1,1,4,4-tetraphenyl-1,2,2,3,3,4-hexamethyltetrasilane | 126210-36-4

• 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: 1,1,4,4-tetraphenyl-1,2,2,3,3,4-hexamethyltetrasilane
• 英文别名: 1,2,2,3,3,4-Hexamethyl-1,1,4,4-tetraphenyltetrasilane；[dimethyl-[methyl(diphenyl)silyl]silyl]-dimethyl-[methyl(diphenyl)silyl]silane
• CAS: 126210-36-4
• 化学式: C₃₀H₃₈Si₄
• 分子量: 510.974
• InChiKey: QCQNXHWTQZMIQW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.42
• 重原子数：
  34
• 可旋转键数：
  7
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.2
• 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：

  2,6-二甲基苯基异腈 、 1,1,4,4-tetraphenyl-1,2,2,3,3,4-hexamethyltetrasilane 在 palladium diacetate 1,1,3,3-四甲基丁基异腈 作用下， 以 甲苯 为溶剂， 反应 6.0h， 以28%的产率得到2,2,4,4-tetramethyl-3,3-bis(methyldiphenylsilyl)-1-(2,6-xylyl)-1-aza-2,4-disilacyclobutane
  参考文献：
  名称：

  四硅烷与芳基异氰酸酯的新型骨架重排反应

  摘要：

  在钯与芳基异氰化物催化的反应中，四硅烷的新型骨架重排产生3,3-二甲硅烷基-2,4-二硅-1-氮杂环丁烷衍生物，其一个实例的结构已通过X射线晶体学确定。

  DOI：

  10.1039/c39890001494

文献信息

• Novel skeletal rearrangement reaction of tetrasilanes with aryl isocyanides
  作者：Yoshihiko Ito、Michinori Suginome、Masahiro Murakami、Motoo Shiro

  DOI：10.1039/c39890001494

  日期：——

  A novel skeletal rearrangement of tetrasilanes in the palladium catalysed reaction with aryl isocyanides gives 3,3-disilyl-2,4-disila-1-azacyclobutane derivatives, the structure of one example of which has been determined by X-ray crystallography.

  在钯与芳基异氰化物催化的反应中，四硅烷的新型骨架重排产生3,3-二甲硅烷基-2,4-二硅-1-氮杂环丁烷衍生物，其一个实例的结构已通过X射线晶体学确定。
• ITO, YOSHIHIKO;SUGINOME, MICHINORI;MURAKAMI, MASAHIRO;SHIRO, MOTOO, J. CHEM. SOC. CHEM. COMMUN.,(1989) N9, C. 1494-1495
  作者：ITO, YOSHIHIKO、SUGINOME, MICHINORI、MURAKAMI, MASAHIRO、SHIRO, MOTOO

  DOI：——

  日期：——
• 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.