Tricyclopentadienyl cerium and process for preparing the same

Details Tricyclopentadienyl cerium and process for preparing the same Tricyclopentadienyl cerium and process for preparing the same

1984-11-26

1987-10-27

Terapane, John F.

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

Organic compounds

Rare earth containing

C07F 1700

Patent

active

047031093

ABSTRACT:
A process is provided for preparing tricyclopentadienyl cerium as well as the mono and dicyclopentadienyl cerium intermediates which comprises reacting an alkali metal cyclopentadienide with ceric ammonium nitrate, in solution in an inert organic solvent in a manner to obtain either tricyclopentadienyl cerium or to form in sequence, and stepwise, monocyclopentadienyl cerium dinitrate, dicyclopentadienyl cerium mononitrate, and tricyclopentadienyl cerium, depending upon the order of addition of the reactants.

REFERENCES:
patent: 2818416 (1957-12-01), Brown et al.
patent: 4492655 (1985-01-01), Gradeff et al.
patent: 4511515 (1985-04-01), Thompson
H. Gysling, "Organolanthanides and Organoactinides", Advances in Organometallic Chem., vol. 9, Stone et al., [Ed.], Academic Press, N.Y., 1970, pp. 365-376.
G. B. Deacon et al., "Refutation of the Synthesis of Tetrakis(cyclopentadienyl) Cerium (IV); Polyhedron, vol. 2(9), 1983, p. 969.
Kalsotra et al., J. Organometal. Chem., 1971, 28(1), p. 87.
Wilkinson et al., J. Am. Chem. Soc., 76 (1954), 6210.

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