HIGHLY ACTIVE AND HIGHLY SELECTIVE CATALYST OF ETHYLENE OLIGOMERISATION AND METHOD OF OBTAINING HEXENE OR OCTENE WITH APPLICATION OF SAID CATALYST Russian patent published in 2015 - IPC C07F11/00 C08F4/42 

FIELD: chemistry.

SUBSTANCE: invention relates to complex chrome compound for selective ethylene oligomerisation. Compound includes chiral ligand, represented by formula

1 or 2

given below. Radical values are as follows: R¹, R², R³, R⁴, R⁷, R⁸, R⁹ and R¹⁰, each, independently represents (C₆-C₂₀) aryl, and substituents R¹, R², R³, R⁴, R⁷, R⁸, R⁹ and R¹⁰ can be additionally substituted with one or more substituents, selected from (C₁-C₁₀) alkyl, (C₁-C₁₀) alkoxy, (C₆-C₂₀) aryloxy and halogen; R⁵, R⁶, R¹¹ and R¹², each, independently represents (C₆-C₂₀) aryl, or (C₁-C₁₀) alkyl, and substituents R⁵, R⁶, R¹¹ and R¹² can be substituted with (C₁-C₁₀) alkyl, (C₁-C₁₀) alkoxy, (C₆-C₂₀) aryloxy and halogen; X¹-X⁶, each, independently represents halogen, acetoacetyl or 2-ethylhexanoyl, L is selected from tetrahydrofurane, diethyl ether, toluene, chlorobenzene, dichlorobenzene, acetylacetone and 2-ethylhexanone; and * and ** indicate position of chiral carbon and each independently has (S)- or (R)- configuration. Also claimed are complex chrome compounds of formulas 9-14, catalytic composition, methods of selective obtaining 1-hexene and 1-octene.

EFFECT: invention makes it possible to obtain complex chrome compounds, applied as highly active and highly selective catalyst of ethylene oligomerisation.

15 cl, 2 dwg, 1 tbl, 25 ex