1,5-bis(3-ethoxypropyl)-1,1,3,3,5,5-hexamethyltrisiloxane | 1567764-55-9

• 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: 1,5-bis(3-ethoxypropyl)-1,1,3,3,5,5-hexamethyltrisiloxane
• 英文别名: Bis[[3-ethoxypropyl(dimethyl)silyl]oxy]-dimethylsilane
• CAS: 1567764-55-9
• 化学式: C₁₆H₄₀O₄Si₃
• 分子量: 380.748
• InChiKey: KNVICRUGHNSIMN-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.98
• 重原子数：
  23
• 可旋转键数：
  14
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  36.9
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  乙基烯丙基醚 、 1,1,3,3,5,5-六甲基三硅氧烷 在 cis-bis(dibenzyl sulfide)Pt(II) dichloride 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 生成 1-(1-methyl-2-ethoxyethyl)-1,1,3,3,5,5-hexamethyltrisiloxane 、 1-(1-methyl-2-ethoxyethyl)-5-(3-ethoxypropyl)-1,1,3,3,5,5-hexamethyltrisiloxane 、 1,5-bis(3-ethoxypropyl)-1,1,3,3,5,5-hexamethyltrisiloxane
  参考文献：
  名称：

  Spectral study of interaction between allyl ethers and hydrosiloxanes

  摘要：

  Interaction of allyl ethers with hydrosiloxanes in the presence of metal complexes has been investigated by spectral methods (H-1 NMR, IR, and GC-MS) as well as by gas-liquid chromatography. It has been shown that the anti-Markovnikov addition predominantly occurs in the studied cases; disproportionation of siloxanes and migration of double bond in the ethers have been identified as side reactions. The tendency to enter the side reactions has decreased in the following series: (HMeSiO)(4) > HMe2Si(OSiMe2)(2)H a parts per thousand HMe2SiOSiMe3 > (HMe2Si)(2)O > (Me3SiOSiMeH)(2)O. The general scheme of disproportionation of siloxanes HMe2Si(OSiMe2) (n) H (n a parts per thousand yen 1) has been proposed. According to mass spectrometry data, the silicon-containing fragment majorly contributes to the fragmentation of hydrosilylation products. Fragmentation of the gamma,gamma-adducts is similar to that of gamma-adducts. The predominant direction of fragmentation in the products of beta,gamma-addition of HMe2Si(OSiMe2)nH (n = 1-3) to allyl ethers is determined by fragmentation of the gamma-component of the molecule. The scheme of fragmentation of the hydrosilylation products ions has been proposed.

  DOI：

  10.1134/s1070363214010095

文献信息

• Spectral study of interaction between allyl ethers and hydrosiloxanes
  作者：M. A. Il’ina、D. A. de Vekki、N. K. Skvortsov

  DOI：10.1134/s1070363214010095

  日期：2014.1

  Interaction of allyl ethers with hydrosiloxanes in the presence of metal complexes has been investigated by spectral methods (H-1 NMR, IR, and GC-MS) as well as by gas-liquid chromatography. It has been shown that the anti-Markovnikov addition predominantly occurs in the studied cases; disproportionation of siloxanes and migration of double bond in the ethers have been identified as side reactions. The tendency to enter the side reactions has decreased in the following series: (HMeSiO)(4) > HMe2Si(OSiMe2)(2)H a parts per thousand HMe2SiOSiMe3 > (HMe2Si)(2)O > (Me3SiOSiMeH)(2)O. The general scheme of disproportionation of siloxanes HMe2Si(OSiMe2) (n) H (n a parts per thousand yen 1) has been proposed. According to mass spectrometry data, the silicon-containing fragment majorly contributes to the fragmentation of hydrosilylation products. Fragmentation of the gamma,gamma-adducts is similar to that of gamma-adducts. The predominant direction of fragmentation in the products of beta,gamma-addition of HMe2Si(OSiMe2)nH (n = 1-3) to allyl ethers is determined by fragmentation of the gamma-component of the molecule. The scheme of fragmentation of the hydrosilylation products ions has been proposed.