New Synthesis of Nitrogen Heterocycles through Amide-Directed Hydrocarbonylation of Alkenamides Catalyzed by Rhodium Complexes

Article abstract of DOI:10.1021/jo00006a013

Amide-directed hydrocarbonylation of 3-butenamide (1) catalyzed by rhodium complexes such as RhCl(PPh3)3, RhCl(CO)(PPh3)2, HRh(CO)(PPh3)3, and Rh4(CO)12 gives a mixture of 3,4-dihydro-2-pyridone (2), 4-methyl-3-pyrrolin-2-one (3), and a unique heterodimer