| 183555-78-4

• CAS: 183555-78-4；183812-61-5
• 化学式: C₂₁H₄₅NOP₂Ru
• 分子量: 490.612
• InChiKey: RXGFNSQWVJCEEL-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：

  在 Mg 、 1,2-dibromomethane 作用下， 以 四氢呋喃 为溶剂， 生成
  参考文献：
  名称：

  Characterization and Reactivity of an Unprecedented Unsaturated Zero-Valent Ruthenium Species:  Isolable, Yet Highly Reactive

  摘要：

  Magnesium reduction of cis,cis,trans-RuCl2(CO)(2)L(2) (L = P(t)Bu(2)Me) yields isolable Ru(CO)(2)L(2), shown by solution spectroscopies and X-ray diffraction to have trans phosphines but cis carbonyls, in a nonplanar structure which resembles a trigonal bipyramid with one equatorial ligand missing. This unusual geometric structure is traced by ab initio (MP2) study to enhanced back-donation to CO by zero-valent Ru. This molecule reacts in time of mixing to add CO, MeNC, O-2, CS2, C2H4, or PhC=CPh. Rapid oxidative addition occurs with H-2, HCl, Cl-2, and PhC=CH. Oxidative addition is slower with MeCl, Me(3)SiH, and MeOH, which leads to more complicated reaction schemes. Reaction with PPh(2)H gives not oxidative addition but addition and displacement, yielding Ru(CO)(2)-(PPh(2)H)(2)(P(t)Bu(2)Me) and equimolar free P(t)Bu(2)Me. Magnesium reduction of cis,cis,trans-RuCl2(CO)(2)L'(2) proceeds analogously for L' = (PPr3)-Pr-t, but for L' = PPh(3), decomposition and ligand scavenging give Ru(CO)(2)(PPh(3))(3). Reduction of cis,trans-RuCl2(CO)(CNMe)L(2) gives the product of oxidative addition of a (t)Bu C-H bond: RuH(CO)(CNMe)-[eta(2)-P(CMe(2)CH(2))(t)BuMe]L, showing the influence of electron density at unsaturated Ru(O) on its persistence.

  DOI：

  10.1021/ja960967w