Synthesis of 5-aroylamino-3H-1,3,4-thiadiazole-2-thiones and their tautomerism |
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Authors: | Nam Sook Cho Goo Ni Kim Cyril Prknyi |
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Institution: | Nam Sook Cho,Goo Ni Kim,Cyril Párkányi |
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Abstract: | 5-Aroylamino-3H-1,3,4-thiadiazole-2-thiones 2 have been synthesized by acylation of 5-amino-3H-1,3,4-thiadiazole-2-thione 1 . 5-Aroylamino-3H-1,3,4-thiadiazole-2-thiones can exist in two tautomeric forms — a thiol form and a thione form. On the basis of the 13C nmr spectra and additional experimental information, it has been established that the thione form is the stable form in which these compounds exist. |
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