Abstract

Disclosed by the present application is a method for autocatalytic preparation of 2,5-furandicarboxaldehyde oxime. The method for the autocatalytic preparation of the 2,5-furandicarboxaldehyde oxime comprises: reacting 2,5-furandicarboxaldehyde with an oxime agent using an acid to produce 2,5-furandicarboxaldehyde oxime as a catalyst, and then continuing the reaction of the remaining 2,5-furandicarboxaldehyde and the oxime agent in the presence of the catalyst to produce the 2,5-furandicarboxaldehyde oxime. The present application uses acid-triggered reaction, and finishes a reaction by means of the self-catalysis of the 2,5-furandicarboxaldehyde oxime, thereby avoiding the use of excessive alkali auxiliaries, and reducing the emission of pollutants. The conversion rate of the 2,5-furandicarboxaldehyde reaches 100%, the selectivity and yield of the 2,5-furandicarboxaldehyde oxime reaches more than 99%, and the reaction conditions are mild. In addition, the method is simple and easy to operate, low in production cost, and suitable for industrial production.

IPC Classes  ?

• C07C 249/08 - Preparation of compounds containing nitrogen atoms doubly-bound to a carbon skeleton of oximes by reaction of hydroxylamines with carbonyl compounds
• C07C 251/54 - Oximes having oxygen atoms of oxyimino groups bound to carbon atoms of substituted hydrocarbon radicals of hydrocarbon radicals substituted by singly-bound oxygen atoms
• C07C 251/42 - Oximes with oxygen atoms of oxyimino groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with the carbon atom of at least one of the oxyimino groups bound to a carbon atom of a ring other than a six-membered aromatic ring
• C07C 251/44 - Oximes with oxygen atoms of oxyimino groups bound to hydrogen atoms or to carbon atoms of unsubstituted hydrocarbon radicals with the carbon atom of at least one of the oxyimino groups being part of a ring other than a six-membered aromatic ring