tetrakis(2-tert-butyl-4,5,6-trimethyl-phenyl)digermene | 191403-45-9

• 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: tetrakis(2-tert-butyl-4,5,6-trimethyl-phenyl)digermene
• 英文别名: 1,1,2,2-Tetrakis(6-(tert-butyl)-2,3,4-trimethylphenyl)digermene；bis(6-tert-butyl-2,3,4-trimethylphenyl)germylidene-bis(6-tert-butyl-2,3,4-trimethylphenyl)germane
• CAS: 191403-45-9
• 化学式: C₅₂H₇₆Ge₂
• 分子量: 846.355
• InChiKey: KPAXEWJZLFEUJB-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  11.57
• 重原子数：
  54
• 可旋转键数：
  8
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.54
• 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：

  tetrakis(2-tert-butyl-4,5,6-trimethyl-phenyl)digermene 以 苯 为溶剂， 生成
  参考文献：
  名称：

  Della Bona, M. Antonietta; Cassani, M. Cristina; Keates, Julian M., Journal of the Chemical Society, Dalton Transactions, 1998, # 7, p. 1187 - 1190

  摘要：

  DOI：
• 作为产物：
  描述：

  germanium(II) chloride dioxane 、 2-tert-butyl-4,5,6-trimethylphenylmagnesium bromide 以 四氢呋喃 为溶剂， 以73%的产率得到tetrakis(2-tert-butyl-4,5,6-trimethyl-phenyl)digermene
  参考文献：
  名称：

  锗和锡的化合物2l。具有短锗-锗双键且两个锗原子几乎处于平面环境的四芳基二茂铁† ‡

  摘要：

  用格氏试剂RMgBr（R = 2- t Bu-4,5,6-Me 3 C 6 H）处理GeCl 2 ·二恶烷提供了四芳基二聚甲醛R 2 GeGeR 2（8）。X射线的8结构分析表明，GeGe双键短，锗原子几乎处于平面环境，CGeC角极宽，为128°。在溶液中，8分解为两个亚二甲苯基分子R 2 Ge，可以被氧捕获或通过与1，4-二杂-1，3-二烯的[4 + 1]环加成反应捕获。一个stannylene WA的类似环加成由（R的热解获得的' 2 Sn）的3（R'＝2,4,6 - i Pr 3 C 6 H 2），在1,4-二氮杂丁二烯存在下，通过X射线结构分析来表征。

  DOI：

  10.1002/cber.19971300610

文献信息

• Cycloadditions of Diarylgermylenes to a Diazabutadiene [1]
  作者：Annika Arndt、Helmut Schäfer、Wolfgang Saak、Manfred Weidenbruch

  DOI：10.1002/zaac.200400527

  日期：2005.6

  molecules 2 in solution, with 1,4-diisopropyl-1,4-diazabuta-1,3-diene (3) furnishes the [4+1] cycloaddition product of 2 to the nitrogen atoms of 3. Under drastic conditions tetrakis(2,4,6-triisopropylphenyl)digermene also forms the germylene molecules 6 which react with 3 in a similar fashion to afford the corresponding [4+1] cycloadduct.

  四（2-叔丁基-4,5,6-三甲基苯基）二锗烯与 1,4-二异丙基-1,4-二氮杂丁烷-1,3-二烯（在溶液中分解成锗烯分子 2）的反应（ 3) 向 3 的氮原子提供 2 的 [4 + 1] 环加成产物。在剧烈条件下，四 (2,4,6-三异丙基苯基) 二锗烯还形成了亚锗烯分子 6，它与 3 以类似的方式反应得到相应的 [4 + 1] 环加合物。
• Reaction of a diarylgermylene with a phosphaalkyne: formation of a germadiphosphacyclobutene with an exocyclic CGe double bond
  作者：Frank Meiners、Wolfgang Saak、Manfred Weidenbruch

  DOI：10.1039/b008472g

  日期：——

  The reaction of bis(2-tert-butyl-4,5,6-trimethylphenyl)germylene (Ar2Ge:) with tert-butylphosphaalkyne furnishes a germadiphosphacyclobutene derivative with an exocyclic –C(But)GeAr2 group at one phosphorus atom, which was characterised by an X-ray structure analysis.

  双（2-叔丁基-4,5,6-三甲基苯基）胚芽烯（Ar2Ge:）与叔丁基膦炔反应生成了一种胚芽二磷环丁烯衍生物，其中一个磷原子上带有外环-C(But)GeAr2 基团。
• ——
  作者：Frank Meiners、Wolfgang Saak、Manfred Weidenbruch

  DOI：10.1002/1521-3749(200213)628:13<2821::aid-zaac2821>3.0.co;2-m

  日期：——

  The reaction of tetrakis(2-tert-butyl-4,5,6-trimethylphenyl)digermene, which dissociates into germylene molecules in solution, with hexafluorobut-2-yne furnishes the corresponding germacyclopropene 3 by a [1 + 2] cycloaddition of the germylene to the CdropC triple bond. The X-ray structure analysis of 3 reveals a short C=C double bond length of 132.4(5) pm and an acute C-Ge-C bond angle of 39.93(14)degrees.
• Cycloaddition Reactions of an Acetylene-Linked Bis(germaethene)¹^,²
  作者：Frank Meiners、Detlev Haase、Rainer Koch、Wolfgang Saak、Manfred Weidenbruch

  DOI：10.1021/om020320m

  日期：2002.9.1

  3,5-Di-tert-butyl-1,2-benzoquinone reacts with the acetylene-linked bis(germaethene) Ar2Ge=C(R)-Cequivalent toC-C(R)=GeAr2, R=C6H5, Ar = 2-tBu-4,5,6-Me3C6H (4), in a [4+2] fashion to furnish the sterically crowded product 5 of 2-fold cycloaddition to the Ge=C bonds. The reaction of 4 with 1,2-dicyanoethylene proceeds differently, namely, by [2+4] cycloaddition of one of the Cequivalent toN bonds to the Ge=C and Cequivalent toC bonds, followed by a [2+2] cycloaddition of the remaining Ge=C bond to the newly formed C=C bond to give the bicyclic compound 6. An unprecedented C-H activation of a tert-butyl and an aryl C-H bond leads finally to the hexacyclic compound 8 via the tetracyclic product 7. Cyanogen gas reacts similarly by [2+4] and [2+2] cycloadditions to furnish the bicyclic compound 9. In this case, no C-H addition to the endocyclic C=N bond is observed.
• Acetylene-Linked Bis(germaethenes):  The First Molecules with Conjugated Germanium−Carbon Double Bonds¹
  作者：Frank Meiners、Wolfgang Saak、Manfred Weidenbruch

  DOI：10.1021/om000284w

  日期：2000.7.1

  In solution, the digermene Ar2Ge=GeAr2 (Ar = 2-tBu-4,5,6-Me3C6H) partly dissociates into two molecules of the germylene Ar2Ge:. The reaction of this digermene with some 1,3-diynes (RC equivalent to C-)(2) Leads to the formation of the acetylene-linked bis(germaethenes) Ar2Ge=C(R)C equivalent to C(R)C=GeAr2 (R = n-C4H9 (6a), C6H5 (6b)). The conjugation between the two Ge=C units is reflected by the positions of the UV/vis absorptions at Longest wavelengths of 518 (6a) and 595 (6b) nm. An X-ray structure analysis of 6a reveals a nearly linear C-4 skeleton and short Ge=C bond lengths of 1.819(2) Angstrom.