Optically Active Amine Derivatives: Ruthenium-Catalyzed Enantioselective Hydrogenation of Enamides

Abstract
Enamides have first been prepared by reaction of 5-methoxy-3-chromanone and 2-tetralone with primary amides under acidic conditions. The enantioselectivities observed in the asymmetric hydrogenation of these enamides using ruthenium catalysts strongly depended on both the starting ketone and the nature of the amide group.

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