dimethylethylsilyl acetate | 7016-73-1

• 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: dimethylethylsilyl acetate
• 英文别名: acetic acid-(ethyl-dimethyl-silanyl ester)；Essigsaeure-(aethyl-dimethyl-silylester)；Acetoxy-aethyl-dimethyl-silan；ethyldimethylsilyl acetate；[Ethyl(dimethyl)silyl] acetate
• CAS: 7016-73-1
• 化学式: C₆H₁₄O₂Si
• 分子量: 146.261
• InChiKey: JHWYROQBMRFKJE-UHFFFAOYSA-N

物化性质

• 沸点：
  125-126 °C
• 密度：
  0.9089 g/cm3

计算性质

• 辛醇/水分配系数(LogP)：
  1.77
• 重原子数：
  9
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.83
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  二氯乙酸 、 dimethylethylsilyl acetate 以 氘代氯仿 为溶剂， 生成
  参考文献：
  名称：

  酰氧基三甲基硅烷与羧酸的酰氧基交换反应的动力学研究

  摘要：

  已经对酰氧基硅烷与羧酸的酰氧基交换反应进行了动力学研究。已经发现，使用更强的攻击性酸和更碱性的离开酰氧基，反应速率进行得更快。通过加入碱显着加快了速率。已经检查了由于硅原子上的取代基和氢-氘动力学同位素效应引起的空间效应。已经提出了在决定速率的质子转移之前涉及硅原子的 5 配位的机制。

  DOI：

  10.1246/bcsj.52.1950
• 作为产物：
  描述：

  乙酸三甲基硅甲基酯 生成 dimethylethylsilyl acetate
  参考文献：
  名称：

  FTIR study of thermally induced transformations of trimethylsilylmethyl acetate in the temperature range 623–813 K

  摘要：

  The chemistry of trimethylsilylmethyl acetate in the gas phase in the temperature range 623-813 K has been investigated under static conditions using Fourier transform IR spectroscopy. Little change occurs at temperatures lower than 623 K, at which temperature a thermally induced isomerization to form ethyldimethylsilyl acetate occurs. Some ethanoic acid is also produced at this temperature. The ethyldimethylsilyl acetate produced undergoes thermolysis at temperatures > 723 K giving methane, ethene, carbon monoxide, carbon dioxide, ethanoic acid, 1,3-diethyl-1,1,3,3-tetramethyldisiloxane, cyclohexamethyltrisiloxane, and cyclo-octamethyltetrasiloxane as products. Loss of ethyldimethylsilyl acetate is first order over the whole temperature range, and first-order rate constants vary from 4.87 x 10(-5) s(-1) at 723 K to 33.5 x 10-5 s(-1) at 813 K, respectively, leading to an activation energy, E-a, of 110(4) kJ mol(-1). An intramolecular five-centre process is proposed for the isomerization reaction. The thermolysis is interpreted in terms of principally radical reactions involving initial homolytic dissociation of the EtMe2SiO-C(O)CH3 bond. (C) 2000 Elsevier Science S.A. All rights reserved.

  DOI：

  10.1016/s0022-328x(99)00762-7

文献信息

• Zur synthese von siloxanen
  作者：U. Scheim、H. Grosse-Ruyken、K. Rühlmann、A. Porzel

  DOI：10.1016/0022-328x(85)80242-4

  日期：1985.9

  The acetolysis reactions of compounds of the type XSiMe2Cl (I) with acetic acid in the presence of acetic anhydride were studied kinetically by means of 1H NMR spectroscopy. We found these reactions exclusively influenced by steric effects (ϱ = 0)

  通过1 H NMR光谱动力学研究了XSiMe 2 Cl（I）型化合物在乙酸酐存在下与乙酸的乙酰化反应。我们发现这些反应仅受空间位阻影响（ϱ = 0）
• Ruehlmann, K., Phosphorus and Sulfur and the Related Elements, 1986, vol. 27, p. 139 - 152
  作者：Ruehlmann, K.

  DOI：——

  日期：——
• Orlov,N.F. et al., Journal of general chemistry of the USSR, 1966, vol. 36, p. 1089 - 1092
  作者：Orlov,N.F. et al.

  DOI：——

  日期：——
• 687. Organosilyloxy-derivatives of metals. Part I. Alkylsilyloxy-derivatives of titanium, zirconium, niobium, and tantalum
  作者：D. C. Bradley、I. M. Thomas

  DOI：10.1039/jr9590003404

  日期：——
• Orlov,N.F.; Mileshkevich,V.P., Journal of general chemistry of the USSR, 1966, vol. 36, p. 713 - 717
  作者：Orlov,N.F.、Mileshkevich,V.P.

  DOI：——

  日期：——