1,1,2,2-tetrakis(2,6-dimethylphenyl)disilene | 80593-68-6

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 1,1,2,2-tetrakis(2,6-dimethylphenyl)disilene
• 英文别名: tetrakis-1,1,2,2-(2,6-dimethylphenyl)disilane；tetra(2,6-dimethylphenyl)disilene；Tetrakis(2,6-dimethylphenyl)disilene；bis(2,6-dimethylphenyl)silylidene-bis(2,6-dimethylphenyl)silane
• CAS: 80593-68-6
• 化学式: C₃₂H₃₆Si₂
• 分子量: 476.809
• InChiKey: BWTXFXHZEHIUTG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.15
• 重原子数：
  34
• 可旋转键数：
  4
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  1,1,2,2-tetrakis(2,6-dimethylphenyl)disilene 在 一氧化二氮 作用下， 以 苯 为溶剂， 生成 2,2,3,3-Tetrakis-(2,6-dimethyl-phenyl)-oxadisilirane
  参考文献：
  名称：

  Disilaoxiranes: synthesis and crystal structure

  摘要：

  DOI：

  10.1021/ja00256a058
• 作为产物：
  描述：

  1,1,2,2,3,3-Hexakis-(2,6-dimethyl-phenyl)-trisilirane 反应 0.08h， 生成 1,1,2,2-tetrakis(2,6-dimethylphenyl)disilene
  参考文献：
  名称：

  Cyclotrisilane (R2Si)3 and disilene (R2Si:SiR2) system: synthesis and characterization

  摘要：

  DOI：

  10.1021/ja00368a065

文献信息

• Silicon-29 NMR observation of an unprecedented rearrangement in tetraaryldisilenes
  作者：Howard B. Yokelson、Jim. Maxka、David A. Siegel、Robert. West

  DOI：10.1021/ja00274a074

  日期：1986.7

  The authors report here the first observation of a facile intramolecular rearrangement of tetraaryldisilenes involving the exchange of two aryl substituents between the silicon atoms of the silicon-silicon double bond. The disilenes were generated photochemically by irradiation of their trisilane precursors in pentane solution at -60/sup 0/C and the crude photolysates were examined by /sup 29/Si NMR

  作者在此报告了首次观察到的四芳基二硅烯的简单分子内重排，涉及硅 - 硅双键的硅原子之间的两个芳基取代基的交换。通过在-60/sup 0/C 的戊烷溶液中辐照它们的丙硅烷前体以光化学方式生成二硅烷，并且通过苯中的/sup 29/Si NMR 检查粗光解产物。通过丙硅烷的光解产生两种纯二硅烷，并且在每种情况下在二硅烷区域中仅给出单个 /sup 29/Si 信号，分别为 63.68 和 64.06 ppm。当照射等摩尔的两种丙硅烷的混合物时，最初在二硅烷区域 (60-65 ppm) 中观察到四个信号，强度比约为 1:1:1:1。
• The synthesis and molecular structure of a disilacyclopropanimine
  作者：Howard B. Yokelson、Anthony J. Millevolte、Kenneth J. Haller、Robert West

  DOI：10.1039/c39870001605

  日期：——

  Tetra(2,6-dimethylphenyl)disilene reacts with (2,6-dimethylphenyl)isocyanide in benzene solution at room temperature to form disilacyclopropanimine (1), a bright red crystalline compound with λmax=; 510nm, whose structure was established by X-ray crystallography.

  在室温下，四（2,6-二甲基苯基）二甲苯与（2,6-二甲基苯基）异氰酸酯在苯溶液中反应生成二硅烷基环丙胺（1），一种亮红色的结晶化合物，λmax =; 510nm，其结构通过X射线晶体学确定。
• 1,2-Disiladioxetanes: structure, rearrangement and reactivity
  作者：Kristen L. McKillop、Gregory R. Gillette、Douglas R. Powell、Robert West

  DOI：10.1021/ja00039a035

  日期：1992.6

  The low-temperature reaction of (E)-1,2-dimesityl-1,2-di-tert-butyldisilene (1a) with dioxygen gives (E)-1,2-dimesityl-1,2-di-tert-butyldisiladioxetane (2a), the structure of which has been established by X-ray crystallographic analysis. This result establishes that both oxidation of la and rearrangement of 2a to 1,3-cyclodisiloxane 4a take place with retention of configuration at silicon. Disiladioxetane 2a forms monoclinic crystals, space group C2/c. Extra electron density found above and below the Si-Si bond was shown by H-1 and solid-state Si-29 NMR to be due to 4a, arising from rearrangement of 2a in the solid. X-ray crystal structures were determined for crystals that were 5.6%, 15.2%, and 20.3% rearranged. Cell dimensions for the 5.6% rearranged crystal are a = 12.549 (7) angstrom, b = 12.174 (7) angstrom, c = 17.133 (7) angstrom, b = 103.94 (4)-degrees, V = 2529 (2) angstrom3 (Z = 4). The rearrangement of 2a in solution is first order with E(a) = +21.7 +/- 1.0 kcal mol-1, DELTA-H(double dagger) = 21.1 +/- 1.4 kcal mol-1, and DELTA-S(double dagger) = -9.0 +/- 4.5 cal K-1 mol-1. Isotope labeling studies with O-18 showed the rearrangement to be intramolecular in the solid and in solution. In the presence of phosphines or sulfides, 2a is partially deoxygenated to form disilaoxirane 3a.
• MASAMUNE, SATORU;HANZAWA, YUJI;MURAKAMI, SHU;BALLY, T.;BLOUNT, J. F., J. AMER. CHEM. SOC., 1982, 104, N 4, 1150-1153
  作者：MASAMUNE, SATORU、HANZAWA, YUJI、MURAKAMI, SHU、BALLY, T.、BLOUNT, J. F.

  DOI：——

  日期：——
• JOSIRO, MITSUO, CHEM. AND CHEM. IND., 1982, 35, N 8, 581
  作者：JOSIRO, MITSUO

  DOI：——

  日期：——