Preparation of metallocenes

Details Preparation of metallocenes Preparation of metallocenes

1993-08-16

1995-10-03

Nazario-Gonzales, Porfirio

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

Organic compounds

Radioactive metal containing

556 43, 556 47, 556 52, 556 58, 556136, 556137, 556140, 534 15, C07F 500, C07F 900, C07F 1300, C07F 1700

Patent

active

054553334

ABSTRACT:
Metallocenes which are useful as olefin polymerization catalysts are prepared by reacting a compound of a metal of the group 4 to 10, lanthanide or actinide series of the Periodic Table of the Elements with a magnesium halide salt of a cyclopentadienyl containing ligand in the presence of an organic halide so as to form the metallocene while simultaneously raising the oxidation state of the metal.

REFERENCES:
patent: 4808561 (1989-02-01), Welborn, Jr.
patent: 5189192 (1993-02-01), LaPoint et al.
patent: 5200537 (1993-04-01), Lee et al.
J. Chem Soc., Commun., 1990, pp. 1470-1471, Luinstra et al., Lead Dichloride: a Mild Reagent for the Oxidation of Tervalent Titanium Compounds (.eta..sup.5 -C.sub.5 Me.sub.5).sub.2 TiR to Monochloride derivatives (.eta..sup.5 -C.sub.5 Me.sub.5).sub.2 TiR(Cl).
Inorganica Chimica Acta, 180 (1991) 153-160, pp. 153-160, Szymoniak, et al., Synthesis of bent titanocene metalloligands with the (diphenylphosphino)tetramethylcyclopentadienyl moiety. X-ray structure of [(.eta..sup.5 -C.sub.5 Me.sub.4 PPh.sub.2).sub.2 TiCl.sub.2 ]Mo(Co).sub.4.
Pearson, A. J., Metallo-organic Chemistry, John Wiley and Sons, New York, 1985, pp. 114-116.
Gambarotta et al., Inorg. Chem., vol. 23, No. 12, pp. 1739-1747 (1984).

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