Preparation method of 2-chloro-5-chloromethylpyridine

• Main Authors: GU JING, YU JIALIN, DU YOUXING, HE LI
• Format: Patent
• Language: Chinese; English
• Published: 24.05.2017
• Subjects: CHEMISTRY; HETEROCYCLIC COMPOUNDS; METALLURGY; ORGANIC CHEMISTRY

The invention relates to the field of chemical synthesis, particularly a preparation method of 2-chloro-5-chloromethylpyridine. The preparation method comprises the following step: carrying out cyclization reaction on 2-chloro-2-chloromethyl-4-cyanobutyraldehyde and cyanuric chloride to obtain the 2-chloro-5-chloromethylpyridine. The preparation method provided by the invention has the advantages of low production cost, high product quality, high yield and the like. Besides, the byproduct sodium cyanurate of the preparation method can be treated to prepare thetrichloroisocyanuric acid superior product, thereby further enhancing the economic benefits. 本发明涉及化学合成领域，特别是涉及种2-氯-5-氯甲基吡啶的制备方法。本发明提供种2-氯-5-氯甲基吡啶的制备方法，包括如下步骤：将2-氯-2-氯甲基-4-氰基丁醛与三聚氯氰进行环合反应，制备获得2-氯-5-氯甲基吡啶。本发明的所提供的2-氯-5-氯甲基吡啶的制备方法具有生产成本低、产品品质高、收率高等优点。此外，制备方法的副产品三聚氰酸钠经处理后可制备三氯异氰尿酸优等品，进步提升了经济效益。