[Re2(CO)8(μ-O=PPh2CH=CHPPh2)] | 866367-65-9

• 英文名称: [Re2(CO)8(μ-O=PPh2CH=CHPPh2)]
• CAS: 866367-65-9
• 化学式: C₃₄H₂₂O₉P₂Re₂
• 分子量: 1008.9
• InChiKey: ROAGPZVSFFWXKD-ZFUJZCRHSA-N

反应信息

• 作为产物：
  描述：

  eq-[Re2(CO)9(η1-trans-1,2-bis(diphenylphosphino)ethene)] 在 Me₃NO*2H₂O 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 以19%的产率得到[Re2(CO)8(μ-O=PPh2CH=CHPPh2)]
  参考文献：
  名称：

  Rhenium carbonyl complexes with monodentate-coordinated diphosphines: activation of terminal phosphino groups towards amine-oxide oxidation

  摘要：

  Terminal phosphino groups of [Re-2(CO)(9)(eta(1)-P-P)] (P-P = diphosphines) are activated towards oxidation by Me3NO. The respective reactions of MC3NO with [Re-2(CO)(9){eta(1)-P(o-anisyl)(2)(CH2)PPh2}], [Re-2(CO)(9){eta(1)-PPh2(CH2)(3)P(o-anisyl)(2)}] and [Re-2(CO)(9)(eta(1)-trans-PPh2CH=CHPPh2)] were studied to investigate the mechanism of this oxidation. The results are consistent with an intramolecular pathway involving a cyclic intermediate, without exchange of the coordinated and terminal phosphino groups. A mechanism which involves an interaction of the terminal phosphino group with a carbonyl ligand is proposed. In sharp contrast to eq-[Re-2(CO)(9)(eta(1)-P-P)] (P-P = Ph2P(CH2)(n)PPh2, n = 1-6), eq-[Re-2(CO)(9)(eta(1)-trans-PPh2CH=CHPPh2)] appears to be indefinitely stable towards equatorial -> axial isomerization at room temperature, thus, allowing its crystal structure to be determined. (c) 2005 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/j.jorganchem.2005.05.010