Abstract Several tertiary 2-phenylethyl, 2-(1-naphthyl) ethyl and 2-(2-naphthyl) ethyl amines were synthesized and their binding affinities for dopamine D 1, D 2 and serotonin 5-HT 1A receptors evaluated in radioligand binding assays. All compounds were inactive in D 1 dopamine radioligand binding assay. The 2-(1-naphthyl) ethyl analogues expressed a low but significant binding affinity for the D 2 and moderate one for the 5-HT 1A receptor ...