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Beilstein J. Org. Chem. 2020, 16, 1963–1973, doi:10.3762/bjoc.16.163
Graphical Abstract
Scheme 1: Post-transformations of 2-oxo-aldehyde-derived Ugi adducts 8.
Scheme 2: Synthesis of 2-oxo-aldehyde-derived Ugi adducts.
Figure 1: Molecular representation of the X-ray crystal structure of (S)-12e (slow enantiomer).
Beilstein J. Org. Chem. 2018, 14, 2572–2579, doi:10.3762/bjoc.14.234
Scheme 1: Synthesis of 2-quinolones 2 through intramolecular Friedel–Crafts hydroarylation of N-aryl propargy...
Scheme 2: Strategy towards 2-quinolones 8 bearing a branched substituent on the nitrogen atom.
Figure 1: Scope of the protocol.