Nb(N-2,6-Me₂C₆H₃)Cl₃(dme) | 1180675-90-4

• 英文名称: Nb(N-2,6-Me₂C₆H₃)Cl₃(dme)
• 英文别名: Nb(N(2,6-Me2C6H3))(chloride)3(dimethoxyethane)；Nb(N(2,6-Me2C6H3))Cl3(dme)；(DME)NbCl3(N-2,6-Me2C6H3)
• CAS: 1180675-90-4
• 化学式: C₄H₁₀O₂*C₈H₉Cl₃NNb
• 分子量: 408.554
• InChiKey: RQGBVKYOYXFLLJ-UHFFFAOYSA-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：

  Nb(N-2,6-Me₂C₆H₃)Cl₃(dme) 以 正己烷 为溶剂， 生成 Nb(N-2,6-Me₂C₆H₃)(CH₂SiMe₃)₂[OC(CF₃)₃]
  参考文献：
  名称：

  表现出高催化活性的（亚氨基）铌（V）-亚烷基配合物对环烯烃和内部炔烃的复分解聚合

  摘要：

  The (imido)niobium(V)-alkylidene complexes Nb(CHSiMe3)(NR)[OC(CF3)(3)](PMe3)(2) (R = 2,6-Me2C6H3, 2,6-'Pr2C6H3, 1-adamantyl), which could be isolated from the dialkyl analogues by a-hydrogen elimination in the presence of PMe3, exhibited remarkable catalytic activities for ring-opening metathesis polymerization (ROMP) of norbornene, and the polymerizations proceeded in a living manner. Metathesis polymerizations of (unstrained) disubstituted acetylenes also took place, affording polymers with uniform (narrow) molecular weight distributions.

  DOI：

  10.1021/acs.organomet.6b00560
• 作为产物：
  描述：

  乙二醇二甲醚 、 五氯化铌 、 2,6-二甲基苯胺 在 吡啶 、 zinc(II) chloride 作用下， 以 二氯甲烷 为溶剂， 反应 18.0h， 以75%的产率得到Nb(N-2,6-Me₂C₆H₃)Cl₃(dme)
  参考文献：
  名称：

  表现出高催化活性的（亚氨基）铌（V）-亚烷基配合物对环烯烃和内部炔烃的复分解聚合

  摘要：

  The (imido)niobium(V)-alkylidene complexes Nb(CHSiMe3)(NR)[OC(CF3)(3)](PMe3)(2) (R = 2,6-Me2C6H3, 2,6-'Pr2C6H3, 1-adamantyl), which could be isolated from the dialkyl analogues by a-hydrogen elimination in the presence of PMe3, exhibited remarkable catalytic activities for ring-opening metathesis polymerization (ROMP) of norbornene, and the polymerizations proceeded in a living manner. Metathesis polymerizations of (unstrained) disubstituted acetylenes also took place, affording polymers with uniform (narrow) molecular weight distributions.

  DOI：

  10.1021/acs.organomet.6b00560

文献信息

• Mono-anionic acetophenone imine ligands: synthesis, ortho-lithiation and first examples of group (v) metal complexes
  作者：Abdollah Neshat、Cheryl L. Seambos、John F. Beck、Joseph A. R. Schmidt

  DOI：10.1039/b903836a

  日期：——

  A series of niobium and tantalum imido complexes with mono-anionic ortho-metallated acetophenone imine ligands have been prepared and characterized using NMR spectroscopy, mass spectrometry and elemental analysis. These low symmetry complexes are produced with only one or two structural isomers in all cases and display interesting correlations between the steric bulk of the ligands employed and the isomers formed. Crystal structures of several new niobium and tantalum complexes are presented as confirmation of the connectivity in these structural isomers.

  我们利用核磁共振光谱法、质谱法和元素分析法制备了一系列具有单阴离子正交金属化苯乙酮亚胺配体的铌和钽亚胺配合物，并对其进行了表征。这些低对称性配合物在所有情况下都只有一种或两种结构异构体，并显示出配体的立体结构与所形成的异构体之间有趣的相关性。本文还展示了几种新的铌和钽配合物的晶体结构，以证实这些结构异构体之间的关联性。
• Derivatization of Niobium Complexes Bearing Imido and Acetophenone Imine Ligands
  作者：Abdollah Neshat、Joseph A. R. Schmidt

  DOI：10.1021/om100657r

  日期：2010.12.13

  derivatization reaction products of the niobium imido complex L2NbCl(NAr) (L = ortho-metalated acetophenone imine, Ar = 2,6-iPr2C6H3) with carbon and oxygen donor ligands such as Me, Me3SiCH2, PhCC, Me3SiCC, CF3SO3, and MeO are described. These more reactive σ-donor ligands were readily installed in place of the chloride ligand through salt metathesis reactions. The (trimethylsilyl)methyl complex showed

  铌亚氨基配合物L 2 NbCl（NAr）（L =邻金属苯乙酮亚胺，Ar = 2,6- i Pr 2 C 6 H 3）与碳和氧供体配体的衍生反应产物的成功分离和表征作为我，我3 SiCH 2，PhCC，我3 SiCC，CF 3 SO 3和MeO进行了描述。通过盐复分解反应，可以轻松地安装这些更具反应性的σ供体配体来代替氯化物配体。（三甲基甲硅烷基）甲基络合物在亚甲基和铌中心之间显示出显着的α-声波相互作用。利用锂化酰胺（LiNMe 2，LiNEt 2，LiN i Pr 2和LiNC 5 H 10）衍生化氯化物络合物的相似策略导致了由于β-氢消除过程而产生的氢化铌物质。所有所得的C 1-对称络合物主要形成为单一异构体，并结合使用以下化合物进行了全面表征1 H和13 C NMR光谱，元素分析和X射线晶体学（如果可能）。