((2,6-C6H3(CH2P(CF3)2)2)Pt)2(μ-Cl)B(C6F5)4 | 1120346-84-0

• 英文名称: ((2,6-C6H3(CH2P(CF3)2)2)Pt)2(μ-Cl)B(C6F5)4
• CAS: 1120346-84-0
• 化学式: C₂₄BF₂₀*C₂₄H₁₄ClF₂₄P₄Pt₂
• 分子量: 1986.89
• InChiKey: YOWWZJZFBFMHCG-UHFFFAOYSA-M

反应信息

• 作为产物：
  描述：

  (mesitylenium)B(C6F5)4 、 (2,6-C6H3(CH2P(CF3)2)2)PtMe 以 二氯甲烷 为溶剂， 以63%的产率得到((2,6-C6H3(CH2P(CF3)2)2)Pt)2(μ-Cl)B(C6F5)4
  参考文献：
  名称：

  Acceptor Pincer Coordination Chemistry of Platinum: Reactivity Properties of (^CF₃PCP)Pt(L)⁺ (L = NC₅F₅, C₂H₄)

  摘要：

  Synthetic strategies toward the synthesis of electron-poor pincer complexes ((PCP)-P-CF3)PtH and ((PCP)-P-CF3)Pt(eta(2)-H-2)(+) are described. Metathesis of ((PCP)-P-CF3)PtCl with hydride reagents does not lead to ((PCP)-P-CF3)PtH; ((PCP)-P-CF3)PtCl with KH in tetrahydrofuran (THF) afforded an unusual metallated bimetallic pincer product ((PCP)-P-CF3)Pt[kappa(1)-C,kappa P3-,C,P-2,6-(CHP(CF3)(2))(CH2P(CF3)(2))-C6H3]PtCl, which has been structurally characterized. Chloride abstraction from ((PCP)-P-CF3)PtCl or protonolysis of ((PCP)-P-CF3)PtMe in the presence of H-2 gives the structurally characterized hydride-bridged dimer {((PCP)-P-CF3)Pt}(2)(mu-H)(+). In the presence of trapping ligands H2O, C2H4, or pentafluoropyridine, the corresponding complexes ((PCP)-P-CF3)Pt(L)(+) (L = H2O, C2H4, NC5F5) are cleanly produced and have been structurally characterized. The C2H4 and NC5F5 adducts may be alternatively prepared by methide abstraction from (CF3PCP)PtMe with Ph3C+B(C6F5)(4)(-) in the presence of trapping ligand. Evidence for the transient formation of ((PCP)-P-CF3)PtH from treatment of ((PCP)-P-CF3)PtCl or ((PCP)-P-CF3)Pt(NC5F5)(+) with Et3Si+B(C6F5)(4)(-) is presented. ((PCP)-P-CF3)Pt(C2H4)(+) serves as a catalyst for ethylene hydrogenation (0.30 turnovers h(-1), 70 degrees C) and hydrosilation with Et3SiH (460 turnovers h(-1), RT) and Cl3SiH (5 turnovers h(-1), RT). At elevated temperatures, ((PCP)-P-CF3)Pt(C2H4)(+) also exhibits limited ethylene dimerization activity (0.07 turnovers h(-1), 155 degrees C and 1-butene isomerization (0.9 turnovers h(-1), 80 degrees C).

  DOI：

  10.1021/om8008876