S 98 Synthesis of [2,3-b]thieno- and furoquinoxalines by the S-N(H) and S-N(ipso) reactions of 2-substituted quinoxalines with acetophenones [Electronic resource] / A. Yu. Ponomareva, D. G. Beresnev, N. A. Itsikson, O. N. Chupakhin, G. L. Rusinov // Mendeleev Communications. - 2006. - Vol. 16, № 1. - P16-18 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The treatment of quinoxalin-2-one with acetophenones in the presence of boron trifluoride gives 3-(2-hydroxy-2-R-vinyl)-quinoxalin-2-ones, which can be transformed into [2,3-b]thienoquinoxalines by reactions with P2S5. \\\\Expert2\\nbo\\Mendeleev Communications\\2006, v.1, p.16.pdf |
D 45 Deryabina, T. G. Interaction 3-(2-hydroxy-2-aryl/hetaryl-vinil)-1H-quinoxalin-2-ones with hydrazine hydrate [Text] : доклад, тезисы доклада / T. G. Deryabina, I. A. Utepova, O. N. Chupakhin // Fifth International Conference on Organic Chemistry for young Scientists (InterYCOS-2009) "Universities Contribution in the Organic Chemistry Progress", devoted to the 175 th anniversary of D.I.Mendeleevs birthday and 80th anniversary of the Chemistry department of St. Petersburg State University foundation, Saint-Petersburg, 22-25 june 2009 : abstr. - СПб., 2009. - 117 (P-1-19). - Bibliogr. : p. 117 (1 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ |
A 89 Asymmetric induction in the reactions of azinones with C-nucleophiles [Electronic resource] / O. N. Chupakhin, I. N. Egorov, V. L. Rusinov, P. A. Slepukhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2010. - Vol. 59, № 5. - P991-1001 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): TRIAZINONES -- QUINOXALIN -- C-NUCLEOPHILES -- INDOLES Аннотация: Effect of acylating agents on the course of addition of C-nucleophiles to 1,2,4- and 1,3,5-triazinones, as well as to quinoxalin-2(1H)-one, was studied. A series of new azinone derivatives was obtained. A method for the preparation of diastereomerically pure addition products of indoles to 1,2,4-triazinones and quinoxalin-2(1H)-one in the presence of N-Ts-L-amino acid acyl chlorides was suggested \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2010, 59 (5), 991-1001.pdf |
S 98 Synthesis of regioisomeric N- and O-alkylated 3-polyfluoroalkyl-1,2-dihydroquinoxalin-2-o / A. E. Ivanova, O. G. Khudina, Ya. V. Burgart, V. I. Saloutin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №5. - С. 937-941 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): SYNTHESIS -- DIHYDROQUINOXALIN -- POLYFLUOROALKYL Аннотация: 3-Polyfluoroalkyl-1,2-dihydroquinoxalin-2-ones react with 4-bromobutyl acetate to furnish 1-(4-acetoxybutyl)quinoxalin-2-ones and 2-(4-acetoxybutoxy)quinoxalines in the ratio 2: 1. Deacylation of these compounds under acidic conditions gives the corresponding 1-(4-hydroxybutyl)- and 2-(4-hydroxybutoxy)-substituted quinoxalines. The structures of compounds synthesized were established by X-ray crystallography, IR spectroscopy, 1H and 19F NMR spectroscopy, GLC-MS |