N-(3-trimethylsilylsalicylidene)aniline | 444095-30-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: N-(3-trimethylsilylsalicylidene)aniline
• 英文别名: 2-[(Phenylimino)methyl]-6-(trimethylsilyl)phenol；2-(phenyliminomethyl)-6-trimethylsilylphenol
• CAS: 444095-30-1
• 化学式: C₁₆H₁₉NOSi
• 分子量: 269.418
• InChiKey: OQPWXUPXSQBQSL-UHFFFAOYSA-N

物化性质

• 沸点：
  357.7±37.0 °C(Predicted)
• 密度：
  0.99±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.69
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  32.6
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  N-(3-trimethylsilylsalicylidene)aniline 、 四氯化钛 在 正丁基锂 作用下， 以 乙醚 、 正己烷 、 正庚烷 为溶剂， 以54%的产率得到bis[N-(3-trimethylsilylsalicylidene)anilinato]titanium(IV)dichloride
  参考文献：
  名称：

  Ethylene and propylene polymerization behavior of a series of bis(phenoxy–imine)titanium complexes

  摘要：

  This contribution reports ethylene and propylene polymerization behavior of a series of Ti complexes bearing a pair of phenoxy-imine chelate ligands. The bis(phenoxy-imine)Ti complexes in conjunction with methylalumoxane (MAO) can be active catalysts for the polymerization of ethylene. Unexpectedly, this C-2 symmetric catalyst produces syndiotactic polypropylene. C-13 NMR spectroscopy has revealed that the syndiotacticity arises from a chain-end control mechanism. Substitutions on the phenoxy-imine ligands have substantial effects on both ethylene and propylene polymerization behavior of the complexes. In particular, the steric bulk of the substituent ortho to the phenoxy-oxygen is fundamental to obtaining high activity and high molecular weight for ethylene polymerization and high syndioselectivity for the chain-end controlled propylene polymerization. The highest ethylene polymerization activity, 3240 kg/mol-cat h, exhibited by a complex having a t-butyl group ortho to the phenoxy-oxygen, represents one of the highest reported to date for Ti-based non-metallocene catalysts. Additionally, the polypropylene produced exhibits a T-m, 140degreesC, and syndioselectivity, rrrr 83.7% (achieved by a complex bearing a trimethylsilyl group ortho to the phenoxy-oxygen) that are among the highest for polypropylenes produced via a chain-end control mechanism. Hence, the bis(phenoxy-imine)Ti complexes are rare examples of non-metallocene catalysts that are useful for the polymerization of not only ethylene but also propylene. (C) 2003 Elsevier Science B.V. All rights reserved.

  DOI：

  10.1016/s1381-1169(03)00096-7