CuBr for KA2 reaction: en route to propargylic amines bearing a quaternary carbon centerElectronic supplementary information (ESI) available: The experimental procedures, characterization data, and copies of 1H and 13C NMR spectra for all products. See DOI: 10.1039/c3cc45301d

A highly efficient CuBr-catalyzed coupling of ketones, amines and alkynes (KA 2 ) forming propargylic amines bearing a quaternary carbon center with the broadest scope so far has been developed. A highly efficient CuBr-catalyzed coupling of ketones, amines and alkynes (KA 2 ) forming propargylic amines bearing a quaternary carbon center with the broadest scope so far has been developed.