Proximity-Assisted Cycloaddition ReactionsFacile Lewis Acid-Mediated Synthesis of Diversely Functionalized Bicyclic Tetrazoles

Synthesis of decahydropyrrolo[1,2-a]tetrazolo[1,5-d]pyrazines via Strecker reaction and intramolecular [3+2] cycloaddition

An efficient method for synthesizing a series of novel (5aS,10R)-10-aryl-5,5a,6,7,8,10-hexahydropyrrolo[1,2-a]tetrazolo[1,5-d]pyrazines by using a catalyst-free three-component Strecker reaction followed by an intramolecular [3+2] cycloaddition.

A review of syntheses of 1,5-disubstituted tetrazole derivatives

This report provides a brief overview of the various representative literature procedures for the synthesis of 1,5-disubstituted tetrazoles (1,5-DSTs) and fused 1,5-disubstituted tetrazoles with more than 120 references. Most of the published methods for the synthesis of 1,5-DSTs include the use of nitriles, amides, thioamides, imidoyl chlorides, heterocumulenes, isocyanates, isothiocyanates, carbodiimides, ketenimines, ketones, amines, and alkenes as the starting materials. The transformation of 1- and 5-substituted tetrazoles into 1,5-DSTs is also covered in this report.

Hierarchically porous AlPO-5-based microspheres as heterogeneous catalysts for the synthesis of 5-substituted 1H-tetrazoles via [3+2] cycloaddition

W-containing AlPO-5 microspheres were effective catalyst for the synthesis of 5-substituted 1H-tetrazoles by [3+2] cycloaddition.