C 98 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 [Electronic resource] / V. G. Baklykov, V. N. Charushin, O. N. Chupakhin, V. N. Drozd // Chemistry of Heterocyclic Compounds. - 1984. - Vol. 20, № 5. - P554-558. - Bibliogr. : p. 558 (13 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): THIOACETAMIDES -- THIOBENZAMIDES -- N-ALKYLQUINOXALINLUM SALTS Аннотация: 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 \\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1984, v.20, N 5, p. 554.pdf |