2-甲基-1-(三甲基硅烷基)-1H-茚 | 42466-59-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 茚和异茚
• 中文名称: 2-甲基-1-(三甲基硅烷基)-1H-茚
• 英文名称: 1-Trimethylsilyl-2-methylinden
• 英文别名: 3-Trimethylsilyl-2-methylinden；1-trimethylsilyl-2-methylindene；Trimethyl(2-methyl-1H-inden-1-yl)silane；trimethyl-(2-methyl-1H-inden-1-yl)silane
• CAS: 42466-59-1
• 化学式: C₁₃H₁₈Si
• 分子量: 202.371
• InChiKey: YGJQQDPQBLYNAU-UHFFFAOYSA-N

物化性质

• 沸点：
  270.5±19.0 °C(Predicted)
• 密度：
  0.93±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.06
• 重原子数：
  14
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

安全信息

• 海关编码：
  2931900090

反应信息

• 作为反应物：
  描述：

  2-甲基-1-(三甲基硅烷基)-1H-茚 、 四氯化钛 以 二氯甲烷 为溶剂， 以98%的产率得到2-methylindenyltrichlorotitanium
  参考文献：
  名称：

  Alkyl-substituted indenyl titanium precursors for syndiospecific ziegler-natta polymerization of styrene

  摘要：

  A variety of 1- and 3-substituted alkylindenes (R = H, Me, Et, tert-butyl, Me(3)Si) as well as 2-methylindene and 3-(methylthio)indene have been prepared in good yields. The substituted indenes were converted into trimethylsilyl derivatives via reactions of intermediate organolithium complexes with chlorotrimethylsilane. The corresponding titanium complexes, (R-Ind)TiCl3, were synthesized in excellent yield from reactions of the trimethylsilyl derivatives with TiCl4. The titanium complexes were evaluated as styrene polymerization catalysts in toluene solution when activated by methylaluminoxane. Activities increased in the order: Cp < H(4)Ind < Ind < 1-(Me)Ind < 2-(Me)Ind. A steep drop in activity was observed when R = Et, tert-butyl, and Me(3)Si, corresponding to an increase in the steric bulk of the substituent in the catalyst precursor. 1-(MeS)IndTiCl(3) was found to be ineffective as a styrene polymerization catalyst. Syndiospecificities of the titanium complexes were generally very good (65-98%).

  DOI：

  10.1016/s0022-328x(96)06153-0

文献信息

• Alkyl-substituted indenyl titanium precursors for syndiospecific ziegler-natta polymerization of styrene
  作者：Thomas E. Ready、James C.W. Chien、Marvin D. Rausch

  DOI：10.1016/s0022-328x(96)06153-0

  日期：1996.7

  A variety of 1- and 3-substituted alkylindenes (R = H, Me, Et, tert-butyl, Me(3)Si) as well as 2-methylindene and 3-(methylthio)indene have been prepared in good yields. The substituted indenes were converted into trimethylsilyl derivatives via reactions of intermediate organolithium complexes with chlorotrimethylsilane. The corresponding titanium complexes, (R-Ind)TiCl3, were synthesized in excellent yield from reactions of the trimethylsilyl derivatives with TiCl4. The titanium complexes were evaluated as styrene polymerization catalysts in toluene solution when activated by methylaluminoxane. Activities increased in the order: Cp < H(4)Ind < Ind < 1-(Me)Ind < 2-(Me)Ind. A steep drop in activity was observed when R = Et, tert-butyl, and Me(3)Si, corresponding to an increase in the steric bulk of the substituent in the catalyst precursor. 1-(MeS)IndTiCl(3) was found to be ineffective as a styrene polymerization catalyst. Syndiospecificities of the titanium complexes were generally very good (65-98%).