2,6-Bis[1-(2,3-dimethylphenylimino)ethyl]pyridine

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,6-Bis[1-(2,3-dimethylphenylimino)ethyl]pyridine
• 化学式: C₂₅H₂₇N₃
• 分子量: 369.509
• InChiKey: BNOMVUTUWQORRM-CRYYDKFDSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.6
• 重原子数：
  28.0
• 可旋转键数：
  4.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.24
• 拓扑面积：
  37.61
• 氢给体数：
  0.0
• 氢受体数：
  3.0

反应信息

• 作为产物：
  描述：

  2,6-二乙酰基吡啶 、 2,3-二甲基苯胺 在 溶剂黄146 作用下， 以 乙醇 为溶剂， 以80%的产率得到2,6-Bis[1-(2,3-dimethylphenylimino)ethyl]pyridine
  参考文献：
  名称：

  Oligomerisation of Ethylene by Bis(imino)pyridyliron and -cobalt Complexes

  摘要：

  A series of bis(imino)pyridyliron and -cobalt complexes [[2,6-(CR=NAr)2C5H3N]MX2] (R=H, Me; M=Fe, Co; X=Cl, Br) 8-16 containing imino-aryl rings (Ar) with at least one small ortho substituent, as well as Ar=biphenyl and Ar=naphthyl, has been synthesised. Crystallographic analyses of complexes 9 (Ar = 2,3-dimethylphenyl), 13 and 14 (Ar= biphenyl; X= Cl or Br, respectively) reveal a distorted trigonal-bipyramidal geometry in the solid state. These complexes, in combination with methyl aluminoxane (MAO), are active catalysts for the oligomerisation of ethylene, yielding >99% linear alpha-olefin mixtures that follow a Schulz-Flory distribution. Iron ketimine (R = Me) precatalysts give the highest activities and a greater alpha-value than their aldimine (R = H) analogues. Cobalt precatalysts follow a similar trend, though their activities are almost two orders of magnitude lower than those of the corresponding iron catalysts. Ethylene pressure studies on cobalt precatalyst 15 reveal a first-order dependence on ethylene for both the rate of propagation and the rate of chain transfer, and a pressure independence of the alpha value.

  DOI：

  10.1002/1521-3765(20000616)6:12<2221::aid-chem2221>3.0.co;2-u

文献信息

• OLEFIN OLIGOMERIZATION METHODS
  申请人：Chevron Phillips Chemical Company LP

  公开号：EP2797862B1

  公开（公告）日：2021-04-07
• Olefin Oligomerization Methods
  申请人：Small Brooke L.

  公开号：US20130172651A1

  公开（公告）日：2013-07-04

  Processes for oligomerizing olefins utilizing a catalyst system including a) a transition metal complex that is transition metal compound complexed to a pyridine bisimine ligand and b) a metal alkyl and controlling the olefin oligomer product distribution K value by adjusting i) a transition metal of the transition metal complex concentration in the reactor, ii) a metal of the metal alkyl concentration in the reactor, iii) a metal of the metal alkyl to transition metal of the transition metal complex molar ratio in the reactor, and iv) any combination thereof.
• US9586872B2
  申请人：——

  公开号：US9586872B2

  公开（公告）日：2017-03-07
• [EN] OLEFIN OLIGOMERIZATION METHODS<br/>[FR] PROCÉDÉS D'OLIGOMÉRISATION D'OLÉFINES
  申请人：CHEVRON PHILLIPS CHEMICAL CO

  公开号：WO2013101387A1

  公开（公告）日：2013-07-04

  Processes for oligomerizing olefins utilizing a catalyst system including a) a transition metal complex that is transition metal compound complexed to a pyridine bisimine ligand and b) a metal alkyl and controlling the olefin oligomer product distribution K value by adjusting i) a transition metal of the transition metal complex concentration in the reactor, ii) a metal of the metal alkyl concentration in the reactor, iii) a metal of the metal alkyl to transition metal of the transition metal complex molar ratio in the reactor, and iv) any combination thereof.
• Oligomerisation of Ethylene by Bis(imino)pyridyliron and -cobalt Complexes
  作者：George J.P. Britovsek、Sergio Mastroianni、Gregory A. Solan、Simon P. D. Baugh、Carl Redshaw、Vernon C. Gibson、Andrew J. P. White、David J. Williams、Mark R. J. Elsegood

  DOI：10.1002/1521-3765(20000616)6:12<2221::aid-chem2221>3.0.co;2-u

  日期：2000.6.16

  A series of bis(imino)pyridyliron and -cobalt complexes [[2,6-(CR=NAr)2C5H3N]MX2] (R=H, Me; M=Fe, Co; X=Cl, Br) 8-16 containing imino-aryl rings (Ar) with at least one small ortho substituent, as well as Ar=biphenyl and Ar=naphthyl, has been synthesised. Crystallographic analyses of complexes 9 (Ar = 2,3-dimethylphenyl), 13 and 14 (Ar= biphenyl; X= Cl or Br, respectively) reveal a distorted trigonal-bipyramidal geometry in the solid state. These complexes, in combination with methyl aluminoxane (MAO), are active catalysts for the oligomerisation of ethylene, yielding >99% linear alpha-olefin mixtures that follow a Schulz-Flory distribution. Iron ketimine (R = Me) precatalysts give the highest activities and a greater alpha-value than their aldimine (R = H) analogues. Cobalt precatalysts follow a similar trend, though their activities are almost two orders of magnitude lower than those of the corresponding iron catalysts. Ethylene pressure studies on cobalt precatalyst 15 reveal a first-order dependence on ethylene for both the rate of propagation and the rate of chain transfer, and a pressure independence of the alpha value.