[PdCl2(η4-C4((t)Bu)2Me2)]2 | 64456-52-6

• 英文名称: [PdCl2(η4-C4((t)Bu)2Me2)]2
• 英文别名: [PdCl2(η4-C4Me2((t)Bu(2)]2
• CAS: 64456-52-6
• 化学式: C₂₈H₄₈Cl₄Pd₂
• 分子量: 739.341
• InChiKey: FVWMCBDBPJKKNV-UHFFFAOYSA-J

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：

  [PdCl2(η4-C4((t)Bu)2Me2)]2 在 Na₂CO₃ 作用下， 以 二氯甲烷 为溶剂， 以73%的产率得到[PdCl(η3-C4(=CH2)Me((t)Bu)2)]2
  参考文献：
  名称：

  含1–3-η-1,2-二叔丁基-3-甲基-4-亚甲基环丁烯基配体的钯配合物的光谱合成和X射线结构测定

  摘要：

  的（1,2-二-叔-丁基-3,4-二dimethylcyclobutadiene）钯络合物[钯2 {C 4（Me）的2（BU吨）2 } 2氯4 ]发生反应用碱，用HCl的损失，得到[ Pd 2 {C 4：CH 2（Me）（Bu t）2 } 2 Cl 2 ]（2）。乙酰丙酮衍生物[Pd {C 4：CH 2（Me）（Bu t）2的X射线晶体结构测定}（acac）]（3）显示与环丁烯基配体键合的乙酰基乙酰基萘钯铝1-3-η在C 4处带有不配位的亚甲基取代基，在C 1和C 2处带有叔丁基，在C 3处带有甲基。Nmr（1 H和13 C）光谱表明（2）中的配体具有相同的结构。合成的以下衍生物也是如此：[Pd 2（A）2 X 2 ]（X = Br，I或SCN），[Pd（A）（L）Cl]（L = Bu t NC，对-ClC 6 H 4 NC，对-MeC 6 H 4 NH2，PMe 2 Ph，PMePh 2，PPh

  DOI：

  10.1039/dt9820000999
• 作为产物：
  描述：

  [(σ,π-CBu(t)=CMeCMe=CBu(t)Cl)PdCl]2 以 not given 为溶剂， 生成 [PdCl2(η4-C4((t)Bu)2Me2)]2
  参考文献：
  名称：

  Acetylenes and noble-metal compounds. Part 13. Formation of cyclobutadienepalladium complexes from σ,π-butadienyl complexes in the PdCl₂-induced dimerisation of t-butyl(methyl)acetylene(4,4-dimethylpent-2-yne)

  摘要：

  DOI：

  10.1039/dt9790000167

文献信息

• Acetylenes and noble-metal compounds. Part 14. Insertion reactions of 6-chloro-2,2,4,5,7,7-hexamethylocta-3,5-dien-3-ylpalladium compounds; the PdCl2-catalysed carbonylation of acetylenes to cyclopentadienones
  作者：Elizabeth A. Kelley、G. Albert Wright、Peter M. Maitlis

  DOI：10.1039/dt9790000178

  日期：——
• Ring Methyl Activation of 1,2-Dimethyl-3,4-di(<i>tert</i>-butyl)cyclobutadiene Complexes of Palladium Giving <i>e</i><i>xo</i>-Methylene-η³-cyclobutenyl Complexes of Palladium
  作者：Kazushi Mashima、Daisuke Shimizu、Tsuneaki Yamagata、Kazuhide Tani

  DOI：10.1021/om0204484

  日期：2002.11.1

  We found the first ring methyl activation of an eta(4)-cyclobutadiene complex. Base-promoted ring methyl activation of the cyclobutadiene-palladium(II) complex [PdCl2(eta(4)-C4Me2(Bu-t)(2))](2) (2) in the presence of triethylamine afforded the dinuclear exo-methylene-eta(3)-cyclobutenyl complex [PdCl(eta(3)-C-4(=CH2)Me(Bu-t)(2))](2) (3) in 81% yield. In the case of pyridine as base, a mixture of 3 and [C5H5]NH][PdCl3(eta(4)-C4Me2((BU)-B-t)(2))] (4) was obtained. The complex 4 was alternatively derived from the reaction of 2 with 2 equiv of C5H5N.HCl. The ring methyl activation of 2 in the presence of 2,2'-bipyridine and triethylamine followed by treatment with AgBF4 led to the formation of the cationic complex [Pd(eta(3)-C-4(= CH2)Me(Bu-t)(2))(bipy)]]BF4 (6) in 83% yield. The mononuclear exo-methylene-eta(3)-cyclobutenyl structure of 6 was confirmed by spectral data and a crystallographic study.
• Unique ring-methyl deprotonation of η4-1,2-dimethyl-3,4-di(tert-butyl)cyclobutadiene complexes of palladium(II) bearing phosphine ligand
  作者：Kazushi Mashima、Daisuke Shimizu、Tsuneaki Yamagata、Kazuhide Tani

  DOI：10.1016/s0020-1693(03)00145-2

  日期：2003.8

  We report unique ring-methyl deprotonation of an eta(4)-cyclobutadiene complex [PdCl2 (eta(4)-(C4Bu2Me2)-Bu-t)](2) (1). Reaction of 1 with 2 equiv. of triphenylphosphine in the presence of triethylamine afforded an exo-methylene-eta(3)-cyclobutenyl palladium complex [Pd(mu-Cl)(eta(3)-C-4(=CH2)(Bu-t)(2)Me)(PPh3)](2) (3) in quantitative yield. The reaction of complex 1 with 2 equiv. of DPPE gave a cationic complex [Pd(eta(3)-C-4(-CH2)(Bu-t)(2)Me)(DPPE)][Cl] (4a) with the release of HCl. Upon treated with triethylamine and AgOTf, a cationic complex [Pd(eta(3)-C-4(=CH2)(Bu-t)(2)Me)(DPPE)][OTf] (4b) was isolated as yellow microcrystalline solids. The cationic exomethylene- eta(3)-cyclobutentyl structure of 4 was revealed by spectral data together with a crystallographic study for complex 4a. (C) 2003 Elsevier Science B.V. All rights reserved.