Journal of Catalysis, Vol.377, 507-510, 2019
Copper-catalyzed intra- and intermolecular carbonylative transformation of remote C(sp(3))-H bonds in N-fluoro-sulfonamides
Herein, we developed an interesting copper-catalyzed carbonylation approach for the transformations of the remote C(sp(3))-H bonds in N-fluoro-sulfonamides. The corresponding delta-lactams and esters were produced selectively. Notably, N-fluoro-carboxamide and medicine Celecoxib-derived substrate can also be transformed under the same conditions. (C) 2019 Elsevier Inc. All rights reserved.
Keywords:1,5-hydrogen atom transfer;Carbonylation;Radical process;Lactams synthesis;N-fluoro-sulfonamides;Copper catalyst