1,1,1,2,3,4,4,4-octamethyl-2,2-diphenyl-tetrasilane | 40907-20-8

• 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: 1,1,1,2,3,4,4,4-octamethyl-2,2-diphenyl-tetrasilane
• 英文别名: 1,1,1,2,3,4,4,4-Octamethyl-2,3-diphenyltetrasilane；trimethyl-[methyl-(methyl-phenyl-trimethylsilylsilyl)-phenylsilyl]silane
• CAS: 40907-20-8
• 化学式: C₂₀H₃₄Si₄
• 分子量: 386.832
• InChiKey: PIMLKBZCMXUQKN-UHFFFAOYSA-N

物化性质

• 沸点：
  378.2±25.0 °C(Predicted)
• 密度：
  0.91±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.87
• 重原子数：
  24
• 可旋转键数：
  5
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.4
• 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：

  1,1,1,2,3,4,4,4-octamethyl-2,2-diphenyl-tetrasilane 生成 2-phenylheptamethyltrisilane
  参考文献：
  名称：

  OKINOSHIMA H.; WEBER W., J. ORGANOMETAL. CHEM., 1978, 155, NO 2, 165-173 D2#2#

  摘要：

  DOI：
• 作为产物：
  描述：

  三甲基氯硅烷 、 甲基苯基二氯硅烷 以 1,4-二氧六环 、 甲苯 为溶剂， 生成 1,1,1,2,3,4,4,4-octamethyl-2,2-diphenyl-tetrasilane
  参考文献：
  名称：

  Noireau, P.; Reyx, D., Bulletin des Societes Chimiques Belges, 1989, vol. 98, # 9-10, p. 795 - 802

  摘要：

  DOI：

文献信息

• Insertion of dimethylsilylene into OH and NH single bonds
  作者：Tai-yin Yang Gu、William P. Weber

  DOI：10.1016/s0022-328x(00)94358-4

  日期：1980.1

  dodecamethylcyclohexasilane, inserts efficiently into OH single bonds of alcohols to yield alkoxydimethylsilanes. Use of ethanol-O-d1 yields ethoxydimethylsilane-Si-d1. Dimethylsilylene also inserts into OH single bonds of water or D2O to yield respectively tetramethyldisiloxane or tetramethyldisiloxane-Si2-d2. Dimethylsilylene also inserts into NH bonds of primary and secondary amines to yield aminodimethylsilanes

  由十二甲基环己硅烷的光解反应生成的二甲基甲硅烷基可有效地插入醇的OH单键中，生成烷氧基二甲基硅烷。使用乙醇-O- d 1产生乙氧基二甲基硅烷-Si- d 1。二甲基亚甲硅烷也插入到水或dOH单键2 O操作得到分别四甲基二硅氧烷或四甲基二硅氧烷-硅2 - d 2。二甲基亚甲硅烷基也可插入伯胺和仲胺的NH键中，从而生成氨基二甲基硅烷。该反应提供了双官能硅烷的有效途径。
• Photolysis of heptamethyl-2-phenyltrisilane and octamethyl-2,3-diphenyltetrasilane in the presence of dimethyl sulfoxide
  作者：Hiroshige Okinoshima、William P. Weber

  DOI：10.1016/s0022-328x(00)93288-1

  日期：1978.8

  Photolysis of heptamethyl-2-phenyltrisilane and of octamethyl-2,3-diphenyltetrasilane in the presence of dimethyl sulfoxide (DMSO) occurs by two major pathways. The first involves loss of methylphenylsilylene, which reacts with DMSO to yield methylphenylsilanone and dimethyl sulfide. Methylphenylsilanone has been trapped by reaction with hexamethylcyclotrisiloxane (VII) to yield heptamethylphenylcyclotetrasiloxane

