Facile Synthesis of Some Novel 6-Alkyl or Aryl-7H-Tetrazolo[5,1-b][1,3,4] Thiadiazine
摘要:
New bis-heterocyclic thiadiazine derivatives containing a tetrazole nucleus have been synthesised by simple, high yielding routes and characterised by FT-IR, H-1 NMR, C-13 NMR and mass spectral analysis. The key step in the construction of the six-substituted 7H-tetrazolo[5,1-b][1,3,4] thiadiazine derivatives involved the cyclocondensation of sodium 1-amino-1H-tetrazole-5-thiolate with alpha-haloketones. The radical scavenging activity of the new tetrazolothiadiazines was also investigated.