Aziridines are highly strained three-membered heterocyclic molecules composed of one amine group and two carbon units. They are aza analogs of epoxides. Aziridines are a very important class of synthetic building blocks and intermediates in organic synthesis, which are widely used in organic synthesis, especially in the synthesis of nitrogen-containing natural products. Due to the high ring tension of aziridine, its reactivity is high. Under certain conditions, it can undergo cycloaddition reaction with various dipolar reagents to prepare some new nitrogen-containing heterocyclic compounds.