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Synthesis, characterization and study some of physical properties of novel l,3,4-oxadiazole derivatives

机译：合成，表征和研究新型L，3,4-氧代唑衍生物的物理性质

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In this paper the synthesis of novel 1, 3, 4-oxadiazole derivatives in a good yield (78-86)%, starting with l-((4-(5-mercapto-l,3,4-oxadiazol-2-yl)phenyl)diazenyl)naphthalen-2-ol [Nl] was achieved successfully. The synthesis procedure started by reacting hydrazide derivative and carbon disulfide. Alkylation of thiol group of 1,3,4-oxadiazole [Nl] by sonication using different alkyl halide [methyl iodide, allyl bromide, proprgyl chloride and benzyl chloride] gave compounds [N2-N5]. Another compound [N6] l,l'-(((5,5'-(ethane-l,2-diylbis(sulfanediyl)) bis (l,3,4-oxadiazole-5,2-diyl))bis (4,l-phenylene))bis(diazene-2,l-diyl)) bis (naphthalen-2-ol) was prepared by the alkylation of 1,3,4- oxadiazole derivative with dibromoethane. The UV-Vis spectra of the prepared compounds N1-N5 showed red shifted absorption bands due to the effect of conjugation by the double bond of allyl group. Triple bond of proprgyl group, the aromatic double bond of benzyl group and the alkyl groups in N2-N5 compounds play an important role in changing the fluorescence properties of [Nl]. The physical and the chemical properties of the novel prepared compounds N1-N6 were studied and they were characterized by 1H,13C NMR, FT-IR and Fluorescence techniques.
机译：在本文中新颖1，3，4-恶二唑衍生物的以高收率合成（78-86）％，从1 - （（4-（5-巯基-1,3,4-恶二唑-2-基基）苯基）二氮烯基）萘-2-醇[NL]已成功地实现。的合成步骤开始由酰肼衍生物和二硫化碳反应。巯基-1,3,4-恶二唑的烷基化[NL]通过使用不同的烷基卤[甲基碘，烯丙基溴，氯proprgyl和苄基氯]声处理，得到化合物[N2-N5]。另一化合物[N6] 1,1“ - （（（5,5” - （乙烷-1,2-二基双（硫））二（1,3,4-恶二唑-5,2-二基））二（4- ，1-亚苯基））二（二氮烯2,1二基））双（萘-2-醇）通过的1,3,4-烷基化二唑与二溴乙烷衍生物制备。紫外 - 可见所制备的化合物N1-N5显示出红色的光谱移位吸收带由于缀合的由烯丙基的双键的效果。 proprgyl组的三键，苄基的芳族双键和在N2-N5化合物烷基起到改变[NL]的荧光特性的重要作用。物理和小说的化学性质制备的化合物N1-N6进行了研究，他们进行了表征1H，13C NMR，FT-IR和荧光技术。

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