二叔丁氧基二甲氧基硅烷 | 6852-04-6

• 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
• 中文名称: 二叔丁氧基二甲氧基硅烷
• 英文名称: Di-t-Butoxydimethoxysilane, tech-95
• 英文别名: ditert-butyl dimethyl silicate
• CAS: 6852-04-6
• 化学式: C₁₀H₂₄O₄Si
• 分子量: 236.384
• InChiKey: YGHXHELPFKLYNJ-UHFFFAOYSA-N

物化性质

• 沸点：
  80-83°C / 10
• 密度：
  0.927±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.34
• 重原子数：
  15
• 可旋转键数：
  6
• 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

• 作为反应物：
  描述：

  二叔丁氧基二甲氧基硅烷 、 trimethoxy(t-butoxy)silane 、 Tetrakis[dimethoxy(methyl)silyl] silicate 在 吡啶 作用下， 以 乙腈 、 甲醇 为溶剂， 反应 3.0h， 生成 Bis[dimethoxy(methyl)silyl] dimethyl silicate 、 [Dimethoxy(methyl)silyl] trimethyl silicate
  参考文献：
  名称：

  Direct alkoxysilylation of alkoxysilanes for the synthesis of explicit alkoxysiloxane oligomers

  摘要：

  Direct alkoxysilylation, which is a powerful tool to provide explicit alkoxysiloxanes, is developed and its versatility is investigated. Siloxane pentamers Si[OSiR1(OMe)(2)](4) having various functional groups (R-1 = methyl, vinyl, phenyl, chloropropyl and n-butyl groups) were successfully obtained by direct alkoxysilylation of Si(OR)(4) (R= t-Bu, CHPh2). Thus, the versatility of the reaction is confirmed on organic functional groups R-1. Functional group tolerance of the reaction is discussed on the basis of electro-negativity of the R-1 groups. Alkoxysilylation of Si(Ot-Bu)(2)(OMe)(2) and Si(Ot-Bu)(OMe)(3) selectively gives trimer (MeO)(2)Si[OSiMe(OMe)(2)](2) and dimer (MeO)(3)SiOSiMe(OMe)(2), respectively. Thus, the feasibility on siloxane structure is also confirmed. Various siloxane compounds are synthesized by this newly developed reaction for the first time. (C) 2012 Published by Elsevier B.V.

  DOI：

  10.1016/j.jorganchem.2012.05.033
• 作为产物：
  描述：

  甲醇 、 二-叔-丁氧基二氯硅烷 、 t-butoxytrichlorosilane 以 正己烷 为溶剂， 反应 1.5h， 生成 二叔丁氧基二甲氧基硅烷 、 [Dimethoxy(methyl)silyl] trimethyl silicate
  参考文献：
  名称：

  Direct alkoxysilylation of alkoxysilanes for the synthesis of explicit alkoxysiloxane oligomers

  摘要：

  Direct alkoxysilylation, which is a powerful tool to provide explicit alkoxysiloxanes, is developed and its versatility is investigated. Siloxane pentamers Si[OSiR1(OMe)(2)](4) having various functional groups (R-1 = methyl, vinyl, phenyl, chloropropyl and n-butyl groups) were successfully obtained by direct alkoxysilylation of Si(OR)(4) (R= t-Bu, CHPh2). Thus, the versatility of the reaction is confirmed on organic functional groups R-1. Functional group tolerance of the reaction is discussed on the basis of electro-negativity of the R-1 groups. Alkoxysilylation of Si(Ot-Bu)(2)(OMe)(2) and Si(Ot-Bu)(OMe)(3) selectively gives trimer (MeO)(2)Si[OSiMe(OMe)(2)](2) and dimer (MeO)(3)SiOSiMe(OMe)(2), respectively. Thus, the feasibility on siloxane structure is also confirmed. Various siloxane compounds are synthesized by this newly developed reaction for the first time. (C) 2012 Published by Elsevier B.V.

  DOI：

  10.1016/j.jorganchem.2012.05.033