Process for preparing a carbon-bridged biscyclopentadiene compou

Details Process for preparing a carbon-bridged biscyclopentadiene compou Process for preparing a carbon-bridged biscyclopentadiene compou

1996-06-28

1997-09-23

Shaver, Paul F.

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

Organic compounds

Heavy metal containing

585317, 585318, 585360, 585361, 585428, 585431, C07F 1700

Patent

active

056706812

ABSTRACT:
The present invention relates to a process for preparing a carbon-bridged biscyclopentadiene compound by reacting one or two cyclopentadiene compounds LH with a carbonyl compound in the presence of at least one base and at least one phase transfer catalyst.

REFERENCES:
patent: 4892851 (1990-01-01), Ewen et al.
patent: 5420320 (1995-05-01), Zenk et al.
patent: 5474716 (1995-12-01), Lisowsky
patent: 5569746 (1996-10-01), Lee et al.
patent: 5578741 (1996-11-01), Frey et al.
patent: 5585508 (1996-12-01), Kuber et al.
Halterman, "Synthesis and Applications of Chiral Cyclopentadienylmetal Complexes", Chem. Rev. 1992, vol. 92, No. 5 pp. 965-994.
Ilya E. Nifant'ev et al. "A New Convenient Route to Substituted 2,2-Biscyclopentdienylpropanes" Chem. Research (S), 1992, p. 162.

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