2,2,4,6,6,8,8-heptamethyl-non-4-ene | 39761-70-1

• 分子结构分类: 有机化合物 - 碳氢化合物 - 不饱和烃
• 英文名称: 2,2,4,6,6,8,8-heptamethyl-non-4-ene
• 英文别名: 2,2,4,6,6,8,8-Heptamethyl-non-4-en；Δ⁴-tetraisobutylene；2,2,4,6,6,8,8-Heptamethylnon-4-ene
• CAS: 39761-70-1
• 化学式: C₁₆H₃₂
• 分子量: 224.43
• InChiKey: JBQQZHSBRMBWRB-UHFFFAOYSA-N

物化性质

• 沸点：
  262.8±7.0 °C(Predicted)
• 密度：
  0.784±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  7
• 重原子数：
  16
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.88
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为产物：
  描述：

  异丁烯 在 molecular sieves supported chloroaluminate ionic liquid 作用下， 以 neat (no solvent, gas phase) 为溶剂， 25.0 ℃ 、101.33 kPa 条件下， 生成 5-氟乳清酸一水合物 、 2,4,4-三甲基-2-戊烯 、 2,2,4,6,6,8,8-heptamethyl-non-4-ene
  参考文献：
  名称：

  Highly efficient trimerization of isobutene over silica supported chloroaluminate ionic liquid using C4 feed

  摘要：

  A series of silica, glass and molecular sieves supported chloroaluminate ionic liquids (ILs) were prepared and their catalytic performance on the trimerization of isobutene based on C4 mixture was investigated. Interestingly, it was found that the carrier played a key role in the reaction route. Among these supported catalysts, silica supported chloroaluminate ionic liquid was highly efficient for the trimerization of isobutene. X-ray photoelectron spectroscopy (XPS) and differential scanning calorimetry (DSC) characterizations suggested that the synergy between Al2Cl7- anion and silica induced the catalytic activity for isobutene oligomerization due to the strong interaction between ILs and silanol group. The reaction conditions including loading amount, temperature, reactant concentration, and space velocity for the isobutene oligomerization were optimized. Ultimately, complete conversion of isobutene and 91.4% selectivity of trimers were obtained over the IL/silica (30 wt.%) catalyst at mild conditions. Moreover, catalyst stability and deactivation were preliminarily studied. (c) 2012 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.cattod.2012.06.023

文献信息

• Highly efficient trimerization of isobutene over silica supported chloroaluminate ionic liquid using C4 feed
  作者：Shimin Liu、Jianpeng Shang、Shiguo Zhang、Benqun Yang、Youquan Deng

  DOI：10.1016/j.cattod.2012.06.023

  日期：2013.2

  A series of silica, glass and molecular sieves supported chloroaluminate ionic liquids (ILs) were prepared and their catalytic performance on the trimerization of isobutene based on C4 mixture was investigated. Interestingly, it was found that the carrier played a key role in the reaction route. Among these supported catalysts, silica supported chloroaluminate ionic liquid was highly efficient for the trimerization of isobutene. X-ray photoelectron spectroscopy (XPS) and differential scanning calorimetry (DSC) characterizations suggested that the synergy between Al2Cl7- anion and silica induced the catalytic activity for isobutene oligomerization due to the strong interaction between ILs and silanol group. The reaction conditions including loading amount, temperature, reactant concentration, and space velocity for the isobutene oligomerization were optimized. Ultimately, complete conversion of isobutene and 91.4% selectivity of trimers were obtained over the IL/silica (30 wt.%) catalyst at mild conditions. Moreover, catalyst stability and deactivation were preliminarily studied. (c) 2012 Elsevier B.V. All rights reserved.