CONDENSED IMIDAZO-1,2,4-AZINES. 12. SYNTHESIS AND STRUCTURE OF SUBSTITUTED 5-H-IMIDAZO-1,2,4-TRIAZEPIN-4-ONES (-THIONES)

Article abstract of DOI:10.1007/BF00506079

The synthesis has been effected of new representatives of the imidazo<1,2-b>-1,2,4-triazepin-4-ones (-thiones).It has been shown with the aid of IR and UV spectroscopic and mass spectrometric methods that the lactam (thione) form is the predominant one fo