The highly efficient α- and vicinal bis-addition of cyclic imides to methyl propiolate in high yields and β-addition of these imides to α-imidoacrylates in quantitative yields is reported. These reactions offer a simple metal-free method for a gram-scale preparation of practically useful α-imidoacrylates and vicinal bisimides under mild conditions with high atom economy and selectivity.
报告了环状
亚胺与甲基
丙炔酸酯的高效α-加成和邻位双加成,以及这些
亚胺与α-
亚胺基
丙烯酸酯的β-加成,均以高收率和定量收率进行。这些反应提供了一种简单的无
金属方法,可在温和条件下以高原子经济性和选择性大规模制备具有实际应用价值的α-
亚胺基
丙烯酸酯和邻位双
亚胺。