Switchable Assembly of Substituted Pyrimidines and 2H-imidazoles via Cu(I)-catalysed Ring Expansion of 2-Meoxyl-2H-azirines

The unprecedented switchable synthesis of substituted pyrimidines and 2H-imidazoles via Cu(I)-catalyzed ring expansion of 2-meoxyl-2H-azirines is described. This protocol features broad substrate scope and allows rapid assembly of amides. Notably,...