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An efficient synthesis of amidoalkyl naphthols from the reaction of β-naphthol and various aromatic aldehydes and amides using ZrOCl2·8H2O, an environmentally friendly catalyst under a thermal solvent-free green procedure is described. This simple protocol offers advantages such as shorter reaction times, simple work-up and excellent yield. The catalyst ZrOCl2·8H2O can be reused. The reusability of the catalyst has been studied for the synthesis of various amidoalkyl naphthols.