butylmethyldiethoxysilane | 42496-20-8

• 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: butylmethyldiethoxysilane
• 英文别名: methylbutyldiethoxysilane；Butyl-diethoxy-methylsilane
• CAS: 42496-20-8
• 化学式: C₉H₂₂O₂Si
• 分子量: 190.358
• InChiKey: AFNPFLDWLMEASV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.93
• 重原子数：
  12
• 可旋转键数：
  7
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  甲基三乙氧基硅烷 、 正丁基氯化镁 以 乙醚 为溶剂， 生成 butylmethyldiethoxysilane
  参考文献：
  名称：

  A Kinetic View of the Mechanism of the Grignard Reaction with Alkoxysilanes

  摘要：

  The kinetics of the reaction of n-butyl- and isopropylmagnesium chloride with alkyltriethoxysilanes (RSi(OEt)(3)) in diethyl ether were determined. The rate constants correlate well with the steric parameters E-s(Si). The resulting steric factors delta fit the range of available susceptibility values for the reactions of organosilicon compounds. The thermodynamic activation parameters for six reactions of ethoxysilanes with alkylmagnesium chlorides in dibutyl ether were determined. The entropy values indicated that two Grignard molecules are involved in the transition state of the reaction. From the correlation analysis of the activation enthalpies for the reactions, it appeared that the inductive effect controls the rate of replacement more considerably than steric requirements in the transition state.

  DOI：

  10.1080/10426507.2014.952002

文献信息

• A Kinetic View of the Mechanism of the Grignard Reaction with Alkoxysilanes
  作者：Anu Ploom、Ants Tuulmets、Dmitri Panov、Peeter Burk

  DOI：10.1080/10426507.2014.952002

  日期：2015.4.3

  The kinetics of the reaction of n-butyl- and isopropylmagnesium chloride with alkyltriethoxysilanes (RSi(OEt)(3)) in diethyl ether were determined. The rate constants correlate well with the steric parameters E-s(Si). The resulting steric factors delta fit the range of available susceptibility values for the reactions of organosilicon compounds. The thermodynamic activation parameters for six reactions of ethoxysilanes with alkylmagnesium chlorides in dibutyl ether were determined. The entropy values indicated that two Grignard molecules are involved in the transition state of the reaction. From the correlation analysis of the activation enthalpies for the reactions, it appeared that the inductive effect controls the rate of replacement more considerably than steric requirements in the transition state.