Synthesis of a novel pyridine-diamino bridged diphosphine ligand and its macrocyclic metal complexes
作者:Qing-Shan Li、Chong-Qing Wan、Feng-Bo Xu、Hai-Bin Song、Zheng-Zhi Zhang
DOI:10.1016/j.ica.2005.01.008
日期:2005.4
corresponding 10-numbered monometallic macrocyclic complexes with an uncoordinated pyridyl bridge. The monometallic chelate PdCl2(PNP1) continued to react with Ag+ or Cu+ giving the μ-Cl bridged bicyclic metallic complex (μ-Cl)2[PdCl(PNP1)]2. The diphenylphosphine group coordinated with metal ion in cis-form in all the 10-numbered macrocyclic metal complexes. Ligand PNP1 and another known analogous 2,
摘要利用HPPh2与多聚甲醛和2,6-双的曼尼希反应方便地制备了一种新型的带有吡啶-二氨基桥的长链二膦配体2,6-双(N-苄基-N-二苯基膦基甲基氨基)吡啶(PNP1)。 (N-苄氨基)吡啶高产率。配体与金属络合物M(COD)Cl2(M = Pd,Pt),M(CH3CN)4ClO4(M = Cu,Ag)和M(CO)6(M = Mo,W)的反应得到相应的10配位的吡啶基桥联的单数大环金属配合物。单金属螯合物PdCl2(PNP1)继续与Ag +或Cu +反应,得到μ-Cl桥接的双环金属络合物(μ-Cl)2 [PdCl(PNP1)] 2。在所有10个编号的大环金属络合物中,二苯基膦基团与金属离子配位成顺式形式。配体PNP1和另一个已知的类似物2,6-双(N-二苯基膦基氨基)吡啶(PNP2)与Au(SMe2)Cl反应,分别得到相应的双金属Au2Cl2(PNP1)和Au2Cl2(PNP2)。后者的双金属配合物继续与Ag