Homolysis of the Ln–N bond: Synthesis, characterization and catalytic activity of organolanthanide(II) complexes with furfuryl- and tetrahydrofurfuryl-functionalized indenyl ligands
作者:Yongyong Wu、Shaowu Wang、Changtao Qian、Enhong Sheng、Meihua Xie、Gaosheng Yang、Qiqing Feng、Lijun Zhang、Xinliang Tang
DOI:10.1016/j.jorganchem.2005.06.017
日期:2005.9
[η5:η1-(C4H7OCH2C9H6)]2LnII (Ln = Yb (5), Ln = Eu (6)) and [η5:η1-(C4H3OCH2C9H6)]2LnII (Ln = Yb (7), Ln = Eu (8)) in reasonable to good yields. Treatments of [(Me3Si)2N]3LnIII(μ-Cl)Li(THF)3 (Ln = Yb, Eu) with 2 equiv. of C4H7OCH2C9H6SiMe3 (3) or C4H3OCH2C9H6SiMe3 (4), respectively, in toluene at moderate high temperatures afforded, after workup, the corresponding organolanthanide(II) complexes with formula
通过单电子还原消除反应合成了一系列具有糠基和四氢糠基官能化的茚基配体的新型有机镧系元素(II)配合物。[[Me 3 Si)2 N] 3 Ln III(μ-Cl)Li(THF)3(Ln = Yb,Eu)的处理当量为2。C 4 H 7 OCH 2 C 9 H 7(1)或C 4 H 3 OCH 2 C 9 H 7(2)),分别在在中等高温下甲苯制备,后处理后,得到相应金属有机(II)配合物与式[η 5:η 1 - (C 4 H ^ 7 OCH 2 C ^ 9 ħ 6)] 2 LN II(LN =镱(5),Ln为铕(6))和[η 5:η 1 - (C 4 H ^ 3 OCH 2 C ^ 9 ħ 6)] 2 LN II =镱((LN 7),LN =铕(8))以合理至良好的收益率。用[ 2 ]当量处理[(Me 3 Si)2 N] 3 Ln III(μ-Cl)Li(THF)3(Ln = Yb,Eu)。在甲苯中在适当的高温下分别处理C