l-Proline catalyzed one-step synthesis of 4,5-diaryl-2H-1,2,3-triazoles from heteroaryl cyanostilbenes via [3+2]cycloaddition of azide

- l-Proline-catalyzed one-step [3+2]cycloaddition of azide with cyanostilbenes.
- A novel method for the synthesis of 2H-1,2,3-triazoles from cyanostilbenes.
- Method provides a facile, efficient, and environmentally benign procedure.
- Method affords good yields and relatively short reaction times.
- Affords 2H-1,2,3-triazoles that cannot undergo cis-trans isomerization.