A simple and convenient copper-catalyzed hydroamination of arylacetylenes with secondary amines has been performed giving a simple access to aliphatic amines after reduction of the hydroaminated products (E-enamines).
tertiary 2‐phenylethyl, 2‐(1‐naphthyl)ethyl and 2‐(2‐naphthyl)ethylamines were synthesized and their binding affinities for dopamine D1, D2 and serotonin 5‐HT1A receptors evaluated in radioligand binding assays. All compounds were inactive in D1 dopamine radioligand binding assay. The 2‐(1‐naphthyl)ethyl analogues expressed a low but significant binding affinity for the D2 and moderate one for the 5‐HT1A