Synthesis and Characterization of Novel Stilbene Derivatives with 1,3,4-Oxadiazole Unit
作者:Dao-Hang He、Yong-Chuang Zhu、Zhuo-Ru Yang、Ai-Xi Hu
DOI:10.1002/jccs.200900039
日期:2009.4
Four novelstilbenederivatives containing 1,3,4‐oxadiazole unit have been synthesized in four steps with overall yields (27∼35%). The synthetic route involved one‐step installation of 2,5‐di‐p‐tolyl‐1,3,4‐oxadiazol via the direct coupling of p‐toluic acid with hydrazine hydrate promoted by PPA, benzylic bromination, conventional phosphonate formation, and Wittig‐Horner olefination.