Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 10. Isomeric thiazolo[4,5-b]quinoxalines in reactions of N-methylquinoxalinium ions with dithiocarbamates |
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Authors: | V. N. Charushin V. G. Baklykov O. N. Chupakhin G. M. Petrova E. O. Sidorov |
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Affiliation: | (1) S. M. Kirov Ural Polytechnic Institute, 620002 Sverdlovsk |
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Abstract: | The cyclization of N-methylquinoxalinium iodide with ammonium salts of N-alkyl-dithiocarbamic acids in DMSO leads to 4-methyl-2,3,3a,4,9,9a-hexahydrothiazolo-[4,5-b]quinoxalines, whereas regioisomeric cycloadducts with a reversed orientation of the thiazole ring are formed in ethanol in the presence of diethylamine.See [1] for communication 9.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 5, pp. 680–685, May, 1984. |
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