Provided are a process for preparing an N ortho acyl substituted nitrogen-containing heterocyclic compound and an aminal iron (II) complex thereof, and the use of the complexes obtained by the process in an olefin oligomerization catalyst. The N ortho acyl substituted nitrogen-containing heterocyclic compound in the present invention is for example 2-acyl-1,10-phenanthroline or 2,6-diacetyl pyridine as shown in formula b, and the N ortho acyl substituted nitrogen-containing heterocyclic compound in the present invention is produced by a reaction of a precursor thereof in a substituted or unsubstituted nitrobenzene. Preferably the precursor shown in formula I in the present invention is produced by 1,10-phenanthroline reacting with trialkyl aluminum, or a halogenoalkyl aluminum RnAIXm, or a substituted or unsubstituted benzyl lithium Ph′CH2Li, followed by hydrolysis. The preparation method provided in the present invention has a few synthetic steps, an easy process, a low toxic effect, and reduces the preparation costs of the catalyst, and has a promising outlook in the industrial application.
提供了一种制备N-邻酰基取代的含氮
杂环化合物及其酰胺
铁(II)络合物的过程,以及所述过程获得的络合物在烯烃寡聚催化剂中的应用。本发明中的N-邻酰基取代的含氮
杂环化合物例如为2-酰基-1,10-邻
菲啰啉或2,6-二乙酰
吡啶,如b式所示,本发明中的N-邻酰基取代的含氮
杂环化合物是通过在取代或未取代的
硝基苯中对其前体进行反应而产生的。本发明中所提供的前体如式I所示,可由1,10-邻
菲啰啉与三烷基铝或卤代烷基铝RnAIXm或取代或未取代苄基
锂Ph′
CH2Li反应,随后进行
水解得到。本发明提供的制备方法具有较少的合成步骤,简便的工艺,低毒性效应,降低了催化剂的制备成本,并在工业应用中展现出良好的前景。