would permit the condensation of the i ns itu generated o-QMs with nucleophiles other than phenols, we utilized urea, amides, and semicarbazide hydrochloride (to work as nucleophiles) to produce corresponding amidoalkyl and semicarbazonoalkyl naphthols. 12 In the present study, we report our results on a new type of multicomponent reaction where five molecules react to form a piperidine ring. Thus, aromati