[OsH3(η5-pentamethylcyclopentadienyl)(P(i-Pr)3)] | 1313012-46-2

• 英文名称: [OsH3(η5-pentamethylcyclopentadienyl)(P(i-Pr)3)]
• CAS: 1313012-46-2
• 化学式: C₁₉H₃₉OsP
• 分子量: 488.692
• InChiKey: ABDUTDFXWJCOSM-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：

  Os(hydride)6(triisopropylphosphine)2 、 1,2,3,4,5-五甲基环戊二烯 以 甲苯 为溶剂， 以80%的产率得到[OsH3(η5-pentamethylcyclopentadienyl)(P(i-Pr)3)]
  参考文献：
  名称：

  Preparation of Half-Sandwich Osmium Complexes by Deprotonation of Aromatic and Pro-aromatic Acids with a Hexahydride Brønsted Base

  摘要：

  Half-sandwich osmium(II) and osmium(IV) complexes have been prepared by reaction of the hexahydride complex OsH(6)(P(i)Pr(3))(2), (1) with phenol, pyrrole, and methylcyclopentadienes. The reaction with phenol initially leads to OsH(3)(OPh)(P(i)Pr(3))(2) (2). In toluene, 2 undergoes reductive elimination of phenol, which tautomerizes to give OsH(2)(eta(4)-2,4-cyclohexadien-1-one)(P(i)Pr(3))(2) (3). The equilibrium mixture of 2 and 3 evolves into OsH(eta(5)-PhO)(P(i)Pr(3))(2) (4) with loss of molecular hydrogen. The addition of HBF(4) to diethyl ether solutions of 4 leads to [OsH(eta(6)-PhOH)(P(i)Pr(3))(2)]BF(4) (6). The reaction of 1 with pyrrole gives OsH(eta(5)-C(4)H(4)N)(P(i)Pr(3))(2) (7), which by addition of HBF(4) affords [OsH(2)(eta(5)-C(4)H(4)N)(P(i)Pr(3))(2)]BF(4) (8). Similarly, treatment of 1 with methylcyclopentadiene leads to OsH(eta(5)-C(5)H(4)Me)(P(i)Pr(3))(2). (9), which reacts with HBF(4) to give [OsH(2)(eta(5)-C(5)H(4)Me)(P(i)Pr(3))(2)]BF(4) (10). Treatment of toluene solutions of 1 with tetramethylcyclopentadiene gives a mixture of the trihydride OsH(3)(eta(5)-C(5)HMe(4))(P(i)Pr(3)) (11; 56%) and the dihydride-tolyl derivatives OsH(2)(m-tolyl)(eta(5)-C(5)HMe(4))(P(i)Pr(3)) (12; 14%) and OsH(2)(p-tolyl)(eta(5)-C(5)HMe(4))(P(i)Pr(3)) (13; 30%). However in n-octane the trihydride 11 is formed in 85% yield. In contrast to tetramethylcyclopentadiene, pentamethylcyclopentadiene reacts with 1 in toluene to give selectively the trihydride OsH(3)(eta(5)-C(5)Me(5))(P(i)Pr(3)) (14). Complexes 2 and 7 have been characterized by X-ray diffraction analysis.

  DOI：

  10.1021/om200371r