  在二甲基亚砜（DMSO）存在下，七甲基-2-苯基三硅烷和八甲基-2,3-二苯基四硅烷的光解发生通过两个主要途径。第一个涉及甲基苯基亚甲硅的损失，该甲基苯基亚甲硅与DMSO反应生成甲基苯基硅酮和二甲基硫醚。甲基苯基硅酮已通过与六甲基环三硅氧烷（VII）反应生成七甲基苯基环四硅氧烷和1,1,3,3-四甲基-2-氧杂-1,3-二硅环戊烷（XIII）反应生成1,1,3,5,5-五甲基-3-苯基-2,4-二氧代-1,3,5-三硅杂环庚烷。第二种途径涉及DMSO的氧对苯基取代的硅原子的亲核攻击，导致苯基迁移至相邻的硅原子，并形成甲基（三甲基甲硅烷基）硅酮和二甲基硫醚。通过与反应生成七甲基（三甲基硅烷基）环四硅氧烷，通过XIII生成1,1,3,5,5-五甲基-3-三甲基硅烷基-2,4-二氧杂-1,3，从而捕获了甲基（三甲基硅烷基）硅酮。 5-三硅环庚烷。考虑了这些反应的可能机制。
• Palladium-catalyzed insertion of isocyanides into the silicon-silicon linkages of oligosilanes
  作者：Yoshihiko Ito、Michinori Suginome、Takaharu Matsuura、Masahiro Murakami

  DOI：10.1021/ja00023a043

  日期：1991.11

  Full details of a study on the reactions of oligosilanes with isocyanides promoted by a palladium catalyst are described. Heating a mixture of oligosilanes and excess 2,6-disubstituted aryl isocyanide in the presence of palladium(II) acetate led to the complete insertion of isocyanide into all silicon-silicon linkages, giving oligo(silylimine) derivatives. The oligo(silylimine)s have been isolated and characterized so far in the complete insertion reaction with oligosilanes up to a hexasilane. Use of the limiting amount of isocyanide permitted insertion of isocyanide into predominantly the terminal silicon-silicon linkages. The mode of the insertion reaction depends on the substituent at the silicon, e.g., tetrasilanes with phenyl groups on the internal silicon atoms favorably underwent the insertion reaction at the terminal silicon-silicon linkages, resulting in the partial insertion. The bulkiness of the ortho substituents on the aromatic isocyanide was also found to have much influence on the insertion; hence, 2,6-diisopropylphenyl isocyanide favored the partial insertion. New skeletal rearrangement of oligosilanes took place in a palladium-catalyzed reaction of substituted aryl isocyanide with tetra- and hexasilanes, forming 3,3-bis(silyl)-l-aza-2, 4-disilacyclobutane derivatives. The rearrangement, which is unique and intriguing in that the product is properly reconstituted from four fragments of the tetrasilane and two fragments of the isocyanide, was promoted in the copresence of a tert-alkyl isocyanide.
• Base catalysed hydrogenation of methylbromooligosilanes with trialkylstannanes, identification of the first methylbromohydrogenoligosilanes
  作者：U. Herzog、G. Roewer

  DOI：10.1016/s0022-328x(96)06552-7

  日期：1997.1

  The Lewis base catalysed hydrogenation of methylchlorooligsilanes with trialkylstannanes can also be applied to the hydrogenation of methylbromooligosilanes. In this way methylbromohydrogenoligosilanes were prepared for the first time. Methylbromotrisilanes with an > SiBrMe middle group (e.g. SiBrMe(2)-SiBrMe-SiBrMe(2)) are hydrogenated first at this silicon atom under formation of an > SiHMe group (e.g. SiBrMe(2)-SiHMe-SiBrMe(2)). Brominated silanes containing a quarternary Si(Si)(4) unit (e.g. Si(SiBrMe(2))(4)) do not react with trialkylstannanes.
• GU T. Y.; WEBER W. P., J. ORGANOMETAL. CHEM., 1980, 184, NO 1, 7-11
  作者：GU T. Y.、 WEBER W. P.

  DOI：——

  日期：——