| 摘要 |
FIELD: chemistry.SUBSTANCE: invention relates to organometallic synthesis, specifically to a method for combined production of 2,3-dialkylmagnesacyclohept-2-enes of general formula(1), where R=CH, H-CH,-CH, and 4,5-dialkylmagnesacyclohept-4-enes of general formula. The method includes reacting 2,3-dialkylmagnesacyclohept-2-enes with ethylene in the presence of a catalyst - zirconocene dichloride CpZrClunder excess ethylene pressure of 1.0-1.5 MPa with molar ratio of 2,3-dialkylmagnesacyclohept-2-ene:CpZrCl=10:(0.3-0.6). The method is carried out in a solvent mixture of diethyl ether and tetrahydrofuran, taken in volume ratio of 5:1, at temperature of about 20°C for 6-8 hours.EFFECT: obtained compounds can be used as cocatalysts in oligomerisation and polymerisation of olefins, acetylene and dienes, and as initial reactants for synthesis of different bifunctional and heterocyclic compounds.1 tbl, 1 ex |
