[Y(η5:η1-C5Me4CH2SiMe2NCMe3)(CH(CH3)Ph)(THF)] | 380377-88-8

• 英文名称: [Y(η5:η1-C5Me4CH2SiMe2NCMe3)(CH(CH3)Ph)(THF)]
• CAS: 380377-88-8
• 化学式: C₂₈H₄₆NOSiY
• 分子量: 529.671
• InChiKey: QSSMMOFWDAAFBC-UHFFFAOYSA-N

计算性质

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反应信息

• 作为产物：
  描述：

  苯乙烯 、 [Y(η5:η1-C5Me4CH2SiMe2NCMe3)(THF)(μ-H)]2 以 甲苯 为溶剂， 以88%的产率得到[Y(η5:η1-C5Me4CH2SiMe2NCMe3)(CH(CH3)Ph)(THF)]
  参考文献：
  名称：

  Yttrium Hydrido Complexes that Contain a Less “Constrained Geometry” Ligand:  Synthesis, Structure, and Efficient Hydrosilylation Catalysis

  摘要：

  sigma -Bond metathesis of the new linked amino-cyclopentadiene (C5Me4H)CH2SiMe2NHCMe3 with Y(CH2SiMe3)(3)(THF)(2) gave the alkyl-yttrium complex [y(eta (5):eta (1)-C5Me4CH2SiMe2NCMe3)(CH2SiMe3)(THF)] (1) in 66% yield. Compound 1 was characterized by NMR spectroscopy and X-ray crystal structure analysis. By hydrogenolysis, 1 was quantitatively converted into the dimeric hydride [Y(eta (5):eta (1)-C5Me4CH2SiMe2NCMe3)(THF)(mu -H)](2) (2). X-ray crystal structure analysis revealed a Y2H2 core connected to two [Y(eta (5):eta (1)-C5Me4CH2SiMe2NCMe3)(THF)] fragments in a skewed manner, with a relatively long yttrium-yttrium distance of 3.7085(8) A. In solution, two diastereomers were observed by H-1 NMR spectroscopy at -78 degreesC. Dimer 2 was shown to efficiently catalyze the hydrosilylation of 1-decene with PhSiH3 to give the terminal silane (C10H21SiH2Ph)-C-n exclusively. Although the product of addition of the yttrium-hydride complex 2 to styrene, [Y(eta (5):eta (1)-C5Me4CH2SiMe2NCMe3){CH(CH3)Ph}(THF)] (3), contains a 1-phenethyl ligand derived from internal addition, hydrosilylation of styrene with PhSiH3 catalyzed by 2 gave both terminal- and internal-hydrosilylated products in a ratio of 1:1.4.

  DOI：

  10.1021/om010518r