The application relates to an industrialized preparation method and application of high-purity alpha-amino
nitrile. The application belongs to the technical field of
fine chemical synthesis. The purpose of the application is to solve the technical problems of low yield and purity, high cost and unsuitability for industrialized production of the existing alpha-amino
nitrile synthesis method. The method of the application is as follows: taking
imine as a substrate, alpha-amino
nitrile is synthesized by reacting with
acetone cyanohydrin under the action of an
ionic liquid. The method of the application synthesizes a
nucleophilic addition cyanyl product of a carbon-
nitrogen double bond in one step at
room temperature. By selecting the
ionic liquid and reasonably controlling the proportioning of various substances, the reaction process is greatly accelerated, the high-efficiency synthesis of alpha-amino nitrile is realized, the purity of alpha-amino nitrile is remarkably improved, the substrate adaptability is good, and the method can be widely applied to the synthesis in the fields of medicines and the like in the industry and the academia.