Abstract
Thioacetamides and thiobenzamides undergo cyclization with N-alkylquinoxalinium salts in the presence of bases to give 4-alkyl-3a,4,9,9a-tetrahydrothiazolo[4,5-b]quinoxalines.
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See [1] for communication 10.
Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 686–690, May, 1984.
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Baklykov, V.G., Charushin, V.N., Chupakhin, O.N. et al. Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 11. Reactions of quinoxalinium salts with thioamides — Simple method for the synthesis of hydrogenated thiazolo[4,5-b]quinoxalines. Chem Heterocycl Compd 20, 554–558 (1984). https://doi.org/10.1007/BF00514311
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DOI: https://doi.org/10.1007/BF00514311