| 摘要 |
Provided are a N ortho acyl substituted nitrogen-containing heterocyclic compound and a process for preparing aminal iron (II) complexes thereof, and 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 a 2-acyl-1,10-phenanthroline or a 2,6-diacetyl pyridine as shown in the formula b; 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 reacting the 1,10-phenanthroline with a trialkyl aluminum, or a halogenoalkyl aluminum RnAlXm, or a substituted or unsubstituted benzyl lithium Ph'CH2Li, followed by hydrolysis. The preparation method provided in the present invention has few synthetic steps, an easy process, a low toxic effect, reduces the preparation costs of the catalyst, and has a promising outlook in industrial application. |
