(dfppe)Pt(OTf)2 | 258874-56-5

• 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: (dfppe)Pt(OTf)2
• 英文别名: [(C6F5)2PCH2CH2P(C6F5)2]Pt(OTf)2
• CAS: 258874-56-5
• 化学式: C₂₈H₄F₂₆O₆P₂PtS₂
• 分子量: 1251.45
• InChiKey: RZXWKIZMWAWDRL-UHFFFAOYSA-L

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

• 作为产物：
  描述：

  (1,2-bis(bis(pentafluorophenyl)phosphino)ethane)dichloroplatinum(II) 、 三氟甲磺酸三甲基硅酯 以 二氯甲烷 为溶剂， 以31%的产率得到(dfppe)Pt(OTf)2
  参考文献：
  名称：

  降冰片烯与亲电铂配合物加氢胺化的机理研究：质子转移的作用

  摘要：

  使用 L2Pt(OTf)2 (L2 = (t)Bu2bpy, (t)BuC6H4N== C(CH3)C( CH3)==NC6H4(t)Bu、(C6H5)2PCH2CH2P(C6H5)2、(C6F5)2PCH2CH2P(C6F5)2、S​​-BINAP)。伪一级动力学表明反应速率几乎不依赖于辅助配体。机理研究不支持烯烃配位机制，而是与涉及磺酰胺配位和产生转移到降冰片烯的酸性质子的机制一致。据推测，所得降冰片基阳离子随后被游离磺酰胺攻击，并且从该加合物中损失质子完成加氢胺化。铂-磺酰胺络合物很容易发生去质子化，得到从反应溶液中分离出来的μ-酰氨基铂桥二聚体。这些研究还涉及使用 Me3SiPh 和 Me3SnPh 作为非亲核质子陷阱。Ph-E 键的断裂用于检测酸性催化活性物质。

  DOI：

  10.1021/ja8030104

文献信息

• Metal−Alkyl Bond Protonolysis Studies of (dfepe)Pt(Me)X Complexes in Acidic Media
  作者：Byron L. Bennett、Justin M. Hoerter、James F. Houlis、Dean M. Roddick

  DOI：10.1021/om990743x

  日期：2000.2.1

  Protonolyses of (dfepe)Pt(Me)X (dfepe = (C2F5)(2)PCH2CH2P(C2F5)(2); X = O2CCF3, OSO2H, OSO2CF3, OSO2F) complexes in their respective neat acid solutions cleanly yield (dfepe)Pt(X)(2) products with rates dependent on relative acid strengths. No (dfepe)Pt(Me)(X)(2)(H)(+) intermediates were observed by variable-temperature. NMR in dichloromethane. The (perfluoroaryl)phosphine analogue (dfppe)Pt(Me)(2) (dfppe = (C6F5)(2)PCH2CH2P(C6F5)(2)) is much less resistant to protonolysis and rapidly converts to (dfppe)Pt(OTf)(2) in HOTf at 20 degrees C. Kinetic studies for protonolysis in CF3CO2H(D) and CF3SO3H(D) solvents were carried out. Examination of ionic strength and chloride anion effects in trifluoroacetic acid indicate that prior association of anion to (dfepe)Pt(Me)X systems is not kinetically important. k(H)/k(D) values were obtained from competitive protonolysis studies (CF3CO2H, 9 +/- 2 (20 degrees C); H2SO4, 7 +/- 2 (100 degrees C); CF3SO3H, 2.7 +/- 0.7 (100 degrees C)). In the case of CF3CO2H, separate kinetic runs in protio and deuterio acids gave a lower k(H)/k(D) value of 3.6(4). The data obtained in these studies do not differentiate between limiting S(E)2 and S-E(oxidative) protonolysis mechanisms.