The invention discloses a
continuous flow synthesis method of chloracetyl-L-
glutamine and glycyl-
glutamine, and belongs to the technical field of
organic synthesis. According to the invention, molecular-level efficient mixing and heat conduction of materials are realized, so that the reaction materials are fully mixed, the reaction is more sufficient, the conversion rate is further improved, and the
process operation is safe and controllable. The micro-channel reactor has the advantages that equipment is relatively small, the reaction is
continuous flow, the feed flux is large, the occupied area of the equipment is reduced, and the productivity is improved. Through a micro-channel
continuous flow method,
ammonia water or
ammonia gas is directly adopted without adding
ammonium bicarbonate, the problem that the
ammonia water cannot be used mechanically is solved, the recycled ammonia water treated after reaction can be directly used mechanically, three wastes are thoroughly solved, and the production process is green and environment-friendly. The glycyl-L-
glutamine is totally synthesized through micro-channel continuous flow, the product purity HPLC (
High Performance Liquid Chromatography) of the glycyl-L-glutamine reaches 99.5% or above, and the single
impurity content is less than 0.1%.