C 98 Cyclization of N-alkylazinium cations with bifunctional nucleophiles. 29. Synthesis of a novel 1,3,4-thiadiazolo-[2,3-a]quinoxalino[2,3-d]pyrrole heterocyclic system [Electronic resource] / V. G. Baklykov, V. N. Charushin, O. N. Chupakhin, G. G. Aleksandrov // Chemistry of Heterocyclic Compounds. - 1990. - Vol. 26, № 5. - С. 592-597. - Bibliogr. : p. 597 (10 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): ACETYLACETONE -- ACETOACETATE ESTERS Аннотация: 1,4,4a,5,10,10a-Hexahydro-1,3,4-thiadiazino[5,6-b]quinoxalines react with acetylacetone and acetoacetate esters upon heating in ethanol to give derivatives of a novel heterocyclic system, hexahydro-1,3,4-thiadiazolo[2,3-a]quinoxalino[2,3-d]pyrrole \\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1990, v.26, N 5, p.592.pdf |