876126-92-0Relevant academic research and scientific papers
N ortho acyl substituted nitrogen-containing heterocyclic compound and process for preparing aminal iron (II) complexes thereof
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, (2016/04/20)
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.
One method of oligomerization of ethylene
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, (2016/10/10)
The present invention discloses an ethylene oligomerization method, which comprises that ethylene is subjected to an oligomerization reaction in a reaction system containing an iron 2-benzoyl-1,10-phenanthroline polyamine chloride coordination compound main catalyst represented by a formula (I), an aluminum-containing cocatalyst, water and an organic solvent, wherein the organic solvent is alpha-olefin of Cn (n is more than 4 and is less than or equal to 10), and in the formula, R1-R5 are respectively and independently selected from hydrogen, C1-C6 alkyl, halogen, C1-C6 alkoxy and nitro. According to the present invention, the technical prejudice is overcome, and the oligomerization reaction process is optimized, such that the oligomerization activity is high, the ethylene oligomerization reaction process has characteristics of rapid initiation, stable operation, low toxicity, environmental protection, good catalysis effect and cost balancing, and strong practicality, the ethylene oligomerization reaction cost is substantially reduced, the catalytic effect and the production cost are comprehensively considered, and the industrial prospect is broad.
