Copper(i)/Lewis acid triggered ring-opening coupling reaction of cyclopropenes with nitriles†
Abstract
A ring-opening coupling reaction of D–A cyclopropenes and nitriles is described for the facile synthesis of γ-amino ketones. The co-catalytic system combining copper(I) and boron trifluoride would be inspiring because it disfavors the [3 + 2] cycloaddition to turn the selectivity over the Ritter process.