FIELD: organic chemistry, chemical technology.
SUBSTANCE: invention relates to a method for preparing olefins by the oligomerization reaction of olefins in the presence of a catalytic system for the oligomerization reaction of olefins that involves the following stages: a) contacting alkylmetal and pyrrole-containing compound in the presence of unsaturated hydrocarbon in inert atmosphere to form the solution alkylmetal/pyrrole; b) contacting the chrome source with the alkylmetal/pyrrole solution in inert atmosphere to form the catalytic system and the following contacting of catalytic system with alpha-olefin. The claimed method provides the more effective method for preparing the catalytic system and provides the improved thermoregulation of a method for preparing the catalytic system.
EFFECT: improved preparing method.
15 cl, 3 tbl, 4 ex
