(1,1,4,4-tetrakis(trimethylsilyl)butane-1,4-diyl)2Ge2O2 | 700875-06-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 金属杂环化合物
• 英文名称: (1,1,4,4-tetrakis(trimethylsilyl)butane-1,4-diyl)2Ge2O2
• 英文别名: [1,4,4,8,8,11,11-heptakis(trimethylsilyl)-6,12-dioxa-5,7-digermadispiro[4.1.47.15]dodecan-1-yl]-trimethylsilane
• CAS: 700875-06-5
• 化学式: C₃₂H₈₀Ge₂O₂Si₈
• 分子量: 866.85
• InChiKey: QZJIMFPRVUIFRN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  12.49
• 重原子数：
  44
• 可旋转键数：
  8
• 环数：
  3.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  (1,1,4,4-tetrakis(trimethylsilyl)butane-1,4-diyl)Ge(2,2,6,6-tetramethylpiperidine N-oxide)2 以 氘代甲苯 为溶剂， 以68%的产率得到(1,1,4,4-tetrakis(trimethylsilyl)butane-1,4-diyl)2Ge2O2
  参考文献：
  名称：

  Diverse reactions of nitroxide-radical adducts of silylene, germylene, and stannylene

  摘要：

  The results of the thermolysis of 1:2 adducts of stable group-14 element divalent compounds [R(2)M:, R(2) = 1, 1 4,4-tetrakis(trimethylsilyl)butane-1.4-diyl; 1b, M = Ge; 1c, M = Sn] to TEMPO radical are discussed in detail. Whereas the thermal reactions of the 1:2 aducts [R(2)M(OR')(2), R' = 2,2,6,6-tetramethylpiperidin-N-yl; 3b, M - Ge; 3c, M = Sn] are understood to proceed by the initial homolysis of an M-O bond to give the corresponding aminoxy-substituted group-14 element radicals [R(2)(R'O)M(.); 2b, M = Ge; 2c, M = Sn] and TEMPO. the subsequent reactions of 2b and 2c were remarkably different to each other; 2b favors the N-O bond fission (path b) to give the corresponding germanone, while 2c prefers the M-O bond fission (path a) to give stannylene (1c). In combining with our previous results for aminoxysilyl radical (2a) [R(2)(R'O)Si], the origin of the remarkable differences in the reactivity among group-14 element radicals 2a-2c is discussed on the basis of the theoretical calculations for model reactions.Improved syntheses of the precursor dichlorogermane and dichlorostannane of germylene (1b) and stannylene (1c), respectively, are described in Section 3. (C) 2004 Elsevier B,V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2003.12.025

文献信息

• Diverse reactions of nitroxide-radical adducts of silylene, germylene, and stannylene
  作者：Takeaki Iwamoto、Hidenori Masuda、Shintaro Ishida、Chizuko Kabuto、Mitsuo Kira

  DOI：10.1016/j.jorganchem.2003.12.025

  日期：2004.4

  The results of the thermolysis of 1:2 adducts of stable group-14 element divalent compounds [R(2)M:, R(2) = 1, 1 4,4-tetrakis(trimethylsilyl)butane-1.4-diyl; 1b, M = Ge; 1c, M = Sn] to TEMPO radical are discussed in detail. Whereas the thermal reactions of the 1:2 aducts [R(2)M(OR')(2), R' = 2,2,6,6-tetramethylpiperidin-N-yl; 3b, M - Ge; 3c, M = Sn] are understood to proceed by the initial homolysis of an M-O bond to give the corresponding aminoxy-substituted group-14 element radicals [R(2)(R'O)M(.); 2b, M = Ge; 2c, M = Sn] and TEMPO. the subsequent reactions of 2b and 2c were remarkably different to each other; 2b favors the N-O bond fission (path b) to give the corresponding germanone, while 2c prefers the M-O bond fission (path a) to give stannylene (1c). In combining with our previous results for aminoxysilyl radical (2a) [R(2)(R'O)Si], the origin of the remarkable differences in the reactivity among group-14 element radicals 2a-2c is discussed on the basis of the theoretical calculations for model reactions.Improved syntheses of the precursor dichlorogermane and dichlorostannane of germylene (1b) and stannylene (1c), respectively, are described in Section 3. (C) 2004 Elsevier B,V. All rights reserved.