Phosphorus, Sulfur and Silicon and the Related Elements p. 2361 - 2371 (2006)
Update date:2022-08-11
Topics:
Moustafa
Haggam
Younes
El Ashry
The reaction of DL-malic and succinic acids with thiocarbohydrazide afforded 1,2-bis[4-amino-5-mercapto-1,2,4-triazol-3-yl]-ethane derivatives 3a and 3b. The reaction of 3a,b with phenacyl bromide and benzoin afforded 1,2-bis-1,2,4-triazolo [3,4-b][1,3,4]thiadiazine derivatives 4 and 5. The carboethoxymethylation of 3a and 3b gave 6a and 6b, respectively, and their reactions with carbon disulfide and benzoylisothiocyanate gave the 1,2-bis-1,2,4-triazolo[3,4-b][1,3,4]thiadiazole 7 and 9, and with p-nitrobenzaldehyde gave a Schiff's base and dihydrothiadiazole 8. The structures were confirmed by using 1H and 13C NMR spectra. Selected members of these compounds were screened for antimicrobial activity. Copyright Taylor & Francis Group, LLC.
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