876126-86-2

Upstream product

• 66-71-7 1,10-Phenanthroline 
• 579-66-8 2,6-diethylaniline 
• 33795-37-8 1,10-phenanthroline-2-carboxyaldehyde 
• 3002-77-5 2-methyl-1,10-phenanthroline 

Downstream Products

• 913341-26-1 dichloro(2-formyl-1,10-phenanthroline(2,6-diethylanil))nickel(II) 
• 1072830-63-7 (2-formyl-1,10-phenanthroline(2,6-diethylanil))trichlorochromium(III) 
• 876127-06-9 [(2-formyl-1,10-phenanthroline 2,6-diethylanil)]FeCl₂ 

Relevant academic research and scientific papers

N ortho acyl substituted nitrogen-containing heterocyclic compound and process for preparing aminal iron (II) complexes thereof

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

The invention discloses an ethylene oligomerization method. The oligomerization reaction of ethylene is realized in a reaction system comprising a 2-formyl-1,10-phenanthroline dichloroaniline iron (II) chloride complex main catalyst, an aluminiferous promoter, water and an organic solvent, wherein the organic solvent is alpha-olefin of Cn (n is less than or equal to 10 and n is more than 4). In the formula (I), R1, R2, R3, R4, R5 or R6 is independently selected form hydrogen, C1-C6 alkyl, halogen, C1-C6 alkoxy and nitryl. The method overcomes technical defects, optimizes an oligomerization reaction process, is high in oligomerization activity, enables the ethylene oligomerization reaction process to be fast in initiation, stable in operation, low-toxicity and environment-friendly, is good in catalysis effect, well balances the cost, and is strong in practicability; the cost of the ethylene oligomerization reaction is greatly reduced, the catalysis effect and the production cost are comprehensively taken into consideration, and the industrialized prospect is wide.