JP2008504331A5

JP2008504331A5 -

Info

Publication number: JP2008504331A5
Application number: JP2007518540A
Authority: JP
Filing date: 2005-06-30
Publication date: 2008-08-14

Claims

Formula (I),

A racemo-selective method for preparing an ansa-metallocene complex comprising:
Formula (II)

A ligand starting compound of
Formula (III)

And transition metal compounds of (However,
R ¹ and R ^{1 ′} are the same or different, and each is hydrogen or an organic group having 1 to 40 carbon atoms,
R ² and R ^{2 ′} are the same or different, and each is hydrogen or an organic group having 1 to 40 carbon atoms,
R ³ and R ^{3 ′} are the same or different, and each is an organic group having 1 to 40 carbon atoms,
T, T ′ are the same or different, and each is a divalent organic group having 1 to 40 carbon atoms, and together with the cyclopentadienyl ring, at least one other A saturated or unsaturated, substituted or unsubstituted cyclic group having a ring size of 5 to 12 atoms is formed, and T and T ′ are heteroatoms Si, Ge in the cyclic group fused to the cyclopentadienyl ring. , N, P, As, Sb, O, S, Se or Te,
A is a bridge composed of a divalent atom or a divalent group,
Z is a bridge composed of a divalent atom or a divalent group,
E is P, As or Sb;
M ¹ is an element of group 4 of the periodic table,
M ² is an alkali metal, alkaline earth metal or magnesium monohalide moiety;
In the case of a positive divalently charged metal ion, p is 1, or in the case of a positively monovalently charged metal ion or metal ion moiety, p is 2.
The groups X are the same or different, and each is an organic or inorganic group substitutable by a cyclopentadienyl anion,
as well as,
LB is an uncharged Lewis base ligand)
A method for producing an ansa-metallocene complex, characterized by reacting.

The metallocene complex of formula (I) is reacted with a suitable removal reagent in a later reaction step to give a compound of formula (IV)

(Wherein the radicals X ¹ are the same or different and each is methyl or halogen)
The method for producing an ansa-metallocene complex according to claim 1, wherein the ansa-metallocene complex is formed.

R ³ and R ^{3 ′} are the same, and each is a C ₆ -C ₁₀ -aryl group or a C ₇ -C ₁₄ -alkylaryl group,
Z is a 1,3-trimethylene unit;
E is P,
M ¹ is Zr or Hf;
The radicals X are identical and each is chlorine;
as well as,
LB is tetrahydrofuran or the two ligands LB represent dimethoxyethane)
The method for producing an ansa-metallocene complex according to any one of claims 1 and 2.

Formula (III)

In the represented, variable symbols and indices are the transition metal compound, which is a defined as a synonym in claim 1.

A method of using a transition metal compound of formula (III) for the racemoselective preparation of an ansa metallocene complex of formula (I) according to claim 1 or formula (IV) according to claim 2.

Formula (I)

In the represented, variable symbols and indices are ansa metallocene complex, which is a defined as a synonym in claim 1.

A method of using an ansa metallocene complex of formula (I) as an intermediate for the preparation of an ansa metallocene complex of formula (IV).

A method of using an ansa metallocene complex of formula (I) as a component of a catalyst composition for the polymerization of olefinically unsaturated compounds.