24 Aza-Michael adducts were synthesised in moderate to excellent yields by the addition of 5-substituted uracils to acrylates with ethylamine as a catalyst. Many of the adducts were obtained in almost quantitive yield without column chromatography. The procedure provideded an efficient approach to the synthesis of N-1 uracil adducts using acrylates as acceptors. The structures of the compounds were determined by 1H NMR, 13C NMR, ...
[Baraldi, Pier Giovanni; Romagnoli, Romeo; Guadix, Antonio Entrena; Pineda de las Infantas, Maria Jose; Gallo, Miguel Angel; Espinosa, Antonio; Martinez, Alberto; Bingham, John P.; Hartley, John A. Journal of Medicinal Chemistry, 2002 , vol. 45, # 17 p. 3630 - 3638]
