Bis(arylimino)pyridine derivatives of Group 4 metals: preparation, characterization and activity in ethylene polymerization
作者:Fausto Calderazzo、Ulli Englert、Guido Pampaloni、Roberto Santi、Anna Sommazzi、Marianna ZinnaPresent address: Polimeri Euro
DOI:10.1039/b415997g
日期:——
Titanium tetrachloride reacts with 2,6-bis[(1-phenylimino)ethyl]pyridine, 1, and 2,6-bis[1-(2,6-diisopropylphenylimino)ethyl]pyridine, 2, giving the adducts of general formulae [Ti(1)Cl3]Cl, 3, and [Ti(2)Cl3]Cl, 6, the latter through the intermediacy of the covalently bonded [Ti(2)Cl4], 4. Heating 6 leads to reduction to the titanium(III) derivative [Ti(2)Cl3], 12, the latter characterized by X-ray
四氯化钛与2,6-双[(1-苯基亚氨基)乙基]吡啶1反应,然后2,6-双[1-(2,6-二异丙基苯基亚氨基)乙基]吡啶,2给出通式[Ti(1)Cl 3 ] Cl,3和[Ti(2)Cl 3 ] Cl,6的加合物,后者是通过共价键合的[Ti(2)Cl 4的中间体)],4。加热6导致减少生成钛(III)衍生物[Ti(2)Cl 3 ],12,后者的特征是X射线衍射方法。[Ti(1)Cl 3 ] Cl与氢的反应甲苯 MAO的解决方案继续进行 甲基化在邻位的-位吡啶环得到钛(IV)衍生物[Ti(C 22 H 21 N 3)Cl 3 ],8。[Ti(2)Cl 3 ] Cl与MAO的反应产生了包含[Ti(2)Cl 2(OAlCl 3)],9的产物混合物。单晶X射线衍射研究表明,通过将6与AlOCl反应独立制备的化合物9是包含–OAlCl 3部分的化合物的罕见情况。来自锆和ha的四氯化物,含1或2,已经以高收率获得了相应的加合物[M(L)Cl