Method for producing metallocenes

Details Method for producing metallocenes Method for producing metallocenes

2006-01-10

2006-01-10

Nazario-Gonzalez, Porfirio (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Heavy metal containing

C556S012000, C556S043000, C556S053000, C556S058000, C534S011000, C534S015000, C526S160000, C526S943000, C502S103000, C502S117000

Reexamination Certificate

active

06984743

ABSTRACT:
The present invention relates to a process for preparing a metallocene, which comprises reacting a ligand starting compound with an adduct of the formula (I),in-line-formulae description="In-line Formulae" end="lead"?M1XnDa  (I)in-line-formulae description="In-line Formulae" end="tail"?where M1is a metal of group III, IV, V or VI of the Periodic Table of the Elements or an element of the lanthanide or actinide series, preferably titanium, zirconium or hafnium, particularly preferably zirconium,X are identical or different and are each halogen, C1–C10-alkoxy, C6–C10-aryloxy, C1–C10-alkylsulfonate such as mesylate, triflate, nonaflate, C6–C10-arylsulfonate such as tosylate, benzenesulfonate, C1–C10-alkylcarboxylate such as acetate, formate, oxalate or 1,3-dicarbonylate such as acetylacetonate or fluorinated 1,3-dicarbonylate, in particular chlorine, bromine, particularly preferably chlorine,n is an integer and is 2,3,4,5 or 6 and corresponds to the oxidation number of the metal M1,a is an integer or fraction and 0<a≦4 and a is preferably in the range from 0.5 to 2.5 and is in particular 1, 1.5 or 2,and D is a linear, cyclic or branched oligoether or polyether containing at least two oxygen atoms or an oligothioether or polythioether containing at least two sulfur atoms.

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