(OCMe2CF3)2W(μ-N-2-CH2-6-MeC6H3)(μ-N-2,6-Me2C6H3)W(Et)(OCMe2(CF3))2 | 864723-01-3

• 英文名称: (OCMe2CF3)2W(μ-N-2-CH2-6-MeC6H3)(μ-N-2,6-Me2C6H3)W(Et)(OCMe2(CF3))2
• 英文别名: (OCMe2CF3)2(Et)W(μ-N-2,6-Me2C6H3)(μ-N-2-CH2-6MeC6H3)W(OCMe2CF3)2
• CAS: 864723-01-3
• 化学式: C₃₄H₄₆F₁₂N₂O₄W₂
• 分子量: 1142.43
• InChiKey: NALSZDPJOAKSIP-UHFFFAOYSA-N

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

• 作为产物：
  描述：

  (W(N-2,6-Me2C6H3)[OCMe2(CF3)]2)2(C2H4) 以 甲苯 为溶剂， 生成 (OCMe2CF3)2W(μ-N-2-CH2-6-MeC6H3)(μ-N-2,6-Me2C6H3)W(Et)(OCMe2(CF3))2
  参考文献：
  名称：

  Olefin Metathesis Reactions Initiated by d² Molybdenum or Tungsten Complexes

  摘要：

  Dimeric or monomeric imido complexes of Mo(IV) or W(IV) will slowly catalyze some olefin metathesis reactions, although it is estimated that < 2% of the d(2) species is "activated" by the olefin. An ethylene adduct of {W(NAr')[OCMe2(CF3)](2)}(2) can be isolated, which upon heating is transformed into a new dimeric species that contains an ethyl group and a CH activated ortho methyl group in the NAr' ligand.

  DOI：

  10.1021/om050583r

文献信息

• Some Reactions Involving [W(N-2,6-Me₂C₆H₃)(OCMe₂CF₃)₂]₂, a Symmetric d²/d² Dimer that Contains No Bridging Ligands
  作者：Lourdes Pia H. Lopez、Richard R. Schrock、Peter Müller

  DOI：10.1021/om800182g

  日期：2008.8.1

  (me2CF3CO)2(Ar'N)W=W(NAr')(OCMe2CF3)2 (Ar' = 2,6-Me2C6H3) reacts immediately at room temperature with I equiv Of CC14 to give the sparingly soluble [W(OCMe2CF3)2C1]2(u-NAr')2, [W(NAr')(OCMe2CF3)212 forms IA adducts with simple donor ligands such as PMe3, PPhMe2, and pyridine, in which the base is likely to be coordinated to a single W center. Addition of ethylene to [W(NAr')(OCMe2CF3)212 yields I_W(NAr')(OCMe2CF3)212(U-C2H4), in which ethylene is bound essentially to one W, although it also could be argued that a 1,2-dimetallacyclobutane ring is present. Heating a toluene solution of [W(NAr')(OCMe2CF3)212(U-C2H4) produces (OCMe2CF3)2(Et)W(u-NAr')(,a-N-2-CH26-MeC6H3)W(OCMe2CF3)2, in which the proton required to form the ethyl ligand arises through CH activation in one of the methyl groups of the NAr' ligand. Treatment of [W(NAr')(OCMe2CF3)212 with 2-butyne yields [W(NAr')(OCMe2CF3)212(Y-MeCCMe). Addition of 4 equiv of CH3CN to [W(NAr')(OCMe,CF3)212 in benzene gives a mixture of two products, A and B, which have the empirical formula W(NAr')(OCMe2CF3)2(CH3CN), according to elemental analyses. Compound B was found to contain the [y-NC(Me)=C(Me)N]4- ligand in an unsymmetric dimer in which one nitrogen of the Lu-NC(Me)=C(Me)N]4- ligand is bridging while the other is bound in a terminal fashion to one metal. Compound A is proposed to be a C,-symmetric structural isomer of B in which the [N(Me)C=C(Me)N]4ligand is symmetrically bridging the two metal centers. X-ray studies are reported for [W(OCMe,,CF3)2CI12(UNAr')2, [W(NAr')(0cme2CF3)212(y-MeCCMe), and B.