trans-mesitylacetonitrilebis(tricyclohexylphosphine)nickel(II) tetrafluoroborate | 205449-56-5

• 英文名称: trans-mesitylacetonitrilebis(tricyclohexylphosphine)nickel(II) tetrafluoroborate
• CAS: 205449-56-5
• 化学式: BF₄*C₄₇H₈₀NNiP₂
• 分子量: 866.601
• InChiKey: KFLHQKRMEYSVIW-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
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• 重原子数：
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• 可旋转键数：
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• 环数：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  四氟化硼(+3)铊(+1) 、 {NiBr(2,4,6-Me3C6H2)(PCy3)2} 以 四氢呋喃 为溶剂， 以55%的产率得到trans-mesitylacetonitrilebis(tricyclohexylphosphine)nickel(II) tetrafluoroborate
  参考文献：
  名称：

  Hydrovinylation of olefins catalyzed by cationic nickel complexes [Ni(2,4,6-Me3C6H2) (CH3CN) P2]BF4

  摘要：

  The hydrovinylation of several olefins and alkynes by the ionic nickel precursor trans-[Ni(2,4,6-Me3C6H2)(CH3CN)(P(CH2Ph)(3))(2)]BF4 in THF solution was studied. The activity of the catalytic system showed strong dependence on the nature of the substrate. Only conjugated diolefins and some strained mono-olefins led to hydrovinylation products with nearly complete conversion. Selectivity was also variable: for norbornene, exo-2-vinylnorbornane (94%) was obtained selectively, whereas isoprene gave a mixture of 9 hydrovinylation compounds. The turnover rate of the reaction at 25 degrees C and 15 bar of initial pressure of ethylene with an olefin/[Ni] ratio of 1000/1 was 4300 h(-1) for norbornene and 30 h(-1) for isoprene. The chiral monodentate phosphines, (cis-myrtanyl)diphenylphosphine and myrtenyldiphenylphosphine, were obtained. The catalytic precursors containing these phosphines were bring tested in the hydrovinylation of styrene and norbornene, and the enantiomeric excess obtained was between 3-7%. Diphenylacetylene was also found to be active in the hydrovinylation reaction; cis- and trans-3,4-diphenyl-1,3-hexadiene, products of a double vinylation of the triple bond were obtained. (C) 1997 Elsevier Science B.V.

  DOI：

  10.1016/s1381-1169(97)00082-4