A convenient procedure of synthesis of N-carbamoyl-protected propargylic amines substituted with a cyclopropyl group from α-amido sulfones and cyclopropylacetylene is described. The reaction is catalyzed by a chiral BINOL-type zinc complex and provides the corresponding products in good yields and enantioselectivities.
Keywords: BINOL; N-carbamoyl-protected propargylic amines; cyclopropylacetylene; zinc complex; α-amido sulfones.