Abstract A new and highly flexible procedure for the synthesis of 2-arylethylamine derivatives is described. By the new procedure, the target compounds can be synthesized with high diversity in three steps from aryl halides, terminal alkynes, and primary amines. The reaction sequence starts with a palladium-catalyzed coupling of an aryl halide and a terminal alkyne (Sonogashira coupling). A subsequent Cp 2 TiMe 2-catalyzed ...