Н 52 Неожиданное превращение фторсодержащих CH-кислот при взаимодействии с хлоридом иода [] = Sudden conversion of fluorine-containing CH-acids during interaction with iodine chloride / В. Г. Пономарев, П. В. Подсевалов, Т. И. Назаренко, Л. Е. Деев, К. И. Пашкевич // Журнал органической химии. - 1990. - Т. 26, N 6. - С. 1365-1366 . - ISSN 0514-7492 Рубрики: ХИМИЧЕСКИЕ НАУКИ |
S 98 Synthesis of fluorinated furo- and pyrrolo[3,4-b]quinoxaline 4,9-dioxides [Electronic resource] / S. K. Kotovskaya, N. M. Perova, V. N. Charushin, O. N. Chupakhin // Mendeleev Communications. - 1999. - Vol. 9, N 2. - P76-77 Рубрики: ХИМИЧЕСКИЕ НАУКИ \\\\expert2\\nbo\\Mendeleev Communications\\1999, v.9, N 2. p.76.pdf |
T 82 Transformations of 5-diazo derivatives of 1,3-dimethyl-6-hydrazinouracil - new synthetic approaches to novel pyrimidine-derivatives [Electronic resource] / Y. A. Azev, O. L. Guselnikova, O. N. Chupakhin // Mendeleev Communications. - 1994. - N 6. - P208-209 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: 1,3-Dimethyl-6-hydrazinouracil 1 gives hydrazones 2 with the corresponding aldehydes. Heating of 6-hydrazinouracil 1 in ethanol in the presence of hyrochloric acid results in the formation of N1, N2-bis(1,3-dimethyl-2,6-dioxopyrimid-4-yl)hydrazine 3, which gives the diazo derivative 4 on treatment with 2,4-diazido-6-cyanomethoxy-s-triazine in DMSO in the presence of triethylamine et room temperature |
C 73 Conformational structure of esters of fluorinated acylpyruvic acids [Electronic resource] / P. N. Kondrat'ev, Z. E. Skryabina, V. I. Saloutin, M. N. Rudaya, T. A. Sinitsyna, K. I. Pashkevich // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1990. - Vol. 39, N 6. - P1273-1277 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Esters of fluorinated acylpyruvic acids were obtined for the first time. PMR and IR spectroscopy, dipole moment measurements, and quantum chemical calculations showed that these compounds exist as equilibrium mixtures of E and Z enolic isomers \\\\Expert2\\nbo\\Russian Chemical Bulletin\\1990, 39 (6), 1273.pdf |
S 98 Synthesis of stereoisomers of 2,4-diaminoglutaric and 2,5-diaminoadipic acids [Electronic resource] / V. P. Krasnov, E. A. Zhdanova, M. A. Koroleva, I. M. Bukrina, M. I. Kodess, V. K. Kravtsov, V. N. Biyushkin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1997. - Vol. 46, N 2. - P319-323 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: Stereoisomers of 2,4-diaminodlutaric and 2,5-diaminoadipic acids were synthesized from dlutamic and 2-aminoadipic acids, respectively. The stereochemistry of the products was established by IH NMR spectroscopy and X-ray analysis \\\\Expert2\\nbo\\Russian Chemical Bulletin\\1997, 46 (2), 319-323.pdf |
D 29 Decarboxylation and side transamination when glutamate decarboxylase from Escherichia coli acts on substrate analogues modified at C-3 and C-4 [Text] / R. R. Khristoforov, B. S. Suchareva, H. B. F. Dixon, M. J. Sparkers, V. P. Krasnov, I. M. Bukrina, A. N. Grishakov // Biochemistry. - 1996. - Vol. 61, N 3. - P343-348 Рубрики: ХИМИЧЕСКИЕ НАУКИ Аннотация: The interaction of glutamate decarboxylase with aspartate and glutamate analogues modified at C-3 and C-4 was studied. 3-Arsonoalanine, 3-phosphonoalanine, 2-amino-4-arsonobutyric acid, 2-amino-4-phospho-nobutyric acid, a mixture of diastereoisomers of 4-(methylthio)glutamic acid, and erythro-4-(methylthio)glutamic acid were shown to be poor substrates for the enzyme. |
S 98 Synthesis and study of (2S, 4S)-4-arylamino-2-carboxy-5-pyrrolidones [Electronic resource] / V. P. Krasnov, I. A. Nizova, T. A. Sinitsyna, N. V. Avdyukova // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1993. - Vol. 42, № 12. - P2001-2004 Рубрики: ХИМИЧЕСКИЕ НАУКИ Кл.слова (ненормированные): СИНТЕЗ ОРГАНИЧЕСКИЙ -- ОРГАНИЧЕСКИЙ СИНТЕЗ -- (2S. 4S)-4-АРИЛАМИН-2-КАРБОКСИ-5-ПИРРОЛИДОНЫ -- КИСЛОТА ГЛУТАМИНОВАЯ -- ГЛУТАМИНОВАЯ КИСЛОТА -- КОНСТАНТЫ ДИССОЦИАЦИИ КИСЛОТ -- КИСЛОТА 4-АРИЛАМИНПИРОГЛУТАМИНОВАЯ -- 4-АРИЛАМИНПИРОГЛУТАМИНОВАЯ КИСЛОТА -- ГИДРОЛИЗ -- ДИМЕТИЛ-(2S.4S)-4-АРИЛАМИН-N-ФТАЛОИЛГЛУТАМАТЫ -- КОНСТАНТЫ ПРОТОНИРОВАНИЯ -- ГРУППА АРИЛАМИНА -- пиролидоны -- КИСЛОТЫ ОРГАНИЧЕСКИЕ -- ОРГАНИЧЕСКИЕ КИСЛОТЫ -- ОРГАНИЧЕСКАЯ ХИМИЯ -- ХИМИЯ ОРГАНИЧЕСКАЯ Аннотация: (2S, 4S)-4-Arylamino-2-carboxy-5-pyrrolidones were prepared by hydrolysis of dimethyl (2S, 4S)-4-arylamino-N-phthaloylglutamates. The protonation constants of the arylamino group in the synthesized compounds were determined. \\\\Expert2\\nbo\\Russian Chemical Bulletin\\1993, 42 (12), 2001-2004.pdf |