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发明授权
CN106188100B 2, 6-二（2,4, 6-三氨基-5-嘧啶偶氮）苯并（1, 2-d; 4, 5-d）双噻唑的制备方法和应用 失效 - 权利终止

2, 6-二（2,4, 6-三氨基-5-嘧啶偶氮）苯并（1, 2-d; 4, 5-d）双噻唑的制备方法和应用
摘要：
本发明属于一种双偶氮化合物领域，可解决现有技术中检测重金属离子试剂的灵敏度和选择性不够理想的问题，首先通过4,4´‑对苯二胺、冰乙酸和硫氰酸钾等原料制备2,6‑二氨基苯并（1,2‑d;4,5‑d）双噻唑，然后通过NaNO2等原料制备2,2´‑[苯并（1,2‑d;4,5‑d）双噻唑腙基]双丙二腈，最后通过硝酸胍和NaOH的乙醇溶液，和第二步反应的产物的乙醇溶液反应，得2,6‑二（2,4,6‑三氨基‑5‑嘧啶偶氮）苯并（1,2‑d;4,5‑d）双噻唑。本发明对于Cu2+浓度的检测具有响应速度快、选择性好、灵敏度高、测试体系稳定的特点。
摘要（英）：

The invention belongs to the field of bis-azo compounds. The problem that in the prior art, the detection of the sensitivity and selectivity of heavy metal ion reagents is not ideal enough can be solved. Firstly, 2,6-diamidobenzo(1,2-d; 4,5-d)bithiazole is prepared from 4,4'-p-phenylenediamine, glacial acetic acid, potassium rhodanide and the like; secondly, 2,2'-[benzo(1,2-d; 4,5-d)bithiazole hydrazone]bimalononitrile is prepared from NaNO2 and other raw materials; finally, 2,6-bis(2,4,6-triamino-5-pyrinideazo)benzo(1,2-d; 4,5-d)bithiazole is obtained after guanidine nitrate and an NaOH ethanol solution react with an ethanol solution of the product obtained through the reaction in the second step. A method for detecting the Cu2+ concentration has the advantages of being rapid in response speed, high in selectivity, high in sensitivity and stable in testing system.

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