F 70 Fluoro-containing heterocycles: XIV. Cyclic adducts of 6-fluoro-7-azidoquinoxaline and their transformation products [Electronic resource] / N. N. Mochul`skaya, E. N. Nagibina, Yu. S. Volchenkova, L. P. Sidorova, V. N. Charushin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2005. - Vol. 41, № 11. - P1694-1701. - Библиогр. : с. 1701 (18 назв.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The possibility of a structural modification of quinoxalines through 1,3-dipolar cycloaddition of 7-azido-6-fluoroquinoxaline to norbornenes, enamines of cyclic ketones, and dimethyl acetylenedicarboxylate was demonstarated. The stability of 1,2,3-triazoline adducts was studied and the structure of the products of their molecular rearrangements was established. The cycloadduct of azide with cyclohexanone enamine undergoes azapinacolone rearrangement involving a contruction of the cycloalkane ring by one member affording amidine of cyclopentanecarboxylic acid. The triazoline adduct of the azide with dicyclopentadiene as a result of the rearrangement affords the corresponding aziridinoquinoxaline. \\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2005, 41 (11), 1694.pdf |
F 70 Fluorine-containing Heterocycles. XI. 5(6)-Fluoro-6(5)-X-benzofuroxans: Synthesis, Tautomerism, and Transformations [Electronic resource] / O. N. Chupakhin, S. K. Kotovskaya, S. A. Romanova, V. N. Charushin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2004. - Vol. 40, № 8. - P1167-1174 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Features of 5(6)-fluoro-6(5)-X-benzofuroxans tautomerism were investigated. By 1H, 13C, and 19F NMR spectroscopy the direction of Boulton-Katritzky rearrangement in nitration, nitrosation, and azo coupling of fluorine-containing furoxanes was determined \\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2004, 40 (8), 1167.pdf |
Aryne-mediated transformations of 5-perfluorophenyl-substituted 3-(pyridin-2-yl)-1,2,4-triazines / T. D. Moseev, M. V. Varaksin, E. A. Nikiforov [et al.] // Actual problems of organic chemistry and biotechnology. - Екатеринбург, 2020. - P274-276 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): PYRIDO[1,2-A]INDOLES -- ARYNE -- REARRANGEMENT |