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发明授权
CN107827823B 4,5-二溴咪唑的制备方法 有权

4,5-二溴咪唑的制备方法
摘要：
本发明公开了一种4,5‑二溴咪唑的制备方法，属于精细化工产品制备领域。4,5‑二溴咪唑的制备方法，该方法是使2,4,5‑三溴咪唑在甲醇中与三苯基膦反应制备4,5‑二溴咪唑。本发明以三苯基膦作为还原剂，将2,4,5‑三溴咪唑还原成4,5‑二溴咪唑。上述方法可一步将2,4,5‑三溴咪唑直接还原成4,5‑二溴咪唑，减少了反应步骤，并同时减少了废物的生成，有益于降低生产成本，减少环境污染。
摘要（英）：

The invention discloses a method for preparing 4,5-dibromo imidazole and belongs to the field of fine chemical product preparation. The method for preparing 4,5-dibromo imidazole comprises a step of enabling 2,4,5-tribromo imidazole to react with triphenylphosphine, so as to generate 4,5-dibromo imidazole. By adopting the method, triphenylphosphine is adopted as a reducing agent for reducing 2,4,5-tribromo imidazole into 4,5-dibromo imidazole. By adopting the method, 2,4,5-tribromo imidazole can be directly reduced into 4,5-dibromo imidazole at one step, reaction steps are reduced, meanwhile wastes are reduced, the production cost is reduced, and the environmental pollution is reduced.

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