METHOD OF OBTAINING ENANTIOMERICALLY ENRICHED η-UMINOACYL NEOMENTYL-SUBSTITUTED COMPLEXES WITH CHIRAL CENTRE ON Zr" Russian patent published in 2014 - IPC C07F7/00 

FIELD: chemistry.

SUBSTANCE: invention relates to method of obtaining cyclopentadienyl-1-neomentyl-4,5,6,7-tetrahydroindenyl zirconium chloro η²-iminoacyl complexes CpCp'ZrC(R)=N(Cy)(Cl) (R=Et, Bu) of general formula (1a, b) , where R=Et (a), n-Bu (b). Method includes interaction of cyclopentadienyl-1-neomentyl-4,5,6,7-tetrahydroindenyl zirconium dichloride (π-complex) with alkyl derivatives of lithium RLi, where R is mentioned above, with molar ratio π-complex: RLi = 1:(0.8-1.3) in argon atmosphere with cooling to -78°C in toluol. After that, temperature is increased to room temperature and cyclohexylisocyanide (CyCN) id added in quantity equimolar to π-complex.

EFFECT: obtaining η²-iminoacyl neomentyl-substituted complexes of zirconium which can be used as components of catalytic systems in processes of stereoselective poly- and oligomerisation of unsaturated compounds, as well as in fine organic and metalorganic synthesis.

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