P 99 Pyrido[2,3-b]- and pyrimido[4,5-b]quinoxalines: the first fluorine-containing derivatives [Electronic resource] / V. N. Charushin, S. K. Kotovskaya, N. M. Perova, O. N. Chupakhin // Mendeleev Communications. - 2001. - Vol. 11, № 2. - P54-55 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Fluorinated derivatives of pyrido[2,3-b]- and pyrimido[4,5-b]quinoxalines 5–8 have been prepared through the condensation of 2-amino-3-cyano- and 2-amino-3-aminocarbonyl-substituted 6-fluoro-7-R-quinoxalines 1–4 with dimethyl acetylenedicarboxylate and triethyl orthoformate, respectively?????? \\\\expert2\\nbo\\Mendeleev Communications\\2001, v.11, N 2. p.54.pdf |