1,1-bis(N-(dimethylamino)pivaloimidato-N',O)silacyclobutane

• 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-bis(N-(dimethylamino)pivaloimidato-N',O)silacyclobutane
• 英文别名: [1-[(Z)-C-tert-butyl-N-(dimethylamino)carbonimidoyl]oxysiletan-1-yl] (1Z)-N,N,2,2-tetramethylpropanehydrazonate
• 化学式: C₁₇H₃₆N₄O₂Si
• 分子量: 356.584
• InChiKey: GWPACIMGVJIQHC-DJTQBEGKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.71
• 重原子数：
  24
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  49.7
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  1,1-bis(N-(dimethylamino)pivaloimidato-N',O)silacyclobutane 在 四氯化锗 作用下， 以 氘代氯仿 为溶剂， 反应 0.33h， 生成 、 1，1-二氯硅基环丁烷
  参考文献：
  名称：

  Hexacoordinate Silacyclobutane Dichelate Complexes: Structure, Properties, and Ligand Crossover

  摘要：

  Hexacoordinate dichelate silacyclobutane complexes have been synthesized from dichlorosilacyclobutrine and O-trimethylsilylated hydrazides by transsilylation. Like previously reported hexacoordinate silicon complexes, they readily and quantitatively undergo ligand exchange with other silicon compounds (XSiCl3 and differently substituted O-trimethylsilylated hydrazides), evidence that ionic dissociation does not play a significant role in the exchange mechanism. Germanium tetrachloride causes central-element exchange and formation of analogous hexacoordinate germanium complexes. Likewise, silicon tetrachloride replaces germanium from its hexacoordinate complexes, obeying certain selectivity constraints. When silicon complexes have strongly electron-withdrawing chelate-ring substituents (CF3 or CH2CN), GeCl4 causes, in addition to central-element exchange, also oxidative opening of the four-membered ring and addition of two chlorine atoms. Both chelate exchange and central-element exchange are shown to be dominated by monodentate ligand priorities.

  DOI：

  10.1021/om101081u
• 作为产物：
  描述：

  Me3SiOC(tBu)NNMe2 、 1，1-二氯硅基环丁烷 以 氯仿 为溶剂， 反应 2.0h， 以98%的产率得到1,1-bis(N-(dimethylamino)pivaloimidato-N',O)silacyclobutane
  参考文献：
  名称：

  Hexacoordinate Silacyclobutane Dichelate Complexes: Structure, Properties, and Ligand Crossover

  摘要：

  Hexacoordinate dichelate silacyclobutane complexes have been synthesized from dichlorosilacyclobutrine and O-trimethylsilylated hydrazides by transsilylation. Like previously reported hexacoordinate silicon complexes, they readily and quantitatively undergo ligand exchange with other silicon compounds (XSiCl3 and differently substituted O-trimethylsilylated hydrazides), evidence that ionic dissociation does not play a significant role in the exchange mechanism. Germanium tetrachloride causes central-element exchange and formation of analogous hexacoordinate germanium complexes. Likewise, silicon tetrachloride replaces germanium from its hexacoordinate complexes, obeying certain selectivity constraints. When silicon complexes have strongly electron-withdrawing chelate-ring substituents (CF3 or CH2CN), GeCl4 causes, in addition to central-element exchange, also oxidative opening of the four-membered ring and addition of two chlorine atoms. Both chelate exchange and central-element exchange are shown to be dominated by monodentate ligand priorities.

  DOI：

  10.1021/om101081u

文献信息

• Hexacoordinate Silacyclobutane Dichelate Complexes: Structure, Properties, and Ligand Crossover
  作者：Shiri Yakubovich、Boris Gostevskii、Inna Kalikhman、Mark Botoshansky、Leonid E. Gusel’nikov、Vadim A. Pestunovich、Daniel Kost

  DOI：10.1021/om101081u

  日期：2011.2.14

  Hexacoordinate dichelate silacyclobutane complexes have been synthesized from dichlorosilacyclobutrine and O-trimethylsilylated hydrazides by transsilylation. Like previously reported hexacoordinate silicon complexes, they readily and quantitatively undergo ligand exchange with other silicon compounds (XSiCl3 and differently substituted O-trimethylsilylated hydrazides), evidence that ionic dissociation does not play a significant role in the exchange mechanism. Germanium tetrachloride causes central-element exchange and formation of analogous hexacoordinate germanium complexes. Likewise, silicon tetrachloride replaces germanium from its hexacoordinate complexes, obeying certain selectivity constraints. When silicon complexes have strongly electron-withdrawing chelate-ring substituents (CF3 or CH2CN), GeCl4 causes, in addition to central-element exchange, also oxidative opening of the four-membered ring and addition of two chlorine atoms. Both chelate exchange and central-element exchange are shown to be dominated by monodentate ligand priorities.