METHOD OF OBTAINING METALLOCENE HALOGENIDE COMPOUNDS Russian patent published in 2008 - IPC C07F17/00 

Abstract RU 2335504 C2

FIELD: chemistry.

SUBSTANCE: invention claims improved method of obtaining metallocene halogenide compounds of the general formula (V) , where M is Zr, L is Cl, R1 is CH3, R4 is C1-C6 alkyl; R5, R6, R7, R8 and R9 are H, or C1-C20 alkyl, C7-C20 arylalkyl, or two vicinial R5, R6, R7, R8 and R9 form condensed 6-member unsaturated cycle, by the effect of halogenisation agent of the formula III, R3xTLw, where L is Cl, T is Al, R3 is C1-20 alkyl, to a compound of the formula V, where L is substituted to L' , where L' is methyl.

EFFECT: high output and easy separation of racemic and meso-form due to high solubility of intermediate alkylated metallocene.

4 cl, 3 ex

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RU 2 335 504 C2

Authors

Gvidotti Simona

Bal'Boni David

Dates

2008-10-10Published

2004-04-29Filed