RACEMIC-SELECTIVE OBTAINING, YIELDING ANSA-METALLOCENE BIPHENOXIDE COMPLEXES, WITH RELATIVELY SHORT ISOMERISATION TIME Russian patent published in 2008 - IPC C07F17/00 

Abstract RU 2329272 C2

FIELD: chemistry.

SUBSTANCE: invention pertains to the method of obtaining racemic metallocene bipheoxide complexes with formula I , where R1-R8 and R13-R17, M, Z have values given in the formula of invention of reaction of bridged complexes of transition metals with cyclopentadienyl derivatives of alkaline metals or alkaline earth metals. The obtained reaction mixture is heated to temperature lying in the interval from -78 to 250°C, to the corresponding metallocene bipheoxide complexes.

EFFECT: possibility of use as a catalyst or components of catalyst for polymerisation of olefinic unsaturated compounds or as reagents or as catalysts in stereo-selective synthesis.

5 cl, 7 ex

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RU 2 329 272 C2

Authors

Damrau Khans-Robert-Khell'Mut

Mjuller Patrik

Garsija Valeri

Sido Kristian

Tell'E Kristian

Lelon Zhan-Fransua

Dates

2008-07-20Published

2003-10-22Filed