Production of alkali metal cyclopentadienylide and production of

Details Production of alkali metal cyclopentadienylide and production of Production of alkali metal cyclopentadienylide and production of

1998-12-11

2000-04-04

Nazario-Gonzalez, Porfirio

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

Organic compounds

Heavy metal containing

589350, 589380, 526160, 526943, 987 2, 502103, 502117, C07F 1700, C07F 700

Patent

active

060463465

ABSTRACT:
A process for producing an alkali metal cyclopentadienylide is disclosed which comprises reacting in a solvent an alkali metal hydride with a disubstituted or trisubstituted 1,3-cyclopentadiene. Further, a process for producing a dihalobis(.eta.-substituted-cyclopentadienyl)zirconium is disclosed which comprises reacting a zirconium halide with the above alkali metal cyclopentadienylide. The former process enables performing the reaction between the disubstituted or trisubstituted 1,3-cyclopentadiene and the alkali metal hydride at an easily controllable temperature of room temperature to about 150.degree. C. and also enables obtaining the alkali metal cyclopentadienylide in high yield. The latter process enables obtaining the dihalobis(.eta.-substituted-cyclopentadienyl)zirconium in high yield.

REFERENCES:
patent: 4874880 (1989-10-01), Miya et al.
patent: 5585509 (1996-12-01), Langhauser et al.
Patent Abstracts of Japan --Publication No. 63222177A publication date Sep. 16, 1988.
Organic Synthesis, Collective vol. 5, pp. 1088-1091.
"Solution Structure and Dynamics of Binuclear Dinitrogen . . . " Journal of the American Chemical Society, 100, May 10, 1978 pp. 3078-3083.
"Cyclopentadienyl Metal Carbonyls and Some Derivatives", Inorganic Synthesis vol. 7 (1963) pp. 99-103.

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