Preparation of formoxyl substitutional 1, 10-phenanthroline coordination compound and application of prepared coordination compound as catalyst

Abstract

The invention provides a method for preparing a coordination compound chlorination2-formoxyl-1, 10-phenanthroline condensation amine and iron (II) in a formula (I) and application of the coordination compound as an ethylene oligomerization catalyst. Variants in the formula (I) are defined in the specification. In the process for preparing 2-formoxyl-1, 10-phenanthroline by 1, 10-phenanthroline, the method adopts trimethyl aluminum as a starting material and then conducts hydrolysis and oxidizing reaction with nitrobenzene to obtain 2-formoxyl-1, 10-phenanthroline, then the 2-formoxyl-1, 10-phenanthroline is condensed with substitution aniline to obtain 2-formoxyl-1, 10-phenanthroline condensation amine ligand, and the ligand reacts with ferrous chloride to obtain the target product. The preparation method is few in step and simple in process, reduces catalyst preparation cost, adopts non-toxic trimethyl aluminum to replace potassium cyanide used in a routine preparation method, and is wide in industrial prospects.

Description

technical field The present invention relates to the preparation method of olefin oligomerization catalyst, relate more specifically to the preparation method of formyl substituted 1,10-phenanthroline amide iron (II) complex, and the complex thus prepared as ethylene Application of oligomerization catalysts. Background technique Ethylene oligomerization is one of the most important reactions in the olefin polymerization industry. Through oligomerization, cheap small molecule olefins can be transformed into products with high added value. Ethylene oligomerization product-linear α-olefin (LAO) is an important organic chemical raw material. For example LAOC 4 -C 30 It can be used to prepare daily cleaning agents, flotation agents, emulsifiers, lubricating components of refrigerators and drilling fluids, plasticizers, various additives, low-viscosity synthetic oils, polymers and copolymers, petroleum And petroleum product additives, higher alkylamines, higher organoaluminum...

AI Technical Summary

Problems solved by technology

However, this catalyst preparation method has the following disadvantages: too many ligand synthesis steps, and the need to use highly toxic potassium cyanide to participate in the reaction