[Me2Al(μ-OC6H3(i-Pr)2-2,6)]2 | 256394-29-3

• 英文名称: [Me2Al(μ-OC6H3(i-Pr)2-2,6)]2
• CAS: 256394-29-3
• 化学式: C₂₈H₄₆Al₂O₂
• 分子量: 468.635
• InChiKey: MBANLVNBRAHALN-UHFFFAOYSA-L

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：
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• sp3杂化的碳原子比例：
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• 拓扑面积：
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• 氢给体数：
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• 氢受体数：
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反应信息

• 作为产物：
  描述：

  2,6-di(propan-2-yl)phenolate;samarium(3+);trimethylalumane 生成 [Me2Al(μ-OC6H3(i-Pr)2-2,6)]2
  参考文献：
  名称：

  Interactions of Remote Alkyl Groups with Lanthanide Metal Centers: Synthesis, Characterization and Ligand Redistribution Reactions of Heterobimetallic Species Containing Trialkylaluminum Fragments

  摘要：

  DOI：

  10.1002/1099-0682(200203)2002:3<723::aid-ejic723>3.0.co;2-2

文献信息

• Reactivity of Trimethylaluminum with Lanthanide Aryloxides:  Adduct and Tetramethylaluminate Formation
  作者：Andreas Fischbach、Eberhardt Herdtweck、Reiner Anwander、Georg Eickerling、Wolfgang Scherer

  DOI：10.1021/om020784k

  日期：2003.2.1

  substituted lanthanide(III) and -(II) aryloxide complexes with trimethylaluminum (TMA) was investigated. The solvent-free, π-arene-bridged dimers [Ln(OAriPr,H)3]2, derived from the ortho-iPr2-substituted aryloxide ligand OC6H3iPr2-2,6, form bis-TMA adduct complexes, Ln(OAriPr,H)3(AlMe3)2, for the metal centers yttrium, samarium, and lanthanum. Homoleptic monomeric Ln(OAr)3, featuring a large La center

  研究了各种高度取代的镧系元素（III）和-（II）芳氧基配合物与三甲基铝（TMA）的反应。无溶剂，π-芳烃桥联的二聚体[Ln（OAr i镨，H）3 ] 2，从邻衍生我PR 2 -取代的芳基氧化物配体OC 6 H ^ 3我PR 2 -2,6，形式双-加合物TMA络合物，LN（OAR我Pr，H）3（AlMe 3）2，用于金属中心钇，sa和镧。均配型单体LN（OAR）3，设有一个大的La中心和空间体积更大的邻吨卜2 -取代的芳基氧化物配体，得到单-加合物TMA的La（OAR吨Bu，R）3（AlMe 3）（R = H，Me）。这些加合物的杂桥部分“ Ln（μ-OAr）（μ-Me）Al”在溶液中是刚性的，而在室温下，桥接和末端甲基铝的交换在NMR时间尺度上是快速的。单体Ln（OAr t较小的稀土金属中心钇和的Bu，R）3（R = H，Me，t Bu）与TMA反应生成（Ar tBu，R O）2 Ln [（μ-Me）2
• Ancillary aryloxide ligands in ethylene polymerization catalyst precursors
  作者：Andrea V Firth、Jeffrey C Stewart、Aaron J Hoskin、Douglas W Stephan

  DOI：10.1016/s0022-328x(99)00422-2

  日期：1999.12

  The compounds CpTiCl2(OC6H3-i-Pr-2) (1), CpTiCl(OC6H3-i-Pr-2)(2) (2), CpTi(R)(OC6H3-i-Pr-2)(2) (R = t-Bu 3, s-Bu 4, n-Bu 5, Me 6) have been prepared and characterized. Compounds 1 or 2 in the presence of 500 equivalents of methylaluminoxane (MAO) act as catalyst precursors for ethylene polymerization. While the catalysts derived from the monocyclopentadienyl complexes are much less active that the metallocenes, there is a clear enhancement in the activity of about 40% as a result of the inclusion of a second aryloxide ligand. Reactions of 1 with AlMe3 revealed stepwise formation of CpTi(Me)Cl(OC6H3-i-Pr-2) 7 and CpTi(Me)(2)(OC6H3-i-Pr-2) 8, while subsequent addition of AlMe3 afforded complete conversion to 8, with formation of the aluminum species [AlMe2(OC6H3-i-Pr-2)](n) 9. In contrast, the catecholate complex CpTi(O2C6H4)Cl 10 reacts with AlMe3 yielding the paramagnetic species [CpTi(O-2(C6H4)). AlClMe2], 11. Incorporation of aryloxide ligands in modified metallocenes was readily accomplished with the preparation of Cp2ZrCl(OC6H3-i-Pr-2) 12, Cp2ZrCl(OC6H5) 13, Cp2ZrMe(OC6H5) 14 and Cp2TiCl(OC6H3-i-Pr-2) 15. In combination with MAO, 12, 14 and 15 effect the polymerization of ethylene with an 11% increase in activity over the parent metallocenedichlorides. The implications of the increased activity are considered. Crystallographic data are reported for 2, 3, 6, 9, 11, 12 and 13. (C) 1999 Elsevier Science S.A. All rights reserved.