Microwave-Assisted Synthesis and Crystal Structure of Some Novel 1,2,4-Oxadiazol-5-Ylmethyl-1,2,3-Triazoles

Microwave-assisted 1,3-dipolar cycloaddition of 5-azidomethyl 3-aryl substituted 1,2,4-oxadiazoles to electron deficient alkyne; phenyl propiolic acid affords a series of 1,2,3-triazole derivatives carrying 3-p-substitutedphenyl-1,2,4-oxadiazolyl methyl unit. The structures of all the cycloadducts were elucidated by means of IR, NMR (¹H, ¹³C, 2D), MASS (low and high resolution) spectra, X-Ray diffraction data and physical characteristics (melting points and R_f values).