Abstract Four oxorhenium (V) complexes 3a–d equipped with naphtholate-oxazoline based ligands 2a–d have been prepared and characterized by NMR, IR and mass spectroscopy as well as elemental analysis. Ligands 2a–d were prepared in a two-step procedure from commercially available starting materials. Ligands 2a–b and 2c–d are regioisomers to each other regarding the position of the–OH group and oxazoline moiety on the naphthol ring. ...