Department of Chemistry, Ferdowsi University of Mashhad, P.O. Box 91775-1436, Mashhad, Iran
Abstract:
13-Crown-4,16-crown-5,dibenzo-12-crown-4 and dibenzo-14-crown-4 were synthesized by a one-pot microwave-assisted procedure in good yields.Irradiation of diols and dichlorides in the presence of sodium hydroxide in DMSO gave title crown ethers presumably within a template effect.