Synthesis, Characterization, and Optical Properties of Novel 2,5-Bis[4-(2-(-arylvinyl)phenyl]-1,3,4-oxadiazoles

Authors : DaoHang HE, YongChuang ZHU, ZhuoRu YANG

Pages : 393-397

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Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Six novel 2,5-bis[4-insert ignore into journalissuearticles values(2-arylvinyl);phenyl]-1,3,4-oxadiazoles were synthesized by introducing 1,3,4-oxadiazole moiety into the stilbene skeleton. The synthesis route included the cyclization of p-toluic acid and hydrazine hydrate catalyzed by polyphosphoric acid insert ignore into journalissuearticles values(PPA);, bromination of 1,3-dibromo-5,5-dimethylhydantoin insert ignore into journalissuearticles values(DBDMH);, esterification, and the Wittig-Horner reaction. All the title compounds were characterized by 1H-NMR, MS, and elemental analysis. UV-Vis absorption and fluorescence emission spectra in THF solution were investigated; the compounds may have potential for use in organic optical materials.
Keywords : Stilbene, 1, 3, 4 oxadiazole, synthesis