锆氧杂环络合物合成方法探索

Approach of Synthesis of Zirconium Oxygen Heterocyclic Complexes

邻甲氧基苯基锂和 6,6-二甲基富烯 (或 6,6-二乙基富烯 )反应得配体锂盐 ( Cp′ Li) ,Cp′ Li直接和 Cp Zr Cl3· DME反应生成 2个新的锆络合物 Cp′ Cp Zr Cl2 。 BBr3和 Li Br分别用来使 Cp′ Cp Zr Cl2 环化 ,发现在相同条件下 BBr3比 Li Br3更有效。Cp′ Cp Zr Cl2 通过和 BBr3反应得到 2个新的锆氧杂环络合物。 4个新的锆络合物经元素分析、1 H NMR和

O methoxy phenyl lithium reacts with 6,6 dimethyl(or diethyl) fulvene to give ligand lithium (Cp ′Li,Cp ′ represents cyclopentadienyl with substituents). Cp ′Li reacts directly with CpZrCl 3·DME to give two new complexes Cp ′CpZrCl 2. BBr 3 and LiBr were used to make Cp ′CpZrCl 2 cyclize respectively. It was found that BBr 3 was more effective than LiBr at the same conditions. Two new zircomium oxygen heterocyclic complexes were obtained by dealing complexes Cp ′CpZrCl 2 with BBr 3. Two new zirconium oxygen heterocyclic complexes were obtained by dealing complexes Cp ′CpZrCl 2 with BBr 3. Four new complexes were determined by elemental analysis, 1H NMR and MS.