R 30 Reactions of N-alkylazinium cations. 3. Quaternary pteridinium salts. Synthesis, structure, and reactions with simple nucleophiles [Electronic resource] / I. V. Kazantseva, V. N. Charushin, O. N. Chupakhin, A. I. Chernyshev, S. E. Esipov // Chemistry of Heterocyclic Compounds. - 1985. - Vol. 21, № 9. - С. 1048-1055. - Bibliogr. : p. 1054-1055 (14 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): 4-Morpholinopteridine -- TRIETHYLOXONIUM TETRA-FLUOROBORATE -- NUCLEOSIDES Аннотация: 4-Morpholinopteridine reacts with triethyloxonium tetra-fluoroborate to give two types of isomeric quaternary salts, viz., 1-ethyl- and 8-ethyl-4-morpholinopteridinium tetrafluoroborates. The structures of the pteridinium cations were proved by the 1H and 13C NMR spectra and also by chemical transformations in reactions with simple nucleophiles. \\\\expert2\\nbo\\Chemistry of Heterocyclic Compounds\\1985, v.21, N 9, p. 1048.pdf |