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The chiral RhI-diene-catalyzed asymmetric three-component reaction of aryldiazoacetates, aromatic amines, and β-nitroacrylates was achieved to obtain γ-nitro-α-amino-succinates in good yields and with high diastereo- and enantioselectivity. This reaction is proposed to proceed through the enantioselective trapping of RhI-associated ammonium ylides by nitroacrylates. This new transformation represents the first example of RhI-carbene-induced ylide transformation. [ABSTRACT FROM AUTHOR]

Trapped: A Michael‐aldol‐type cascade reaction including the trapping of an oxonium ylide through a delayed proton shift leads to the formation of multiple stereocenters in a mild one‐pot synthesis. Enantiomerically pure indanol derivatives with four stereocenters and a stereogenic quaternary carbon center were easily obtained through this method in moderate to good yields. [ABSTRACT FROM AUTHOR]