Synthesis and Catalytic Properties of Phenylene-Bridged Binuclear Organolanthanide Complexes
作者:Holming F. Yuen、Tobin J. Marks
DOI:10.1021/om7008952
日期:2008.1.1
Using base-free Ln[N(SiHMe2)2]3 complexes as highly effective protodeamination reagents, the binuclear lanthanide complexes p-bisη5-(2,3,4,5-tetramethylcyclopentadienyl)Ln[N(SiHMe2)2]2}phenylene [p-Ln2] (Ln = Y, La, Lu) and m-bisη5-(2,3,4,5-tetramethylcyclopentadienyl)La[N(SiHMe2)2]2}phenylene [m-La2] were synthesized from the corresponding phenylene-linked tetramethylcyclopentadienes. The resulting
使用游离碱-LN [N(SiHMe 2)2 ] 3种配合物作为高效protodeamination试剂,所述双核镧系络合物p -双η 5 - (2,3,4,5-四甲基环戊二烯)LN [N(SiHMe 2)2 ] 2 }亚苯基[ p -Ln 2(Ln为Y,镧,Lu)和米-双η 5 - (2,3,4,5-四甲基环戊二烯)的La [N(SiHMe 2)2 ] 2 }亚苯基[ m -La 2由相应的亚苯基连接的四甲基环戊二烯合成[α]。所得产物用作新型的多中心均相4f催化剂。反应性研究表明,这些双核有机镧系元素络合物可有效催化氨基烯烃,氨基炔烃和氨基二烯的分子内加氢胺化/环化反应,在60°C下的转换频率高达10 h -1。