2-甲基-5-(4-硝基苯基)-1,3,4-噁二唑的合成研究

Synthesis of 2-methyl-5-(4-nitrophenyl)-1,3,4-oxadiaz-ole

目的:1,3,4-噁二唑具有重要的生物活性,被广泛应用于医药,农药,发光材料等方面。本文主要研究了1,3,4-噁二唑的一种衍生物2-甲基-5-(4-硝基苯基)-1,3,4-噁二唑的合成方法,以及对其结构的确定。方法:根据查阅大量文献资料,合成了一条新的合成路线,及以对甲基苯甲酸为原料与二氯亚砜反应生成对硝基苯甲酰氯,此生成物再与甲醇、水合肼、原乙酸三乙酯反应生成2-甲基-5-(4-硝基苯基)-1,3,4-噁二唑。结论:本路线经过傅克酰化反应,加成取代反应,缩合反应等得到最终产物。并经过了HNMR等对其结构表征。

Objective： t,3,4-oxadiazole has important biological activity, are widely used in terms of medicine, pesticides, luminescent materials. This paper studies 1,3,4-oxadiazole, a derivative of 2-methyl-5-（4-nitrophenyl）-1,3,4-oxadiazole synthesis method, as well as its determination of structures. Methods： According consult massive literature, synthesized a new synthetic route to methyl benzoate and thionyl chloride as raw material reacts with p-nitrobenzoyl chloride, and then with this product, methanol, hydrazine hydrate, the original reaction of triethyl 2-methyl-5-（4-nitrophenyl） -1,3,4-oxadiazole.Conclusion： The route passes Friedel-Crafis acylation, addition substitution reaction, a condensation reaction to give the final product. And after its structural characterization HNMR like.