Cu(I)-Catalyzed Asymmetric Mannich Reaction of Glycine Schiff Bases to Ketimines
A copper-catalyzed asymmetric Mannich reaction between glycine Schiff bases and ketimines has been developed. This method afforded 2-oxindole-based chiral syn-α,β-diamino acid derivatives in high yields (89–99%) with good to excellent diastereoselectivities (≤98:2 dr) and excellent enantioselectivit...
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Veröffentlicht in: | Journal of organic chemistry 2019-09, Vol.84 (18), p.11639-11648 |
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Hauptverfasser: | , , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | A copper-catalyzed asymmetric Mannich reaction between glycine Schiff bases and ketimines has been developed. This method afforded 2-oxindole-based chiral syn-α,β-diamino acid derivatives in high yields (89–99%) with good to excellent diastereoselectivities (≤98:2 dr) and excellent enantioselectivities (95–99% ee). |
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ISSN: | 0022-3263 1520-6904 |
DOI: | 10.1021/acs.joc.9b01566 |