[bis[dimethyl(propan-2-yl)silyl]-[iodo(dimethyl)silyl]methyl]-dimethyl-propan-2-ylsilane | 163678-64-6

• 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
• 英文名称: [bis[dimethyl(propan-2-yl)silyl]-[iodo(dimethyl)silyl]methyl]-dimethyl-propan-2-ylsilane
• CAS: 163678-64-6
• 化学式: C₁₈H₄₅ISi₄
• 分子量: 500.802
• InChiKey: QZRRHHXYJVYWCN-UHFFFAOYSA-N

物化性质

• 沸点：
  393.7±52.0 °C(Predicted)
• 密度：
  1.024±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  8.34
• 重原子数：
  23.0
• 可旋转键数：
  7.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  1.0
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  [bis[dimethyl(propan-2-yl)silyl]-[iodo(dimethyl)silyl]methyl]-dimethyl-propan-2-ylsilane 在 silver nitrate 作用下， 以 乙腈 为溶剂， 反应 25.0h， 以66%的产率得到[dimethyl-[tris[dimethyl(propan-2-yl)silyl]methyl]silyl] nitrate
  参考文献：
  名称：

  Comparison of the reactivities of (Me3Si)3CSiMe2I and (PriMe2Si) 3CSiMe2I

  摘要：

  The compound ((PrMe2Si)-Me-i)(3)CSiMe2I, 2, reacts more readily than (Me3Si)(3)CSiMe2I, 1, with electrophiles (AgNO3 in MeCN; ICl in CH2Cl2) but less readily than 1 with the nucleophilic KSCN in MeCN, in keeping with the view that the former type of reaction involves anchimerically assisted formation of an alkyl-bridged cation in the rate-determining step and the latter direct nucleophilic attack at the functional silicon centre. Surprisingly, 2 is more reactive than 1 towards MeOH but less reactive than the latter towards H2O-dioxane, adding to the enigma of the mechanism of such solvolyses. The reactions of the labelled compound (Me3Si)(3)CSi(CD3)(2)I with MeOH or H2O-dioxane take place at the same rate as that of 1 within the experimental uncertainty, and proceed without detectable formation of the rearranged products (Me3Si)(2)C[Si(CD3)(2)Me]SiMe2OX, X = Me or H, confirming that the solvolyses do not involve cation formation. (C) 1997 Elsevier Science S.A.

  DOI：

  10.1016/s0022-328x(97)00112-5
• 作为产物：
  描述：

  在 三甲基苯基硅烷 、 碘 作用下， 以 四氯化碳 为溶剂， 反应 72.0h， 以71%的产率得到[bis[dimethyl(propan-2-yl)silyl]-[iodo(dimethyl)silyl]methyl]-dimethyl-propan-2-ylsilane
  参考文献：
  名称：

  Preparation of (iPrMe2Si)3CH and its use as a source of the bulky ligand (iPrMe2Si)3C

  摘要：

  The compound ((i)PrMe(2)Si)(3)CH has been made, and shown to be metallated slowly by MeLi in refluxing THF to give the lithium reagent ((i)PrMe(2)Si)(3)CLi. That the latter can be used to attach the bulky ligand ((i)PrMe(2)Si)(3)C to a metalloid or metal centre was demonstrated by treating it with Me(2)SiHCl to give a 77% yield of ((i)PrMe(2)Si)(3)CSiMe(2)H, which with iodine gave the iodide ((i)PrMe(2)Si)(3)CSiMe(2)I. Reactions of ((i)PrMe(2)Si)(3)CLi with Me(3)SiCl and SiCl4 likewise gave ((i)PrMe(2)Si)(3)CSiMe(3) and((i)PrMe(2)Si)(3)CSiCl3 in ca. 33% and 16% yields, respectively.

  DOI：

  10.1016/0022-328x(94)05156-6