| 157204-89-2

• CAS: 157204-89-2
• 化学式: C₄₂H₅₂N₂O₄Ru₂
• 分子量: 851.026
• InChiKey: LHIWPBVDMOXJIC-OCXSIEGFSA-N

反应信息

• 作为产物：
  描述：

  十二羰基三钌 、 (S)-1-(1-dimethylaminoethyl)-2-(2,3,4,5-tetramethylcyclopenta-1,3-dienyl)benzene 在 air 作用下， 以 正庚烷 为溶剂， 以4%的产率得到
  参考文献：
  名称：

  Chiral cyclopentadienyl catalysts. Part 3. Synthesis and reactions of (S)-1-(1-dimethylaminoethyl)-2-(2,3,4,5-tetramethylcyclopenta-1,3-dienyl)benzene; crystal structure of [Rh{η⁵-C₅Me₄C₆H₄CH(Me)NMe₂}Cl₂]

  摘要：

  The synthesis of (S)-1-(1-dimethylaminoethyl)-2-(2,3,4,5-tetramethylcyclopenta-1,3-dienyl)benzene (HL) and its reactions with [Ru3(CO)12] and IrCl3.3H2O have been performed. Compound HL also reacts with RhCl3.3H2O to give a mixture of [Rh{eta5-C5Me4C6H4CH(Me)NMe2}Cl2] 1 and [{Rh[eta5-C5Me4C6H4CH(Me)NMe2.HCl]Cl2}2] 2. A single-crystal X-ray diffraction study of 1 was carried out: the compound crystallises in the orthorhombic, space group P2(1)2(1)2(1) (D(2)4, no. 19) with a = 8.691 (6), b = 15.803(15), c = 13.840(10) angstrom and Z = 4; R = 0.0657. Interconversion between 1 and 2 can be effected readily using HCl or base respectively. Other aspects of the chemistry of 1 have been investigated including its conversion into [Rh{eta5-C5Me4C6H4CH(Me)NMe2}(C2H4)2] in which rotation of the co-ordinated ethene molecules has been estimated by H-1 NMR spectroscopy to have a free energy of activation (DELTAG(double dagger)) = 67.2 kJ mol-1. In contrast to 1, the methylated derivative [Rh{eta5-C5Me4C6H4CH(Me)NMe3+BF4-}Cl2] functions as a hydrogenation catalyst but with prochiral alkenes the optical yields were low (less-than-or-equal-to 8% enantiomeric excess).

  DOI：

  10.1039/dt9940001445