Parent-amido (NH2) palladium(II) complexes: Synthesis, reactions, and catalytic hydroamination
作者:Youngwon Kim、Soonheum Park
DOI:10.1016/j.crci.2015.12.008
日期:2016.5
Abstract The treatment of [PdL3(NH3)](OTf)n (n = 1; L3 = (PEt3)2(Ph), (2,6-(Cy2PCH2)2C6H3), n = 2; L3 = (dppe)(NH3)) with NaNH2 in tetrahydrofuran at ambient temperature or −78 °C afforded the dimeric and monomeric parent-amido palladium(II) complexes anti-[Pd(PEt3)(Ph)(μ-NH2)]2 (1), [Pd(dppe)(μ-NH2)]2(OTf)2 (2), and Pd(2,6-(Cy2PCH2)2C6H3)(NH2) (3), respectively. The molecular structures of the amido-bridged
摘要 [PdL3(NH3)](OTf)n (n = 1; L3 = (PEt3)2(Ph), (2,6-(Cy2PCH2)2C6H3), n = 2; L3 = (dppe)( NH3)) 与四氢呋喃中的 NaNH2 在环境温度或 -78 °C 下得到二聚体和单体母体-酰氨基钯 (II) 配合物抗-[Pd(PEt3)(Ph)(μ-NH2)]2 (1), [分别为 Pd(dppe)(μ-NH2)]2(OTf)2 (2) 和 Pd(2,6-(Cy2PCH2)2C6H3)(NH2) (3)。酰胺桥联 (μ-NH2) 二聚体复合物 1 和 2 的分子结构由单晶 X 射线晶体学确定。单体酰胺络合物 3 与痕量水反应得到羟基络合物 Pd(2,6-(Cy2PCH2)2C6H3)(OH)(4)。将配合物 3 暴露在过量的水中导致配合物完全转化为两种物质 [Pd(2,6-(Cy2PCH2)2C6H3)(OH2)]+