synthetic route for commercial preparation of cinacalcet hydrochloride (1), a calcimimetic agent and calcium-sensing receptor antagonist, is described. Our synthetic approach involves the preparation of cinacalcet using C–C bond formation catalyzed by iron acetylacetonate/NMP complex with arylGrignardreagent benzotrifluoride magnesium bromide (8) and alkenyl halide N-chloropropene naphthylethylamine