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发明公开
CN109134454A 一种联噻唑类偶氮化合物的制备方法和应用 有权

一种联噻唑类偶氮化合物的制备方法和应用
摘要：
本发明提供了一种联噻唑类偶氮化合物的制备方法和应用。本发明的制备方法包括：2,6‑二氨基苯并(1,2‑d；4,5‑d)双噻唑的制备；及2,2′‑[苯并(1,2‑d；4,5‑d)双噻唑腙基]双丙二腈制备；将水合肼滴加到2,2′‑[苯并(1,2‑d；4,5‑d)双噻唑腙基]双丙二腈溶于乙醇中的溶液中，回流、过滤、沉淀、水洗及重结晶，得到本发明提供的紫褐色固体2,2′‑二(1‑苯基‑3,5‑二氨基‑4‑吡唑偶氮)‑4,4′‑联噻唑。本发明具有试剂制备方法简单、易合成、试剂稳定的特点。在表面活性剂存在下，可用于在酸性介质中Co2+的光度分析检测。具有对于Co2+的检测具选择性好、灵敏度高、测试体系稳定的特点。
摘要（英）：

The invention provides a preparation method and application of a bithiazole azo compound. The preparation method includes: preparing 2, 6-diaminobenzene(1, 2-d; 4, 5-d)bithiazole; preparing 2, 2'-[benzo(1, 2-d; 4, 5-d)bithiazole hydrazone]bimalononitrile; dropwise adding hydrazine hydrate into a solution obtained by dissolving 2, 2'-[benzo(1, 2-d; 4, 5-d)bithiazole hydrazone]bimalononitrile into alcohole, back-flowing, filtering, precipitating, washing, and recrystallizing to obtain purple brown solid 2, 2'-bi(1-phenyl-3, 5-diamino-4-pyrazole azo)-4, 4'-bithiazole. The preparation method has the advantages that a reagent is simple in preparation method, easy to synthesize and stable. At the presence of a surfactant, the compound can be used for luminosity analysis and detection of Co2+ inacidic media and has the advantages of high selectivity, high sensitivity and stable testing system for Co2+ detection.

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