Preparation of titanium(II) or zirconium(II) complexes

Details Preparation of titanium(II) or zirconium(II) complexes Preparation of titanium(II) or zirconium(II) complexes

1999-09-28

2000-07-18

Nazario-Gonzalez, Porfirio

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

Organic compounds

Heavy metal containing

556 7, 556 12, 556 20, 556 52, 502103, 502117, 526160, 526943, C07F 1700, C07F 700

Patent

active

060909625

ABSTRACT:
Titanium and zirconium complexes comprising one or more, cyclic, delocalized .pi.-bonded ligand groups wherein the metal of said complexes is in the +2 formal oxidation state are prepared in high yield and purity by reaction of the corresponding titanium or zirconium halides in the +3 or +4 oxidation state with a di(C.sub.1-20 alkyl) magnesium reagent. The complexes are used as catalyst components for olefin polymerization catalysts.

REFERENCES:
patent: 5470993 (1995-11-01), Devore et al.
patent: 5486632 (1996-01-01), Devore et al.
patent: 5616748 (1997-04-01), Newman

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