[(S)-RhCl(η4-cyclooctadiene)Me3SiCH2P(Ph)(9-phenanthryl)] | 928207-54-9

• 英文名称: [(S)-RhCl(η4-cyclooctadiene)Me3SiCH2P(Ph)(9-phenanthryl)]
• CAS: 928207-54-9
• 化学式: C₃₂H₃₇ClPRhSi
• 分子量: 619.064
• InChiKey: QVQWAQJYXCNLEU-QIVWFQNESA-M

反应信息

• 作为产物：
  描述：

  chloro(1,5-cyclooctadiene)rhodium(I) dimer 、 [(S)-Me3SiCH2P(Ph)(9-phenanthryl)] 以 二氯甲烷 为溶剂， 以93%的产率得到[(S)-RhCl(η4-cyclooctadiene)Me3SiCH2P(Ph)(9-phenanthryl)]
  参考文献：
  名称：

  Rhodium or ruthenium units peripherally coordinated to carbosilane dendrimers functionalized with P-stereogenic monophosphines

  摘要：

  Carbosilane dendrimers containing P-stereogenic monophosphines as terminal groups, Dend-{CH2PPhR)(n)(R = 2-biphenylyl or 9-phenanthryt), were reacted with [RhCl(COD)](2) or [RUCl2(p-cymene)](2) to afford the corresponding chiral metalladendrimers Dend-{CH2PPhR(RhCl(COD))}(n) or Dend-{CH2PPhR(RuCl2(p-cymene))}(n), respectively. Attempts to obtain the first generation Ru-clendrimer for R = 2-biphenylyl proved unsuccessful, probably due to the steric hindrance of R. Complete characterization of these species was achieved by multinuclear NMR spectra, including 2D experiments, mass spectrometry, and optical rotation determinations. The catalytic properties of the rhodium dendrimers were tested in the hydrogenation of dimethylitaconate and those of the ruthenium derivatives in the asymmetric hydrogen transfer of acetophenone. The following model chiral compounds, (CH3)(3)Si{CH2PPhR(RhCl(COD))} and (CH3)(3)Si{CH2PPhR(RuCl2(p-cymene))}, were prepared in order to detect potential dendritic effects. All compounds were active in the catalytic conditions tested, but low or null e.e. were found. (c) 2006 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2006.10.035