1,2,3- Triazoles: general and key synthetic strategies

The applications of the 1H-1,2,3-triazole derivatives are particularly attractive and have received prominent attention in scientific research. The characteristics of these heterocycles motivated the development of different strategies for their preparation and molecular diversification. Most of the synthetic procedures available in the literature are based on catalysis with copper salts. Therefore, this review has as complementary central focus and updates the information about the properties and the main methods for the preparation of 1H-1,2,3-triazole derivatives, with emphasis on methods involving 1,3-dipolar cycloaddition between organic azides and terminal alkynes catalyzed by copper. [GRAPHICS] .