R 30 Reactions of N-alkylazinium cations. 2. Reaction of quinoxalinium salts with malonodinitrile and cyanoacetic ester [Electronic resource] / V. N. Charushin, O. N. Chupakhin, G. M. Petrova, E. O. Sidorov, N. A. Klyuev, L. G. Egorova // Chemistry of Heterocyclic Compounds. - 1981. - Vol. 17, № 2. - P189-194. - Bibliogr. : p. 194 (12 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): N-ALKYLQUINOXALINLUM SALTS -- MALONODINITRILE -- CYANOACETIC ESTER CARBANIONS Аннотация: N-Alkylquinoxalinlum salts react with malonodinitrile and cyanoacetic ester carbanions to give addition products, which, due to favorably disposed CN groups and active CH centers, subsequently undergo intramolecular cyclization with the formation of a five-membered ring. \\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1981, v.17, N 2, p.189.pdf |