A 14-membered azacrown ether, namely, 23,25-diphenyl7-tosyl-4,10-dioxa-7-aza-2(2,6)-piperidina-1(2,1),3(1,2)- dinaphthalenacyclodecaphan-24-one, was successfully synthesized in a short period of time and with a reasonable yield using ultrasonic vibration. The obtained compound containing a polyether chain, an N-tosyl group and a piperidone ring seems promising biologically active substance and ligand for chelating with metal ions