cis-[Pd(CH2SiMe3)2(pyridine)2] | 632326-75-1

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吡咯
• 英文名称: cis-[Pd(CH2SiMe3)2(pyridine)2]
• 英文别名: cis-Pd(CH2SiMe3)2py2
• CAS: 632326-75-1
• 化学式: C₁₈H₃₂N₂PdSi₂
• 分子量: 439.056
• InChiKey: VZSVFZCFYACBHL-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
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• 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

• 作为反应物：
  描述：

  2-((2-OMe-Ph)2P)-4-Me-benzenesulfonic acid 、 cis-[Pd(CH2SiMe3)2(pyridine)2] 以 二氯甲烷 为溶剂， 以68%的产率得到[(2-((2-OMe-Ph)2P)-4-Me-benzenesulfonate)Pd(pyridine)(CH2SiMe3)]
  参考文献：
  名称：

  Ethylene Polymerization by Palladium Alkyl Complexes Containing Bis(aryl)phosphino-toluenesulfonate Ligands

  摘要：

  The reaction of L'2PdR2 (L' = pyridine (py), pyridazine; L'(2) = cyclooctadiene, TMEDA) with 2-{(2-OMe-Ph)(2)P}-4-Me-benzenesulfonic acid ([PO-OMe]H, [1a]H) or 2-{(2-Et-Ph)(2)P}-4-Me-benzenesulfonic acid ([PO-Et]H, [1b]H) yields [PO-OMe]Pd(R)(L) (L = py, R = CH2SiMe3 (2a), (CH2Bu)-Bu-t (3a), CH2Ph (4a); R = Me, L = pyridazine (5a), py (6a), PPh3 (7a)) or [PO-Et]Pd(Me)(py) (6b). 2a and 6b have square-planar structures in which the alkyl group is cis to the phosphine and the [PO]Pd chelate rings are puckered. The reaction of 2a and 3a with B(C6F5)(3) yields {[PO-OMe]Pd(R)}(2) (R = CH2SiMe3 (8a), (CH2Bu)-Bu-t (9a)). 8a is a sulfonate-bridged dimer in the solid state. 2a, 6a, and 6b polymerize ethylene to linear polyethylene that contains low levels of Me branches, one C=C unit per chain (mostly 1- or 2-olefins), and M-n in the range 6000 to 19 000. 6a is slightly more active but produces polymers with similar molecular weight and structure compared to 6b. 6a copolymerizes ethylene and hexene at low ethylene pressure (5 atm), but no a-olefin incorporation is observed at high pressure (30 atm). An ethylene polymerization mechanism is proposed, which involves insertion and chain transfer of [PO]Pd(R)(ethylene) species (II) and ethylene trapping and much slower chain-walking of the [PO]Pd(CH2CH2R) species (III) formed by insertion of II.

  DOI：

  10.1021/om700869c
• 作为产物：
  描述：

  (三甲基硅基)甲基氯化镁 、 dichlorobis(pyridine)palladium(II) 以 吡啶 、 乙醚 为溶剂， 以50%的产率得到cis-[Pd(CH2SiMe3)2(pyridine)2]
  参考文献：
  名称：

  Synthesis of dialkyl, diaryl and metallacyclic complexes of Ni and Pd containing pyridine, α-diimines and other nitrogen ligands

  摘要：

  The alkylation of NiCl(2)py(4) or PdCl(2)py(2) with organomagnesium or organolithium reagents affords dialkyl complexes cis-MR(2)py(2) (R = Me, CH2SiMe3, CH2Ph, CH2CMe2Ph, 2,4,6-C6H2Me3). The methyl and trimethylsilyl derivatives undergo ligand exchange reactions with chelating nitrogen ligands (alpha-diimines or 2-imidoylpyridines), yielding the corresponding dialkyl derivatives in good to excellent yields. A catalytic amount of PMe3 induces the transformation of the nickel complex Ni(CH2CMe2Ph)(2)py(2) into the metallacyclic derivative NiCH2CMe2-o-C6H4(py)(2). The latter, and the related palladacycle Pd(CH2CMe2-o-C6H4) (cod), also undergo facile ligand exchange reactions. (C) 2003 Elsevier B.V. All rights reserved.

  DOI：

  10.1016/s0022-328x(03)00691-0