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  • Title: 4-Aryl-2-quinolones from 3,3-diarylacrylamides through intramolecular copper-catalyzed C-H functionalization/C-N bond formation.
    Author: Berrino R, Cacchi S, Fabrizi G, Goggiamani A.
    Journal: J Org Chem; 2012 Mar 02; 77(5):2537-42. PubMed ID: 22283237.
    Abstract:
    Free NH 3,3-diarylacrylamides are cyclized to substituted 2-quinolones in the presence of CuI, PPh(3), and KO-t-Bu in o-xylene at 100 °C. The reaction proceeds through a C-H functionalization/C-N bond formation process. With unsymmetrical 3,3-diarylacrylamides, high selectivity is observed using substrates where the aromatic ring trans to the amide group bears o-methyl, -chloro, or -bromo substituents.
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