摘要：【中文】3‑乙酰氨基‑5‑乙酰基呋喃是重要的平台化合物，是制取精细化工品的前体。甲壳素大量存在于自然界，天然可再生，N‑乙酰氨基葡萄糖作为甲壳素的单体，有着广泛的应用前景。本专利以N‑乙酰氨基葡萄糖为原料，离子液体为催化剂，并加入少量金属盐和硼酸为助催化剂，在常压回流条件下以N，N‑二甲基乙酰胺为溶剂高效转化N‑乙酰氨基葡萄糖得到3‑乙酰氨基‑5‑乙酰基呋喃，以一步法实现了该转化过程，且反应体系绿色高效，丰富了甲壳素生物质领域的研究。 【EN】3-acetamido-5-acetylfuran is an important platform compound and is a precursor for preparing fine chemicals. The chitin exists in nature in a large amount, is natural and renewable, and has wide application prospect as N-acetylglucosamine is used as a monomer of the chitin. The method uses N-acetylglucosamine as a raw material, uses ionic liquid as a catalyst, adds a small amount of metal salt and boric acid as a cocatalyst, and efficiently converts the N-acetylglucosamine into 3-acetamido-5-acetylfuran by using N, N-dimethylacetamide as a solvent under the condition of normal pressure reflux, so that the conversion process is realized by a one-step method, and the reaction system is green and efficient, thereby enriching the research in the field of chitin biomass.

摘要：【中文】本发明公开了一种以氯化胆碱催化降解甲壳素单体N‑乙酰氨基葡萄糖的方法，该方法中利用氯化胆碱作为催化剂，其操作方法：在温度180‑200℃下，加入少量氯化物和硼酸为辅助催化剂，以N‑甲基吡咯烷酮为溶剂，常压回流10min，转化N‑乙酰氨基葡萄糖得到3‑乙酰氨基‑5‑乙酰基呋喃。该反应体系方法简单、绿色和环保，所用的原料价格低廉，该方法消除了常规离子液体合成操作复杂的问题。该催化剂易得，可再生，已被证明是可持续的催化剂，它的使用将大大降低对环境的污染，同时为化工生产业务带来重大的经济效益和环境效益。 【EN】The invention discloses a method for catalyzing and degrading chitin monomer N-acetylglucosamine by choline chloride, which uses choline chloride as a catalyst and has the following operation method: under the temperature of 180 ℃ and 200 ℃, adding a small amount of chloride and boric acid as auxiliary catalysts, and refluxing for 10min at normal pressure by using N-methylpyrrolidone as a solvent to convert N-acetylglucosamine to obtain 3-acetamido-5-acetylfuran. The reaction system is simple, green and environment-friendly, the used raw materials are low in price, and the method solves the problem that the conventional ionic liquid synthesis operation is complex. The catalyst is easy to obtain and regenerate, and is proved to be a sustainable catalyst, and the use of the catalyst can greatly reduce the pollution to the environment and bring great economic and environmental benefits for chemical production business.

摘要：【中文】3‑乙酰氨基‑5‑乙酰基呋喃作为生物质基含氮平台化合物可以合成多种重要的含氮精细化学品。本发明公开一种以甲壳素单体N‑乙酰氨基葡萄糖为原料制备3‑乙酰氨基‑5‑乙酰基呋喃的方法，该方法通过以下方式完成：以N‑乙酰氨基葡萄糖为原料，甘氨酸离子液体为催化剂，氯化钙为助催化剂，N，N‑二甲基乙酰胺为溶剂，一定温度下反应一定的时间，得到的产物产率高达52.61％，另外，离子液体重复利用八次后仍表现出良好的催化活性。本发明所用的甲壳素单体廉价易得并且可再生，同时拓宽了甲壳素生物质的应用领域。本反应所用离子液体制备方法简单、原料廉价易得、可循环使用并且绿包环保，具有良好的工业应用前景。 【EN】3-acetamido-5-acetylfuran as a biomass-based nitrogen-containing platform compound can be used for synthesizing various important nitrogen-containing fine chemicals. The invention discloses a method for preparing 3-acetamido-5-acetylfuran by using chitin monomer N-acetylglucosamine as a raw material, which is completed by the following steps: the N-acetylglucosamine is used as a raw material, the glycine ionic liquid is used as a catalyst, the calcium chloride is used as a cocatalyst, the N, N-dimethylacetamide is used as a solvent, the reaction is carried out for a certain time at a certain temperature, the yield of the obtained product is up to 52.61%, and in addition, the ionic liquid still shows good catalytic activity after being repeatedly used for eight times. The chitin monomer used in the invention is cheap, easy to obtain and renewable, and the application field of chitin biomass is widened. The ionic liquid used in the reaction has the advantages of simple preparation method, cheap and easily-obtained raw materials, recyclability, environmental protection and good industrial application prospect.