Application of Bicyclization Reaction in the Construction of Five-and Six-Membered Heterocyclic Skeletons
The application of bicyclization reactions in the construction of five-and six-membered nitro-gen heterocycles,oxygen heterocycles,silicon heterocycles,nitrogen oxygen heterocycles,and oxygen sulfur heterocycle skeletons reported in recent literature was analyzed.The reactions involved have the ad-vantages such as cheap catalysts,suitable temperatures,and excellent yields,making them a new route for the synthesis of five membered and six membered heterocycle derivatives.