2,6-Trip₂C₆H₃PbBr | 258834-24-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 2,6-Trip₂C₆H₃PbBr
• 英文别名: 2,6-(2,4,6-triisopropylphenyl)₂C₆H₃PbBr；[2,6-bis[2,4,6-tri(propan-2-yl)phenyl]phenyl]-bromolead
• CAS: 258834-24-1
• 化学式: C₃₆H₄₉BrPb
• 分子量: 768.889
• InChiKey: IJQMUQWJPXYISF-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  11.4
• 重原子数：
  38.0
• 可旋转键数：
  9.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  2,6-Trip₂C₆H₃PbBr 在 正丁基锂 作用下， 以 四氢呋喃 、 正己烷 、 苯 为溶剂， 反应 4.0h， 生成
  参考文献：
  名称：

  分子内四甲苯刘易斯加合物：合成与反应性

  摘要：

  一系列的苄基（二苯基膦基）和邻通过各自的锂试剂和四甲苯卤化物之间的亲核取代合成了被苯基（二苯膦基）取代的亚二甲苯基和1，2，5-苯二甲基。Lewis对通过X射线晶体学和NMR光谱表征。关于叠氮化物的添加，研究了四甲苯的反应性。在亚二甲基case的情况下，形成锗酰亚胺作为动力学控制的产物，其在加热时重新排列以给出次膦酰亚胺。亚锡和亚plum衍生物与金刚烷基叠氮化物反应，得到叠氮化物加合物。1-戊烯与磷杂芳烃非对映选择性地反应生成环状加成产物。三甲基甲硅烷基乙炔与苄基膦基取代的亚甲基苯撑和亚二甲苯基加成后得到环杂戊烯分子。苯乙炔与四元Ge-P加合物之间的加成产物在室温下添加后显示1,4-苯基迁移，生成环状膦。在与金刚烷基叠氮化物的反应中发现了烷基硝烯插入到磷酰三氮烷的炔烃加成产物的Ge-C键中。

  DOI：

  10.1002/chem.201601224

文献信息

• Deprotonation of Organogermanium and Organotin Trihydrides
  作者：Jakob-Jonathan Maudrich、Fatima Diab、Sebastian Weiß、Max Widemann、Taulant Dema、Hartmut Schubert、Kilian M. Krebs、Klaus Eichele、Lars Wesemann

  DOI：10.1021/acs.inorgchem.9b01822

  日期：2019.12.2

  Terphenyltin and terphenylgermanium trihydrides were deprotonated in reaction with strong bases, such as LiMe, LDA, or KBn. In the solid state, the Li salts of the germate anion 4 and 4a exhibit a Li-Ge contact. In the Li salt of the dihydridostannate anion 6a, the Li cation is not coordinated at the tin atom instead an interaction of the Li cation with the hydride substituents was found. Evidenced

  在与强碱（如LiMe，LDA或KBn）的反应中，对三联苯锡和三苯三锗锗进行了去质子处理。在固态下，发芽阴离子4和4a的Li盐表现出Li-Ge接触。在二氢锡酸根阴离子6a的Li盐中，Li阳离子在锡原子上不配位，而是发现了Li阳离子与氢化物取代基的相互作用。通过1H-7Li-HOESY NMR光谱证明，去质子化的氢化锡6a的Li-盐在甲苯溶液中表现出Li阳离子和氢化物取代基之间的接触，而在同种发芽盐4a的1H-7Li-HOESY NMR光谱中，没有在氢化物和锂信号之间发现了一个峰值。有机二氢锗酸酯和-锡酸酯作为亲核试剂与低价的14族亲电试剂反应。因此，合成了三种化合物：Ar-Ë' -EH 2 -Ar（E′，E ＝ Sn，Ge； Pb，Ge； Pb，Sn； Ar ＝ Ar′，Ar *）。在替代合成之后，在原位产生的[（Ar * PbH）2]和[（Ar'SnH）4]之间的反应中合成了Ar'SnH 2
• Synthesis and Characterization of the Metalloplumbylenes (η⁵-C₅H₅)(CO)₃M-P̈b-C₆H₃-2,6-Trip₂ (M = Cr, Mo, or W; Trip = −C₆H₂-2,4,6-i-Pr₃)
  作者：Lihung Pu、Philip P. Power、Imke Boltes、Regine Herbst-Irmer

  DOI：10.1021/om990774s

  日期：2000.2.1

  The reaction of Pb(Br)C6H3-2,6-Trip(2) (Trip = C6H2-2,4,6-i-Pr-3), generated in situ, with the salts Na[M(eta(5)-C5H5)(CO)(3)]. DME (M = Cr, Mo, or W; DME = 1,2-dimethoxyethane) affords the novel green, crystalline metalloplumbylenes (eta(5)-C5H5)(CO)(3)M-Pb-C6H3-2,6 -Trip(2) (M = Cr, 1; Mo, 2; W, 3) in moderate yield. The compounds were characterized spectroscopically (H-1, C-13, and Pb-207 NMR, IR, and UV-vis) and by combustion analysis. In addition the X-ray crystal structures of 1-3 were determined. The compounds feature strongly bent geometries at lead (M-Pb-C = 108.6(2)-113.58(9)degrees) and relatively long M-Pb distances (2.9092(9) Angstrom, Cr; 2.9845(7) Angstrom, Mo; 2.9809(10) Angstrom, 3.0055(6) Angstrom W), which are consistent with single M-Pb bonding. The stability of the complexes, which melt with decomposition in the range 210-226 degrees C, is attributed to steric protection of the metal centers by the very large -C6H3-2,6-Trip(2) substituent. The compounds are the first examples of metalloplumbylenes that feature a bent two-coordinate lead geometry.
• η³-Allyl Coordination at Pb(II)
  作者：Sebastian Weiß、Maximilian Auer、Klaus Eichele、Hartmut Schubert、Lars Wesemann

  DOI：10.1021/acs.organomet.8b00766

  日期：2019.1.28

  Allylmagnesium chloride and methyl-propenyl-magnesium bromide were reacted with bulky substituted organolead and organotin halides (Ar*PbBr)(2), (Ar'PbBr)(2), (Ar*SnCl)(2) (Ar* = 2,6-trip(2)C(6)H(3)-, trip = 2,4,6-triisopropylphenyl, Ar' = 2,6-mes(2)C(6)H(3)-, mes = 2,4,6-trimethylphenyl). The allyl ligand coordinates in an eta(3)-coordination mode at organoplumbylene fragments. In the solid state as well as in solution, eta(3)-coordination was characterized by crystal structure analysis and Saunders' isotopic perturbation technique. For the plumbylene Ar*Pb(C3H5), a solid state Pb-207 magic angle spinning (MAS) NMR spectrum could be obtained. The isotropic chemical shift is -435 ppm, and the magnitude of the Pb-207 chemical shift tensor of 7000(500) ppm is among the greatest observed experimentally. The methylallyl ligand coordinated at a plumbylene fragment exhibits two short and one long Pb-C interaction. In reaction with aniline, the allyl ligand reacts as a leaving group to give amidoplumbylenes.