Synthesis of 6-aryl-6-alkyl fulvenes, 6-aryl-6-alkenyl...

Chemistry of hydrocarbon compounds – Alicyclic compound synthesis – From nonhydrocarbon

Reexamination Certificate

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C585S359000

Reexamination Certificate

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07420097

ABSTRACT:
The present invention provides a method of making fulvenes, particularly 6-aryl-6-alkylfulvenes, 6-aryl-6-alkenylfulvenes, and related compounds, by combining alkyl- or alkenyl-arylketones with magnesium cyclopentadienyl reagents in nonprotic, including ethereal, solvents. The use of these compounds in preparing bis(cyclopentadienyl)methanes and related compounds, and ansa-metallocenes, is disclosed.

REFERENCES:
patent: 3381017 (1968-04-01), Waugh
patent: 4611024 (1986-09-01), Wolfe
patent: 5001176 (1991-03-01), Nakazima
patent: 5015679 (1991-05-01), Matumura
patent: 5179063 (1993-01-01), Harris et al.
patent: 5744666 (1998-04-01), Welch et al.
patent: 6025512 (2000-02-01), Crowther et al.
patent: 6156845 (2000-12-01), Saito et al.
patent: 6175027 (2001-01-01), Sullivan et al.
patent: 6187880 (2001-02-01), Welch et al.
patent: 6231804 (2001-05-01), Yamauchi et al.
patent: 6291382 (2001-09-01), Koppl et al.
patent: 6313225 (2001-11-01), Saito et al.
patent: 6534665 (2003-03-01), Nunez et al.
patent: 2005/0080296 (2005-04-01), Park et al.
Day, J. H.; The Fulvenes, Mar. 16, 1953, 167-189, Department of Chemistry, Ohio University, Athens, Ohio, USA.
Bergmann, E. D., The Fulvenes, Progress in Organic Chemistry. 1955, pp. 81-171, 3. Academic Press Inc., New York. USA.
Gilman, H.; Gorisch, R. D.; Reactions of Lithium with Some Aromatic Hydrocarbons in Tetrahydrofuran, Apr. 1958, 550-551, vol. 23, Chemistry Department of Iowa State College, Arnes, Iowa, USA.
Yates, P., Fulvenes, Advances in Alicyclic Chemistry, 1968, pp. 60-184, vol. 2, Academic Press, New York, USA.
Stone, K. J.; Little, R. D.; An Exceptionally Simple and Efficient Method for the Preparation of a Wide Variety of Fulvenes, The Journal of Organic Chemistry, Jun. 1, 1984, 1849-1853, vol. 49-11, American Chemical Society.
Li, J. H.; Liu, J. T.; Jiao, L. J.; Zhang, X. Q.; Ma, Y. D.; Zhang, N.; Reaction of Substituted Cyclopentadienyl-Magnesium-Chloride with Carbonyl Compound (I): Research in Chinese Universities, 1992, 370-376; vol. 8-4, Shandong Province. China.
Xiao, Ya-Ping, et al., “One Step Synthesis of Dicyclopentadienylmagnesium and its Reaction . . . ” Youji Huaxue/Organic Chemistry, vol. 16, No. 5 (1996) pp. 450-452.
Fierro, R., et al. “Synthesis and Characterization of New One-Carbon-Britdged . . . ” J of Organo. Chem., Elsevier-Sequola SA Lausanne, CH, vol. 485, No. 1 (1995) pp. 11-17.
Alt, H G. et al., “C1-Bridged Fluorenylidene Cyctopentadienylidene Complexes . . . ”, J of Organo. Chem. Elsevier-Sequoia SA Lausanne, CH, vol. 568, No. 1-2 (1998), pp. 87-112.
Search Report for International Application No. PCT/US2005/0022746 dated Dec. 19, 2005.
Youji Huaxue, Organic Chemistry, 1996, vol. 16, pp. 450-452, Research Bulletin.

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