FIELD: chemistry.
SUBSTANCE: catalyst system for selective oligomerisation of ethylene, which contains a ligand in a P-C-C-P skeleton of formula 1, 2, 3 or 4, a chromium or molybdenum or tungsten compound and a promoter. Described also are a method of producing 1-hexene via selective trimerisation of ethylene and a method of producing 1-octene via selective tetramerisation of ethylene using said catalyst system. Catalyst activity is stable for a period of time sufficient for maintaining reaction rate constant. [Formula 1] 
(S,S)-enantiomer, [Formula 2] 
(R,R)-enantiomer, [Formula 3] 
(R,R)-1,2-trans-diphosphine enantiomer, [Formula 4] 
(S,S)-1,2-trans-diphosphine enantiomer.
EFFECT: method of producing 1-octene via selective tetramerisation of ethylene.
7 cl, 4 tbl, 50 ex
| Title | Year | Author | Number |
|---|---|---|---|
| HIGHLY ACTIVE AND HIGHLY SELECTIVE CATALYST OF ETHYLENE OLIGOMERISATION AND METHOD OF OBTAINING HEXENE OR OCTENE WITH APPLICATION OF SAID CATALYST | 2010 |
|
RU2541528C2 |
| CATALYST SYSTEMS FOR TETRAMERISATION OF ETHYLENE AND METHOD OF PRODUCING 1-OCTENE USING SAID CATALYST SYSTEMS | 2008 |
|
RU2461423C2 |
| HALOGEN-CONTAINING COMPOUND AND ITS USE, CATALYST COMPOSITION AND METHODS FOR OLIGOMERIZATION, TRIMERIZATION AND TETRAMERIZATION OF ETHYLENE | 2019 |
|
RU2802019C2 |
| HALOGEN-CONTAINING COMPOUND AND ITS USE AS LIGAND IN ETHYLENE OLIGOMERIZATION CATALYST | 2019 |
|
RU2802018C2 |
| ARYLPHENOXY CATALYST SYSTEM FOR PRODUCING HOMOPOLYMER OR COPOLYMERS OF ETHYLENE AND ALPHA-OLEFINS | 2005 |
|
RU2374267C2 |
| NOVEL METHOD FOR OBTAINING INTERMEDIATE COMPOUNDS, APPLIED IN OBTAINING NEP INHIBITORS | 2011 |
|
RU2573824C2 |
| DIPHOSPHINE AND METAL COMPLEXES | 2006 |
|
RU2408600C2 |
| CATALYST COMPOSITION AND ETHYLENE OLIGOMERISATION METHOD | 2008 |
|
RU2467797C2 |
| METHOD FOR PREPARING VORICONAZOLE AND ITS ANALOGUES | 2013 |
|
RU2619928C2 |
| METHOD OF OBTAINING PROPIONIC ACID DERIVATIVES | 2010 |
|
RU2544989C2 |
