(η(5)-C5Me5)Re(CO)(NO)(COOSiEt3) | 192699-84-6

• 英文名称: (η(5)-C5Me5)Re(CO)(NO)(COOSiEt3)
• CAS: 192699-84-6
• 化学式: C₁₈H₃₀NO₄ReSi
• 分子量: 538.733
• InChiKey: ZIFJIHUJDOUYDI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  None
• 重原子数：
  None
• 可旋转键数：
  None
• 环数：
  None
• sp3杂化的碳原子比例：
  None
• 拓扑面积：
  None
• 氢给体数：
  None
• 氢受体数：
  None

反应信息

• 作为产物：
  描述：

  pentamethylcyclopentadienyl(carbonyl)(nitrosyl)(COOH)rhenium 、 三乙基氯硅烷 在 N,N-二异丙基乙胺 作用下， 以 二氯甲烷 为溶剂， 以61%的产率得到(η(5)-C5Me5)Re(CO)(NO)(COOSiEt3)
  参考文献：
  名称：

  Preparation and characterization of the rhenium silyl esters (η5-C5Me5)(CO)(NO)ReC(O)OSiR3 (SiR3 = SiMe2Ph, SiEt3)

  摘要：

  Three synthetic approaches to the rhenium silyl esters Cp*(CO)(NO)ReC(O)OSiEt3 (3) and Cp*(CO)(NO)ReC(O)OSiMe2Ph (4) were evaluated. (a) Treatment of a CH2Cl2 solution of Cp*(CO)(2)(NO)Re+BF4- with a silanolate NaOSiEt3 (5) or NaOSiMe2Ph (6) provided 90% isolated yields of 3 and 4. These stable orange-yellow solids an extremely moisture sensitive: traces of water hydrolyze them to Cp*(CO)(NO)ReCO2H and the parent silanol. IR and NMR spectral data of 3 and 4 are consistent with nonchelating mu(eta(1)-C:eta(1)-O) metalloester structures. Less efficient preparative routes to 3 and 4 include treatment of (b) Cp*(CO)(NO)ReCO2H with the requisite chloroalkylsilane and (NPr2Et)-Pr-i, and (c) Cp*(CO)(NO)ReCO2-Na+ (7Na(+)) with the chloroalkylsilane. The new rhenium CO2 adducts Cp*(CO)(NO)ReCO2-M+ (7Li(+), 7Na(+)) were generated by deprotonation of Cp*(CO)(NO)ReCO2H with excess LIH or NaH THF suspensions at 0 degrees C. Both 7Li(+) and 7Na(+) were characterized by their solution IR spectra and by the formation of their derivatives with silyl and tin chlorides.

  DOI：

  10.1016/s0022-328x(96)06898-2