Process for preparing 1 3-disubstituted cyclopentadienyl ligands

Details Process for preparing 1 3-disubstituted cyclopentadienyl ligands Process for preparing 1 3-disubstituted cyclopentadienyl ligands

1996-01-22

1999-01-05

Owens, Amelia

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

Organic compounds

Heavy metal containing

556 53, 556 58, 556140, 585350, 585379, C07F 1900

Patent

active

058565418

ABSTRACT:
The invention relates to an improved process which, starting from 2-cyclopenten-1-ones substituted in the 3-position, gives a high yields of 1,3-dialkylcyclopentadienes which can be directly metallated and reacted to give the corresponding 1,3-dialkylcyclopentadienyl-transition metal complexes.

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Houben-Weyl, vol. XIII/2a "Metallorganische Vergindungen Be, Mg, Ca, Zn, Cd", p. 47, Organomagnesiumsbergindugen-Georg Thieme Verlag Stuttgart, 1973.
Cadin et al. "Chemistry of oranozirconium and-hafnium compounds", Ellis Horwood Limited (1986).
Wailes et al. "Organometallic Chemistry of Titanium, zirconium, and Hafnium", Academic Press New York and London (1974).
Gmelin, Handbuch der anorganischen chemie, Supplement to 8th edition, vol. 10 and 11, "Zirconiumund Hafnium organische Vervindugen", p. 26ff, Verlag Chemie Weinheim (1973).
(1991) J. Organomet. Chem., 417:9-27.

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