(μ-oxo)bis[(1,2-benzenediamino-N,N'-bis(3,5-di-tert-butylsalicylidene))iron(III)] | 601470-04-6

• 英文名称: (μ-oxo)bis[(1,2-benzenediamino-N,N'-bis(3,5-di-tert-butylsalicylidene))iron(III)]
• CAS: 601470-04-6
• 化学式: C₇₂H₉₂Fe₂N₄O₅
• 分子量: 1205.24
• InChiKey: BTIRJNCJCXTPND-KOZNNKBOSA-J

反应信息

• 作为产物：
  描述：

  3,5-二叔丁基水杨醛 、 邻苯二胺 以 乙醇 为溶剂， 反应 4.0h， 生成 (μ-oxo)bis[(1,2-benzenediamino-N,N'-bis(3,5-di-tert-butylsalicylidene))iron(III)]
  参考文献：
  名称：

  [(salen)Fe]2(μ-O)与HBpin的络合反应性及其催化意义

  摘要：

  我们报告了对炔环三聚过程中预催化剂活化方法的详细研究。在这些研究中，我们制备了一系列同系 Fe(III)-μ-oxo(salen) 配合物，并使用了一系列技术，包括 UV-vis、反应监测研究、单晶 X 射线衍射、NMR 光谱和 LIFDI 质谱光谱分析为循环铁催化剂的性质提供实验证据。这些数据推断配体还原的可能性，产生铁（萨兰）-硼基络合物作为关键的循环中间体。我们使用 DFT 研究来探究自旋态，并将其与实验确定的抗磁性和顺磁性物质联系起来。萨兰系统的极端构象灵活性似乎与可能的循环物种的结晶相关的挑战有关。

  DOI：

  10.1021/acscatal.3c02898

文献信息

• Catalytic Olefin Cyclopropanation Using μ-Oxo−bis[(salen)iron(III)] Complexes
  作者：Smita K. Edulji、SonBinh T. Nguyen

  DOI：10.1021/om020959q

  日期：2003.8.1

  A series of mu-oxo-bis[(salen)iron(III)] complexes was prepared from the reaction of the corresponding salen ligands with FeCl3.6H(2)O in the presence of NEt3, and characterized by elemental analysis, infrared spectroscopy, and mass spectrometry. These air-stable complexes catalyzed the cyclopropanation of olefins with ethyl diazoacetate in good yields. The catalytic activity of these mu-oxo dimers, in the cyclopropanation of styrene, was examined as a function of the diamine backbone and the substituents in the 3,3'- and 5,5'-positions of the phenyl rings on the ligands. Solvent variation, catalyst loading, and styrene concentration were investigated to determine the optimal reaction conditions. The complex [Fe(3,3',5,5'-Bu-t(4)-salen)](2)O (1d) was identified as the most efficient catalyst in the series, which successfully catalyzed the cyclopropanation not only of styrene but also of less reactive substrates such as alpha-methylstyrene, alpha-(trifluoromethyl)styrene, 1,1-diphenylethylene, methylenecyclohexane, and n-butyl vinyl ether and internal olefins such as trans- and cis-beta-methylstyrene and ethylidenecyclohexane.