氧基)二叔丁氧基硅烷 (II) 和双(三甲基甲硅烷氧基)双(三叔丁氧基甲硅烷氧基)硅烷 (III) 是通过三甲基氯硅烷与三叔丁氧基硅烷反应制备的-丁氧基硅烷醇、二叔丁氧基硅烷二醇和双(三叔丁氧基甲硅烷氧基)硅烷二醇。双（三叔丁氧基甲硅烷氧基）二甲基硅烷（IV）也通过二甲基二氯硅烷与三叔丁氧基硅烷醇的反应获得。二甲基二氯硅烷与二叔丁氧基硅烷二醇或双（三叔丁氧基甲硅烷氧基）硅烷二醇的反应得到四甲基四叔丁氧基（V）或四甲基四（三叔丁氧基甲硅烷氧基）环辛硅氧烷（VI）。这些化合物通过元素分析、分子量测定以及 IR 和 NMR 光谱的研究进行鉴定。

  DOI：

  10.1246/bcsj.44.1106

文献信息

• Alkoxysilanes. VII. The Preparation of Alkylalkoxysiloxanes
  作者：Ichiro Kijima、Keisuke Okuda、Yoshimoto Abe

  DOI：10.1246/bcsj.44.1106

  日期：1971.4

  Trimethylsiloxytri-t-butoxysilane (I), bis(trimethylsiloxy)di-t-butoxysilane (II), and bis(trimethylsiloxy)bis(tri-t-butoxysiloxy)silane (III) were prepared by the reaction of trimethylchlorosilane with tri-t-butoxysilanol, di-t-butoxysilanediol, and bis(tri-t-butoxysiloxy)silanediol respectively. Bis(tri-t-butoxysiloxy)dimethylsilane (IV) was also obtained by the reaction of dimethyldichlorosilane

  三甲基甲硅烷氧基三叔丁氧基硅烷 (I)、双(三甲基甲硅烷氧基)二叔丁氧基硅烷 (II) 和双(三甲基甲硅烷氧基)双(三叔丁氧基甲硅烷氧基)硅烷 (III) 是通过三甲基氯硅烷与三叔丁氧基硅烷反应制备的-丁氧基硅烷醇、二叔丁氧基硅烷二醇和双(三叔丁氧基甲硅烷氧基)硅烷二醇。双（三叔丁氧基甲硅烷氧基）二甲基硅烷（IV）也通过二甲基二氯硅烷与三叔丁氧基硅烷醇的反应获得。二甲基二氯硅烷与二叔丁氧基硅烷二醇或双（三叔丁氧基甲硅烷氧基）硅烷二醇的反应得到四甲基四叔丁氧基（V）或四甲基四（三叔丁氧基甲硅烷氧基）环辛硅氧烷（VI）。这些化合物通过元素分析、分子量测定以及 IR 和 NMR 光谱的研究进行鉴定。
• ——
  作者：Jens Beckmann、Dainis Dakternieks、Andrew Duthie、Edward R. T. Tiekink

  DOI：10.1002/1521-3749(200213)628:13<2948::aid-zaac2948>3.0.co;2-7

  日期：——

  The six-, eight- and twelve-membered cyclo-siloxanes, cyclo-[R2SiOSi(Ot-Bu)(2)O](2) (R = Me (1), Ph (2)), cyclo-(t-BUO)(2)-Si(OSiR2)(2)O (R = Me (3), Ph (4)), cyclo-R2Si[OSi(Ot-Bu)(2)](2)O (R = Me (5), Ph (6)) and cyclo-[(t-BuO)(2)Si(OSiMe2)(2)O](2) (3a) were synthesized in high yields by the reaction of (t-BUO)2Si(OH)2 and [(t-BuO)(2)SiOH](2)O with R2SiCl2 and (R2SiCl)(2)O (R = Me, Ph). Compounds 1-6 were characterized by solution and solid-state Si-29 NMR spectroscopy, electrospray mass spectrometry and osmometric molecular weight determination. The molecular structure of 4 has been determined by single crystal X-ray diffraction and features a six-membered cyclo-siloxane ring that is essentially planar. The reduction of 1-6 with i-Bu2AlH (DIBAL-H) led to the formation of the metastable aluminosiloxane (t-BUO)(2)Si(OAli-Bu-2)(2) (7) along with Me2SiH2 and Ph2SiH2.