C 98 Cyclization of N-alkylazinium cations with bisnucleophiles. 6. Cycloelimination of tetrahydro-endo-furo[2,3-b]quinoxalines leading to 2,3-disubstituted tetrahydroquinoxalines [Electronic resource] / M. G. Ponizovskii, O. N. Chupakhin, V. N. Charushin, G. G. Aleksandrov // Chemistry of Heterocyclic Compounds. - 1982. - Vol. 18, № 10. - P1098-1103. - Bibliogr. : p. 1103 (10 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): N-METHYLQUINOXALINIUM SALT -- β-DIKETONE -- TETRAHYDROQUINOXALINE Аннотация: The reaction of an N-methylquinoxalinium salt with a β-diketone under thermodynamic-control conditions leads to 2,3-disubstituted tetrahydroquinoxaline via cycloelimination of the initially formed tetrahydro-endo-furo[2,3-b]quinoxaline \\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1982, v.18, N 10, p.1098.pdf |