Cp2Zr(CH2SiMe2CH2) | 89530-31-4

• 英文名称: Cp2Zr(CH2SiMe2CH2)
• CAS: 89530-31-4
• 化学式: C₁₄H₂₀SiZr
• 分子量: 307.622
• InChiKey: ILRFXBGWOVHEDG-UHFFFAOYSA-N

计算性质

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

• 作为反应物：
  描述：

  Cp2Zr(CH2SiMe2CH2) 在 聚合甲醛 作用下， 以 正戊烷 为溶剂， 以80%的产率得到
  参考文献：
  名称：

  Tikkanen, Wayne R.; Petersen, Jeffrey L., Organometallics, 1984, vol. 3, # 11, p. 1651 - 1655

  摘要：

  DOI：
• 作为产物：
  描述：

  二氯二茂锆 、 ((trimethylsilyl)methyl)magnesium hydride 以 四氢呋喃 为溶剂， 以44%的产率得到Cp2Zr(CH2SiMe2CH2)
  参考文献：
  名称：

  Tikkanen, Wayne R.; Liu; Egan Jr., James W., Organometallics, 1984, vol. 3, # 6, p. 825 - 830

  摘要：

  DOI：

文献信息

• Highly Lewis Acidic Bifunctional Organoboranes
  作者：Warren E. Piers、Geoffrey J. Irvine、V. Clifford Williams

  DOI：10.1002/1099-0682(200010)2000:10<2131::aid-ejic2131>3.0.co;2-h

  日期：2000.10

  donor groups on boron serve to stabilize the Lewis acid centers. More recently, advances in the chemistry of diboryls with highly Lewis acidic boron centers substituted with perfluoroaryl groups have been made. In particular, compounds of general formula (F5C6)2B−linker−B(C6F5)2 have been prepared and their chemistry examined. In this Microreview, we survey the classes of bifunctional boron Lewis acids

  螯合路易斯酸的发展程度与多齿路易斯碱的发展程度不同。尽管如此，此类化合物因其增强碱性底物活化和阴离子选择性结合的潜力而引起了人们的兴趣。有机二硼基化合物形成一类双齿路易斯酸，其历史悠久但相对欠发达。存在许多例子，其中硼上的供体基团用于稳定路易斯酸中心。最近，具有被全氟芳基取代的高路易斯酸性硼中心的二硼基化合物的化学取得了进展。特别地，已经制备了通式 (F5C6)2B-接头-B(C6F5)2 的化合物并检查了它们的化学性质。在这篇微观评论中，我们调查了已知的双功能硼路易斯酸的类别，包括它们的合成、性质和阴离子结合化学。特别强调这些路易斯酸在从简单的茂金属前体生成烯烃聚合催化剂中所起的作用。
• Reactivity studies of the zirconium-induced insertion of isonitriles into a 1-sila-3-zirconacyclobutane ring. Structural and chemical evidence of carbenium-like intermediates for the intramolecular 1,2-silyl shift and reductive coupling reactions
  作者：Frederic J. Berg、Jeffrey L. Petersen

  DOI：10.1021/om00112a030

  日期：1989.10
• Competitive pathways associated with CO insertion into a 1-sila-3-zirconacyclobutane ring. Observation of intramolecular 1,2-silyl shift and reductive CO coupling reactions
  作者：Jeffrey L. Petersen、James W. Egan

  DOI：10.1021/om00152a038

  日期：1987.9.1
• 1-Sila-3-metallacyclobutanes, precursors for the generation of highly electrophilic Group 4 metallocene alkyl cations. Spectroscopic and structural evidence of a weakly bound THF ligand in [(C5Me5)2Zr(CH2SiMe3)(THF)][BPh4]
  作者：David M. Amorose、Rip A. Lee、Jeffrey L. Petersen

  DOI：10.1021/om00053a023

  日期：1991.7

  The protonation of L(n) activated M(CH2SiMe2CH2) (L(n) = (C5H5)2, SiMe2(C5H4)2 M = Ti, Zr; L(n) = (C5Me5)2 M = Zr) with [NEt3H][BPh4] in THF produces the corresponding (trimethylsilyl)methyl-substituted metal alkyl tetraphenylborate salts [L(n)M(CH2SiMe3)(THF)[BPh4] (1-5). These complexes have been characterized by elemental analysis and H-1 and C-13 NMR measurements. The molecular structure of [Cp*2Zr-(CH2SiMe3)(THF)][BPh4] (5) has been determined by X-ray diffraction methods. Complex 5 crystallizes in space group P2(1)/a with a = 26.911 (9) angstrom, b = 13.929 (4) angstrom, c = 12.569 (4) angstrom, beta = 101.73 (2)-degrees, V = 4613 (3) angstrom 3, and Z = 4. The steric bulk of the pentamethylcyclopentadienyl ligands controls the orientation of the THF molecule, placing it nearly ''parallel'' to the equatorial plane of the metallocene wedge. Attempts to prepare the THF-free cation [Cp*2Zr(CH2SiMe3)]+ by the reaction of Cp*2 activated Zr(CH2SiMe2CH2) with [N(n-butyl)3H][BPh4] in toluene led to the isolation of the previously reported zwitterion Cp*2Zr(+)-(m-C6H4)-B(-)Ph3 (6). Compounds 1-4 (in CH2Cl2) and compound 6 (in toluene) behave as ethylene polymerization catalysts, producing high-density polyethylene (HDPE) under mild conditions in the absence of an Al cocatalyst.
• Evidence of ketenimine formation during the multiple C-C coupling of isocyanides by stabilized Group 4 metallacyclobutanes
  作者：Cristina Valero、Matthias Grehl、Doris Wingbermuehle、Lioba Kloppenburg、Donald Carpenetti、Gerhard Erker、Jeffrey L. Petersen

  DOI：10.1021/om00014a006

  日期：1994.2

  Multiple C-C coupling of isocyanides has been demonstrated by the ambient-pressure reactions of CNMe with Cp2M(N(CMe3)CC(=NCMe3)CH2SiMe2CH2) and the high-pressure reactions of CNCMe3 with CP2M(CH2SiMe2CH2), which afford Cp2M(N(Me)C-C(=NCMe3)C(=NCMe3)CH2SiMe2CH2) and Cp2M(N-(CMe3)C(=C=NCMe3)C(=NCMe3)CH2SiMe2CH2) (M = Zr, Hf), respectively.