Synthesis of Novel 1,2,4‐Trizaole‐ and Isoxazol(in)e‐Containing Heterocycles.

Abstract A route for the regiospecific synthesis of 3-(triazol-3-yl)-1,2-isoxazol(in)e-5-yl-aryl derivatives has been developed by intermolecular 1,3-dipolar cycloaddition chemistry, and novel annulated compounds having triazole/isoxazole have been prepared by employing intramolecular nitrile oxide 1,3-dipolar cycloaddition.