New Catalyst for the Synthesis of 2-Phenyl-1,2,3-triazole.

A new catalyst was developed for the synthesis of 2-phenyl-1,2,3-triazole: copper triflate Cu(OSO2CF3)2. The process of cyclization of glyoxal phenylosazone in the presence of Cu(OSO2CF3)2 was optimized that made it possible to increase the yield of the target product to 82%.