trimethylsilyl 3,5-dimethyl-1H-pyrazole-1-carboxylate | 1331844-38-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 唑类
• 英文名称: trimethylsilyl 3,5-dimethyl-1H-pyrazole-1-carboxylate
• 英文别名: Trimethylsilyl 3,5-dimethylpyrazole-1-carboxylate
• CAS: 1331844-38-2
• 化学式: C₉H₁₆N₂O₂Si
• 分子量: 212.324
• InChiKey: RUZHWYIDUKDLMQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.32
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.56
• 拓扑面积：
  44.1
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  3,5-二甲基吡唑 、 trimethylsilyl diethylcarbamate 以93%的产率得到trimethylsilyl 3,5-dimethyl-1H-pyrazole-1-carboxylate
  参考文献：
  名称：

  Unusual course of diazolees silylation and N-siloxycarbonylation

  摘要：

  The N-siloxycarbonylation and transamination reactions were studied by an example of diazoles. We found that because of insufficient nucleophilicity of the nitrogen atoms in the first case only the sililylation process occurs, in the second case the low-boiling amine is replaced by the higher boiling one and the process is completed by the formation of O-silyluretans.

  DOI：

  10.1134/s1070363211070140

文献信息

• Chemical transformations of diazoles in the reactions of carboxylation, N-siloxycarbonylation, and transsilylation
  作者：L. O. Belova、M. V. Pletnev、A. D. Kirilin

  DOI：10.1134/s1070363213070116

  日期：2013.7

  The behavior of 3,5-dimethylpyrazole, 3(5)-methylpyrazole, imidazole and their trimethyl-silyl derivatives in carboxylation, N-siloxycarbonylation, and transsilylation reactions was studied. A new Nsiloxycarbonylation reagent, diazole trimethylsilyl derivative-carbon dioxide, was found. This reagent makes it possible to obtain easily O-silylurethanes starting from primary, secondary amines and hydrazine derivatives, as well as to develop a convenient one pot synthesis method for trimethylsiloxycarbonyldiazoles.