Abstract
A highly organocatalyzed asymmetric Michael addition reaction of pyrazoleamides to β-phthalimidonitroethene has been developed with a chiral bifunctional thiourea-tertiary amine as the catalyst. A wide range of γ-nitro β-amino amides were readily obtained in good to excellent yields with high diastereo- and enantioselectivities (up to 99% yield, 99% ee and >20:1 dr). The large scale experiment and transformation of the product have also been demonstrated.
Published Version
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