Process for producing β-aminoketone and catalyst therefor

Details Process for producing β-aminoketone and catalyst therefor Process for producing β-aminoketone and catalyst therefor

2007-01-16

2007-01-16

Davis, Brian (Department: 1621)

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

Organic compounds

Amino nitrogen containing

C564S471000

Reexamination Certificate

active

10507027

ABSTRACT:
A conjugate addition reaction between an α,β-unsaturated ketone compound and a carbamate compound is carried out to synthesize a β-aminoketone, a salt or a hydrate salt of a transition metal of Groups 7 to 11 of the Periodic Table of Elements being present in the reaction system as the catalyst. The novel method and the catalyst are capable of synthesizing the β-aminoketone by the Aza-Michael reaction with high yield and efficiency.

REFERENCES:
patent: 4410526 (1983-10-01), Muchowski
Greenwood et al., Chemistry of the Elements, Pergamon Press Ltd., Oxford, 1985, p. 1337-1338.
Wabnitz, T.C. et al., “Convenient synthesis of Cbz-protected β-amino ketones by a copper-catalyzed conjugate addition reaction”, Tetrahedron Letters, vol. 43, No. 21 (2002), pp. 3891-3894.
Gaunt, M. J. et al., “Derailing the Wacker Oxidation: Development of a Palladium-Catalyzed Amidation Reaction”, Organic Letters, vol. 3, No. 1 (2001), pp. 25-28.

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