Exploiting the Nucleophilicity of the Nitrogen Atom of Imidazoles: One-Pot Three-Component Synthesis of Imidazo-Pyrazines
作者:Ubaldina Galli、Rejdia Hysenlika、Fiorella Meneghetti、Erika Del Grosso、Sveva Pelliccia、Ettore Novellino、Mariateresa Giustiniano、Gian Cesare Tron
DOI:10.3390/molecules24101959
日期:——
novel one-pot multicomponent reaction to synthesize substituted imidazopyrazines is described. In brief, 1H-(imidazol-5-yl)-N-substituted methanamines react with aldehydes and isocyanides in methanol at room temperature to give imidazopyrazine derivatives in excellent yields. The imidazole nitrogen atom was able to intercept the nascent nitrilium ion, channeling the reaction toward to the sole formation