[(2,6-(CHMe2)2C6H3NC(tBu)CHC(tBu))Zr=NC6H3-2,6-(CHMe2)2(μ2-OTf)]2 | 827342-31-4

• 英文名称: [(2,6-(CHMe2)2C6H3NC(tBu)CHC(tBu))Zr=NC6H3-2,6-(CHMe2)2(μ2-OTf)]2
• CAS: 827342-31-4
• 化学式: C₇₂H₁₀₆F₆N₄O₆S₂Zr₂
• 分子量: 1484.23
• InChiKey: BQXATDJLFAAQCX-FIUKQZDCSA-L

反应信息

• 作为产物：
  描述：

  (2,6-(CHMe2)2C6H3NC(tBu)CHC(tBu)NC6H3(CHMe2)2-2,6)Zr(OTf)2(η2-OTf)*CH2Cl2 在 LiCH₂CMe₃ 作用下， 以 甲苯 为溶剂， 以76%的产率得到[(2,6-(CHMe2)2C6H3NC(tBu)CHC(tBu))Zr=NC6H3-2,6-(CHMe2)2(μ2-OTf)]2
  参考文献：
  名称：

  Terminal Zirconium Imides Prepared by Reductive C−N Bond Cleavage

  摘要：

  Toluene reflux of ZrCl4 with Li(Nacnac) (Nacnac(-) = [Ar]NC(tBu)CHC(tBu)N[Ar], Ar = 2,6-[CH(CH3)(2)](2)C6H3) provides the complex (Nacnac)ZrCl3 in 75% yield. Cl- substitution for OTf- is readily achieved with 3 equiv of AgOTf to yield 77% of the complex (Nacnac)Zr(OTf)(2)(eta(2)-OTf). The coordination mode of the three triflato groups was determined by a combination of single-crystal X-ray analysis and F-19 COSY experiments. Addition of 2 equiv of LiCH2XMe3 (X = C, Si) to (Nacnac)ZrCl4 in Et2O affords the bis(alkyl) systems (Nacnac)Zr(CH2XMe3)(2)Cl in good yield (X = C, 86%; X = Si, 91%). In contrast, reaction of (Nacnac)Zr(OTf)(2)(eta(2)-OTf) with 2 equiv of LiCH2CMe3 leads instead to formation of the terminal zirconium-imido complex [(NactBu)Zr=NAr(mu(2)-OTf)](2) (NactBu(-) = [2,6-(CHMe2)(2)C6H3]NC(tBu)CHC(tBu)). Likewise, reduction of (Nacnac)ZrCl3 with 2 equiv of KC8 in THF also affords a terminal zirconium-imido species, (NactBu)Zr=NAr(Cl)(THF). The zirconium-imido compounds described herein result from reductive cleavage of the C-N bond of the imine functionality contained in the Nacnac(-) ligand. The complexes (Nacnac)ZrCl3, (Nacnac)Zr(OTf)(2)(eta(2)-OTf), (Nacnac)Zr(CH2XMe3)(2)Cl, [(NactBu)Zr=NAr(mu(2)-OTf)](2), and (NactBu)Zr=NAr(Cl)(THF) have been fully characterized, and a single-crystal X-ray diffraction analysis is reported for each.

  DOI：

  10.1021/om049332t