Abstract
The reactions of 3-aryl-1,2,4-triazines with aromatic thioamides and 4-arylthiosemicarbazides in acetic anhydride at room temperature afforded cyclic products of the tandem nucleophilic addition reactions, viz., tetrahydrothiazolo[4,5-e]-annelated 1,2,4-triazines, in good yields. The latter underwent aromatization in the presence of potassium permanganate.
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Mochul"skaya, N.N., Andreiko, A.A., Kodess, M.I. et al. Annelation of the thiazole ring to 1,2,4-triazines by tandem AN—AN or SN H—SN H reactions. Russian Chemical Bulletin 53, 1279–1289 (2004). https://doi.org/10.1023/B:RUCB.0000042287.32992.54
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DOI: https://doi.org/10.1023/B:RUCB.0000042287.32992.54