Synthesis of substituted 1, 2, 4-triazoles from reaction of nitrilimines with substituted hydrazones

Abstract

Hydrazonoyl halides (1) react with substituted hydrazones of alkanone, cycloalkanone and heterocyclic ketones (2-4) to give the cycloaddition products 4, 5-dihydro-1, 2, 4-triazoles (5-7). The assignment of structures (5-7) was based on spectral data (mass spectra, IR, H-1 and C-13 NMR).