trifluorosilyl methyl carbanion | 123324-75-4

• 分子结构分类: 无机化合物 - 均质非金属化合物 - 其他非金属卤化物
• 英文名称: trifluorosilyl methyl carbanion
• CAS: 123324-75-4
• 化学式: CH₂F₃Si
• 分子量: 99.1076
• InChiKey: PXGTUYOKVQLJOA-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.21
• 重原子数：
  5.0
• 可旋转键数：
  0.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  trifluorosilyl methyl carbanion 生成 F2Si=CH2 、 alkaline earth salt of/the/ methylsulfuric acid
  参考文献：
  名称：

  How strong is the silicon carbon double bond in fluoro- and methyl-substituted silaethylenes? An experimental determination of .pi. bond strengths

  摘要：

  DOI：

  10.1021/ja00161a002
• 作为产物：
  描述：

  甲基三氟硅烷 在 三氟化氮 作用下， 生成 trifluorosilyl methyl carbanion
  参考文献：
  名称：

  A gas-phase anionic analog of the wittig reaction. An ion cyclotron resonance study of the gas-phase ion chemistry of silyl carbanions

  摘要：

  AbstractGas‐phase ion–molecule reactions of a variety of fluorosilyl carbanions with compounds containing double bonds to oxygen, XO, have been examined using pulsed ion cyclotron resonance spectroscopy. The predominant reaction channel observed for species not containing acidic hydrogens is a Wittig‐like process involving SiO bond formation and elimination of XCH2 species. The gas‐phase acidity of F3Si(CH3) has been determined and those of F2Si(CH3)2 and FSi(CH3)3 have been estimated. From the fluoride transfer reactions of F3SiCH2− the fluoride affinity of F2SiCH2 has been estimated and limits on the π bond strength in this silaethene obtained. Potential analytical applications of the Wittig reactivity have been discussed.

  DOI：

  10.1002/oms.1210230907