Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Reexamination Certificate
2006-12-26
2006-12-26
Solola, Taofiq (Department: 1626)
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C549S525000, C549S531000, C502S172000
Reexamination Certificate
active
07153971
ABSTRACT:
A compound and method for producing an enantiomerically enriched epoxide from an olefin using a chiral ketone and an oxidizing agent is disclosed. In particular, the compound is of the formula: I wherein R1, R2, R3and R4are those defined herein
REFERENCES:
patent: 5902814 (1999-05-01), Gordon et al.
patent: 6107036 (2000-08-01), Heindl et al.
Wang Z. et al., “An Efficient Catalytic Asymmetric Epoxidation Method,” Journal of the American Chemical Society, American Chemical Society, Washington, D.C., U.S., vol. 119, pp. 11224-11235, 1997.
Tian H. et al., “Highly Enantioselective Epoxidation ofcis-Olefins by Chiral Dioxirane,” Journal of the American Chemical Society, American Chemical Society, Washington, D.C., U.S., vol. 122, No. 46, pp. 11551-11552, 2000.
Colorado State University Research Foundation
Faegre & Benson LLP
Solola Taofiq
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