{Os(NH3)5(2,3-η2-PhOCH3)}(Otf)2 | 115289-80-0

• 英文名称: {Os(NH3)5(2,3-η2-PhOCH3)}(Otf)2
• 英文别名: [Os(NH3)5(η2-anisoline)](OTf)2
• CAS: 115289-80-0
• 化学式: 2CF₃O₃S*C₇H₂₃N₅OOs
• 分子量: 681.633
• InChiKey: LRJORBXFMBHONF-UHFFFAOYSA-M

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

• 作为反应物：
  描述：

  {Os(NH3)5(2,3-η2-PhOCH3)}(Otf)2 在 氢气 作用下， 以 甲醇 为溶剂， 生成 {(2-cyclohexen-1-one)pentaammineosmium(II)}(OTf)2
  参考文献：
  名称：

  Harman, W. Dean; Schaefer, William P.; Taube, Henry, Journal of the American Chemical Society, 1990, vol. 112, # 7, p. 2682 - 2685

  摘要：

  DOI：
• 作为产物：
  描述：

  pentaamminetrifluoromethanesulfonato osmium(III) trifluoromethanesulfonate 在 汞 、 锌 作用下， 以 甲醇 为溶剂， 以79%的产率得到{Os(NH3)5(2,3-η2-PhOCH3)}(Otf)2
  参考文献：
  名称：

  Harman, W. Dean; Schaefer, William P.; Taube, Henry, Journal of the American Chemical Society, 1990, vol. 112, # 7, p. 2682 - 2685

  摘要：

  DOI：

文献信息

• Stereodefined Tandem Addition Reactions of η²-Arenes:  A Versatile Route to Functionalized Cyclohexenes
  作者：Michael E. Kopach、Stanley P. Kolis、Ronggang Liu、Jason W. Robertson、Mahendra D. Chordia、W. Dean Harman

  DOI：10.1021/ja980264+

  日期：1998.7.1

  functionalized cyclohexenones, cyclohexadienes, and cyclohexenes. When BF3·OEt2 is used, it is possible to form a 4H-anisolium complex with a pendent boron enolate, which can ultimately undergo intramolecular addition to C1 to form the corresponding [4 + 2] cycloadduct. For cases in which an activated alkyne is added to a C4-alkylated anisole, a migration of the vinyl group occurs, leading to 4-methyl-3-vinylanisoles

  一系列苯甲醚与五氨锇 (II) 络合，所得 5,6-η2-苯甲醚络合物在三氟甲磺酸存在下用活化的烯烃或缩醛处理，形成 4H-苯甲醚络合物。这些中间体能够在 C3 处进行分子间或分子内亲核加成反应，并形成 2-甲氧基-1,3-环己二烯配合物。这些配合物很容易转化为官能化的环己烯酮、环己二烯和环己烯。当使用BF3·OEt2时，可以与悬垂的硼烯醇化物形成4H-茴香醚配合物，最终可以与C1发生分子内加成形成相应的[4+2]环加合物。对于将活化的炔烃添加到 C4-烷基化苯甲醚的情况，乙烯基会发生迁移，导致 4-甲基-3-乙烯基苯甲醚。
• Activation of Styrenes toward Diels−Alder Cycloadditions by Osmium(II):  Synthesis of Stereodefined Decalin Ring Systems
  作者：Stanley P. Kolis、Mahendra D. Chordia、Ronggang Liu、Michael E. Kopach、W. Dean Harman

  DOI：10.1021/ja973700l

  日期：1998.3.1

  complex [Os(NH3)5(η2-anisole)]2+ reacts with acetals or Michael acceptors to form 4-methoxystyrene complexes that are exclusively coordinated at the arene (η2). These styrene complexes are active dienes and readily participate in Diels−Alder reactions with electron-deficient olefins to form tetrahydronaphthalene complexes. The cycloadducts are formed typically as single diastereomers and are valuable as

  配合物 [Os(NH3)5(η2-anisole)]2+ 与缩醛或迈克尔受体反应形成 4-甲氧基苯乙烯配合物，该配合物仅在芳烃 (η2) 上配位。这些苯乙烯配合物是活性二烯，很容易与缺电子烯烃参与 Diels-Alder 反应，形成四氢萘配合物。环加合物通常以单一非对映异构体形式形成，并且作为功能化四氢萘和十氢萘的前体是有价值的。
• Substituent effects on .eta.2-coordinated arene complexes of pentaammineosmium(II)
  作者：W. Dean. Harman、Mikiya. Sekine、Henry. Taube

  DOI：10.1021/ja00225a024

  日期：1988.8

  (NH 3 ) 5 Os 2+ reagit avec les benzenes substitues pour donner des complexes dans lesquels l'arene est coordine a l'Os. Grande stabilite de ces complexes

  (NH 3 ) 5 Os 2+ 反应物 avec les 苯替代物倒入 donner des complexes dans lesquels l'arene est coordine a l'Os。Grande stabilite de ces 复合体
• Protonation of Unactivated Aromatic Hydrocarbons on Osmium(II):  Stabilization of Arenium Cations via Unprecedented η²- and η³-Coordination
  作者：Mark D. Winemiller、Michael E. Kopach、W. Dean Harman

  DOI：10.1021/ja963299n

  日期：1997.3.1

  Complexes of the form [Os(NH3)(5)(L)](OTf)(2) (where L an unactivated arene or polyaromatic hydrocarbon) are readily protonated by triflic acid (HOTf) to generate stable arenium, naphthalenium, and anthracenium cations. A series of substituted anisole complexes were also investigated. The metal stabilizes the hydrocarbon arenium system, in most cases, by coordinating the organic ligand in an eta(3) fashion. Where L = m-xylene, however, NMR data strongly suggest that the arenium ion is essentially dihapto-coordinated, where an allyl cation fragment remains uncoordinated. For the corresponding anisolium systems, NMR data indicate eta(2)-coordination. It is likely that eta(2) and eta(3) geometries represent limiting cases for a continuum of distorted allyl (pseudo-allyl) complexes. The pK(a) values determined for these complexes are dramatically higher than those of the free arenium cations.