| 1373953-31-1

• CAS: 1373953-31-1
• 化学式: C₄₀H₅₆O₃P₂Ru
• 分子量: 747.9
• InChiKey: WWONYXIHIYFTOO-UHFFFAOYSA-N

反应信息

• 作为产物：
  描述：

  [bis(2-methylallyl)cycloocta-1,5-diene]ruthenium(II) 、 [2-(4,8-Ditert-butyl-1,2,10,11-tetramethylbenzo[d][1,3,2]benzodioxaphosphepin-6-yl)oxyphenyl]-dimethylphosphane 以 正己烷 为溶剂， 以50%的产率得到
  参考文献：
  名称：

  Synthesis, Characterization, and Reactivity of Ruthenium Bis-Allyl Complexes with Chiral Phosphine-Phosphite Ligands

  摘要：

  A series of ruthenium bis-allyl complexes of formula Ru(eta(3)-2-MeC3H4)(2)(P-OP) (I) which incorporate chiral phosphine-phosphite ligands (P-OP) have been prepared and characterized. Compounds I exist in solution as a mixture of two diastereomers (maj and min) differing in the configuration at the metal. Both isomers are in equilibrium in solution, and their ratio varies with the nature of the P-OP ligand. Along the series, higher values of the maj/min ratio were observed with complexes bearing less sterically encumbered phosphite groups. In reactions of compounds I with protic reagents removal of one or two ally! ligands has been observed. Thus, reaction of 1h with pentachlorophenol produces the mixed allyl-phenoxide 3h, whereas reaction of la or 1h with tiglic acid produces the corresponding tiglates 4a,h, respectively. In addition, compounds I generate active catalysts for the hydrogenation of tiglic and 2-methyl-2-pentenoic acids. By appropriate optimization of the structure of the P-OP ligand, enantioselectivities up to 89% ee were obtained in these reactions. In addition, complexes I also catalyze the ROMP reaction of norbornene, although low initiation rates have been observed for this process.

  DOI：

  10.1021/om300018s