80231-90-9

Upstream product

• 80231-87-4 benzyl 2-(4-azido-2-oxo-azetidin-1-yl)acetate 
• 80231-88-5 benzyl 4,5,7,8-tetrahydro-4-hydroxy-4-methyl-7-oxo-8aH-azeto<1,2-a>-v-triazolo<3,4-c>pyrimidine-5-carboxylate 
• 80231-89-6 2-(2-Azido-4-oxo-azetidin-1-yl)-3-hydroxy-3-methyl-pent-4-ynoic acid benzyl ester 
• 75666-49-8 benzyl 2-(4'-chloro-2-'oxoazetidin-1'-yl)acetate 
• 75666-48-7 1-Benzyloxycarbonylmethyl-4-methylthioazetidin-2-one 

Relevant academic research and scientific papers

Synthesis of Novel Fused &β-Lactams by Intramolecular 1,3-Dipolar Cycloadditions. Part 1. Tricyclic Triazoles

4-Azido-1-alk-2-ynylazetidin-2-ones (3), (14), and (19) when heated in refluxing toluene gave smooth intramolecular cycloaddition of the azido-group to the acetylene function to afford the corresponding 4H,7aH-azeto-v-triazoloimidazol-6(7H)-