| 197729-24-1

• CAS: 197729-24-1
• 化学式: C₂₃H₁₈F₁₀O₂Ti
• 分子量: 564.259
• InChiKey: FJGOCOWHKAMIHX-UHFFFAOYSA-L

反应信息

• 作为反应物：
  描述：

  、 三(五氟苯基)硼烷 以 二氯甲烷-D2 为溶剂， 生成
  参考文献：
  名称：

  Solution structures and exchange phenomena of the new alkene polymerization initiators (η-C5Me5)TiMe(E)(μ-Me)B(C6F5 )3 (E = C6F5, OC6F5) and [(η-C5Me5)Ti(OC6F5)2 ][BMe(C6F5)3]

  摘要：

  分解，但3的稳定性较差，会发生离子对分解。

  DOI：

  10.1039/a700232g
• 作为产物：
  描述：

  dichloro(methyl)(pentamethylcyclopentadienyl)titanium(IV) 、 lithium pentafluorophenoxide 以 正己烷 为溶剂， 生成
  参考文献：
  名称：

  Solution structures and exchange phenomena of the new alkene polymerization initiators (η-C5Me5)TiMe(E)(μ-Me)B(C6F5 )3 (E = C6F5, OC6F5) and [(η-C5Me5)Ti(OC6F5)2 ][BMe(C6F5)3]

  摘要：

  分解，但3的稳定性较差，会发生离子对分解。

  DOI：

  10.1039/a700232g

文献信息

• Synthesis of a series of new, highly electrophilic, monocyclopentadienyltitanium olefin polymerization initiators
  作者：Mark J. Sarsfield、Sean W. Ewart、Tracey L. Tremblay、Aleksander W. Roszak、Michael C. Baird

  DOI：10.1039/a703112b

  日期：——

  The new compounds Ti(η-C 5 Me 5 )Me 2 E (E = C 6 F 5 or OC 6 F 5 ) and Ti(η-C 5 Me 5 )Me(OC 6 F 5 ) 2 have been synthesized and characterized by a variety of techniques, including 47/49 Ti NMR spectroscopy. All three compounds react with the borane B(C 6 F 5 ) 3 to form the highly electrophilic but thermally unstable species Ti(η-C 5 Me 5 )Me(E)(µ-Me)B(C 6 F 5 ) 3 and [(η-C 5 Me 5 )Ti(OC 6 F 5 ) 2 ][BMe(C 6 F 5 ) 3 ], the solution structures and dynamics of which are investigated and compared with those of the known compound Ti(η-C 5 Me 5 )Me 2 (µ-Me)B(C 6 F 5 ) 3 . Interestingly, Ti(η-C 5 Me 5 )Me(C 6 F 5 )( µ-Me)B(C 6 F 5 ) 3 undergoes neither significant ion-pair dissociation to the solvent separated ions [(η-C 5 Me 5 )TiMe(C 6 F 5 )] + and [BMe(C 6 F 5 ) 3 ] - nor borane dissociation to its precursors (η-C 5 Me 5 )TiMe 2 (C 6 F 5 ) and B(C 6 F 5 ) 3 ; indeed, both rotation about the Ti–C 6 F 5 bond and inversion at the chiral metal are slow on the NMR time-scale. In contrast, Ti(η-C 5 Me 5 )Me(OC 6 F 5 )( µ-Me)B(C 6 F 5 ) 3 is more labile and, like Ti(η-C 5 Me 5 )Me 2 (µ-Me)B(C 6 F 5 ) 3 , undergoes ion-pair dissociation, while [(η-C 5 Me 5 )Ti(OC 6 F 5 ) 2 ][BMe(C 6 F 5 ) 3 ] exists in solution as the solvent separated ion species [(η-C 5 Me 5 )Ti(OC 6 F 5 ) 2 ] + and [BMe(C 6 F 5 ) 3 ] - in equilibrium with its precursors, (η-C 5 Me 5 )TiMe(OC 6 F 5 ) 2 and B(C 6 F 5 ) 3 .

  我们合成了新化合物 Ti(η-C 5 Me 5 )Me 2 E (E = C 6 F 5 或 OC 6 F 5 ) 和 Ti(η-C 5 Me 5 )Me(OC 6 F 5 ) 2，并通过 47/49 Ti NMR 光谱等多种技术对其进行了表征。所有这三种化合物都与硼烷 B(C 6 F 5 ) 3 发生反应，形成高度亲电但热不稳定的物种 Ti(η-C 5 Me 5 )Me(E)(µ-Me)B(C 6 F 5 ) 3 和[(η-C 5 Me 5 )Ti(OC 6 F 5 ) 2 ][BMe(C 6 F 5 ) 3 ]，对其溶液结构和动力学进行了研究，并与已知化合物 Ti(η-C 5 Me 5 )Me 2 (µ-Me)B(C 6 F 5 ) 3 的溶液结构和动力学进行了比较。有趣的是，Ti(η-C 5 Me 5 )Me(C 6 F 5 )( µ-Me)B(C 6 F 5 ) 3 既没有明显的离子对解离成溶剂分离离子 [(η-C 5 Me 5 )TiMe(C 6 F 5 )] + 和 [BMe(C 6 F 5 ) 3 ] - 也没有明显的硼烷解离成其前体 (η-C 5 Me 5 )TiMe 2 (C 6 F 5 ) 和 B(C 6 F 5 ) 3 ；事实上，在核磁共振时间尺度上，围绕 Ti-C 6 F 5 键的旋转和手性金属的反转都很缓慢。相比之下，Ti(η-C 5 Me 5 )Me(OC 6 F 5 )( µ-Me)B(C 6 F 5 ) 3 的易变性更高，与 Ti(η-C 5 Me 5 )Me 2 (µ-Me)B(C 6 F 5 ) 3 一样，也会发生离子对解离、而[(η-C 5 Me 5 )Ti(OC 6 F 5 ) 2 ][BMe(C 6 F 5 ) 3 ]在溶液中作为溶剂分离的离子物种[(η-C 5 Me 5 )Ti(OC 6 F 5 ) 2 ]+ 和[BMe(C 6 F 5 ) 3 ]- 与其前体(η-C 5 Me 5 )TiMe(OC 6 F 5 ) 2 和 B(C 6 F 5 ) 3 处于平衡状态。