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 |
P 91 Preparation of Amino Derivatives from Industrial Mixtures of Polychlorobiphenyls [Electronic resource] / T. I. Gorbunova, A. Ya. Zapevalov, V. E. Kirichenko, V. I. Saloutin, O. N. Chupakhin // Russian Journal of Applied Chemistry. - 2001. - Vol. 74, № 1. - P118-122. - Bibliogr. : p. 122 (16 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): AMINO DERIVATIVES -- MIXTURES -- INDUSTRIAL MIXTURES -- POLYCHLOROBIPHENYLS -- AMINOPOLYCHLOROBIPHENYLS Аннотация: Chemical utilization (conversion) of polychlorobiphenyls by nitration of their industrial mixture was studied. Reduction of the nitro derivatives gave mixtures of aminopolychlorobiphenyls. \\\\Expert2\\nbo\\Russian Journal of Applied Chemistry\\2001, v. 74, N. 1, p.118.pdf |
S 73 Sosnovskikh, V. Ya. 2-Polyfluoroalkylchromones. 12. Nitration of 5,7-dimethyl-2-polyhaloalkylchromones and complete assignment of signals in the 1H and 13C NMR spectra of 5,7-dimethyl-2-trifluoromethylchromone and its mono- and dinitro derivatives [Electronic resource] / V. Ya. Sosnovskikh, B. I. Usachev, M. I. Kodess // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2002. - Vol. 51, № 10. - P1817-1828 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The nitration of 5,7-dimethyl-2-polyhaloalkylchromones affords either 5,7-dimethyl-6-nitro- or 5,7-dimethyl-6,8-dinitro-2-polyhaloalkylchromones, depending on the reaction conditions. Signals in the 1H and 13C NMR spectra of the sterically hindered chromones were completely assigned using the 2D NOESY, HETCOR, and COLOC spectra. The influence of nonplanar nitro groups on chemical shifts of carbon atoms was studied. Some spectral peculiarities of the peri-methyl group were revealed. The 1H-1H and 13C-1H spin-spin coupling constants, including the extreme six-bond long-range coupling between the protons of the Me(5) group and H(8), were determined \\\\Expert2\\nbo\\Russian Chemical Bulletin\\2002, 51 (10), 1817.pdf |
S 98 Synthesis of enantiomers of 6-nitro- and 6-amino-2-methyl-1,2,3,4-tetrahydroquinolines / D. A. Gruzdev, G. L. Levit, M. I. Kodess, V. P. Krasnov // Chemistry of Heterocyclic Compounds. - 2012. - Vol.48, №5. - С. 748-757 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): AMIDES -- DIASTEREOISOMERS -- ENANTIOMERS Аннотация: Enantiomers of 2-methyl-6-nitro-1,2,3,4-tetrahydroquinoline have been obtained by kinetic resolution of racemic 2-methyl-1,2,3,4-tetrahydroquinoline in acylation with acyl chlorides of N-protected amino acids followed by regioselective nitration of the diastereoisomeric amides and acidic hydrolysis. The introduction of a trifluoroacetyl protecting group into the position 1 of the enantio pure nitro compound followed by the reduction led to (S)-6-amino-2-methyl-1-trifluoroacetyl-1,2,3,4-tetra-hydroquinoline in a high yield \\\\Expert2\\nbo\\Chemistry of Heterocyclic Compounds\\2012, v.48, N 5, p.748-757.pdf |
S 98 Synthesis of poly[N-(2,3-dihydroxypropyl)aminostyrene], a new sorbent for boron(III) ions / D. V. Nesterov, L. S. Molochnikov, M. I. Kodess, E. G. Matochkina, O. V. Koryakova, Yu. G. Yatluk, A. V. Pestov // Russian Journal of Applied Chemistry. - 2013. - Vol.86, №5. - С. 777-781. - Библиогр.: с. 781 (33 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): AMINOSTYRENE -- NITRATION -- GLYCIDOL Аннотация: A procedure was developed for preparation of poly[N-(2,3-dihydroxypropyl)aminostyrene] via successive stages of nitration, reduction, and glycidol treatment of polystyrene, which gives the polymer with a maximal degree of functionalization. The composition and structure of the intermediates and end products of the polymer-analogous reactions were characterized by elemental analysis, IR spectroscopy, and solid-state 13C NMR spectroscopy. The sorption characteristics of poly[N-(2,3-dihydroxypropyl)aminostyrene] toward boroncontaining ions were assessed \\\\expert2\\NBO\\Russian Journal of Applied Chemistry\\2013, v. 86, N 5, p.777.pdf |
F 33 Features of polychlorinated biphenyls nitration [Electronic resource] / T. I. Gorbunova, M. G. Pervova, K. A. Plotnikova, V. I. Saloutin, O. N. Chupakhin // Russian Journal of General Chemistry. - 2015. - Vol. 85, № 7. - С. 1611-1616. - Bibliogr. : p. 1616 (21 ref.) Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): POLYCHLORINATED BIPHENYLS -- GAS CHROMATOGRAPHY -- NITRATION Аннотация: Nitration of mono-, di-, and trichlorobiphenyls has been studied. The nitration degree depends on the number of chlorine substituents; one to four nitro groups can be introduced. The conclusions have been confirmed by results of nitration of the "Trikhlorbifenil" technical mixture of polychlorinated biphenyls. \\\\expert2\\nbo\\Russian Journal of General Chemistry\\2015, V. 85, N 7, p. 1611-1616.pdf |