| 1228093-94-4

• CAS: 1228093-94-4
• 化学式: C₂₈H₃₈Cl₃CrN₂OP₂
• 分子量: 638.925
• InChiKey: JYKGUTZSCURGMB-BQPUMDETSA-K

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为反应物：
  描述：

  、 三乙基铝 以 甲苯 为溶剂， 以61%的产率得到[(μ(Cr,Cr)-Cl)(μ(Cr,Al)-Cl)Cr(κ(2)P,P-P(Ph2)N(i-Pr)P(Ph)N(i-Pr)AlEt2)]2
  参考文献：
  名称：

  Heterobimetallic Al−Cl−Cr Intermediates with Relevance to the Selective Catalytic Ethene Trimerization Systems Consisting of CrCl₃(THF)₃, the Aminophosphorus Ligands Ph₂PN(R)P(Ph)N(R)H, and Triethylaluminum

  摘要：

  We report in this paper the isolation and characterization of novel heterobimetallic Cr/Al complexes based on the PNPN ligand along with an assessment about their relevance as intermediates in the ethane selective trimerization process consisting of CrCl3(THF)(3), the aminophosphorus ligands Ph2PN(R)P(Ph)N(R')H (1a, R = R' = i-Pr; 1b, R = R' = c-Hex; 1c, R = n-Hex; R' = i-Pr). Different reactions between these ligands or their aluminated products with different chromium salts and Et3Al gave the binuclear P,P'-coordinated chromium(II)-chloro-aluminum-amidophosphane complexes [(mu(Cr,Cr)-Cl)-(mu(Cr,Al)-Cl)Cr{kappa P-2,P-P(Ph-2)N(R)P(Ph)N(R)Al(Et-2)}](2), (2a, R = R' = i-Pr; 2b, R = R' = c-Hex; 2c, R = n-Hex; R' = i-Pr). By using Ph2PN(i-Pr)P(Ph)N(i-Pr)H (1a) the corresponding complex [(mu(Cr,Cr)-Cl)(mu(Cr,Al)-Cl)Cr{kappa P-2,P-P(Ph-2)N(i-Pr)P(Ph)N(i-Pr)Al(Me-2)}](2) (2d) was also obtained. Complexes 2a, c,d were characterized by X-ray analysis. The formation and role of these compounds are discussed and identified as an important step during the activation of the catalytic system. Studies reveal that the activity of the described trimerization reaction can be enhanced by an optimized Cr/Al/Cl ratio without affecting the high selectivity to 1-hexene, thus clarifying the importance of chlorine as part of the catalytic species.

  DOI：

  10.1021/om200100g
• 作为产物：
  描述：

  trichlorotris(tetrahydrofuran)chromium(III) 、 (diphenylphosphanyl)(phenyl(isopropylamino)phosphanyl)(isopropyl)amine 生成
  参考文献：
  名称：

  用于乙烯三聚反应的选择性铬催化剂体系及其配位化学

  摘要：

  在本文中，提出了一种新型 [PNPNH] 配体，该配体适用于一种新型均相高选择性乙烯三聚体系，用于形成 1-己烯，该体系由铬源 CrCl 3 (thf) 3 、配体 Ph 2 PN(iPr)P(Ph)N(iPr)H (1) 和 Et 3 Al 作为甲苯中的活化剂。这种新系统的优异特性，例如对 C 6 的选择性非常高，C 6 馏分的纯度最高（> 99 % 1-己烯），长时间保持恒定水平的活性，使用少量 Et 3 Al作为一种廉价的活化剂，而且 PE 的产量非常低，使其成为工业应用的热门候选者。它的有机金属背景表明了活性催化剂种类的性质。

  DOI：

  10.1002/ejic.201000044