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1.
Инвентарный номер: нет.
   
   S 66


    Skryabina, Z. E.
    Cyclization of fluoroalkyl-containing 1,3-dicarbonyl compounds with ethylenediamine hydroperchlorate to 1,4-diazepines [Electronic resource] / Z. E. Skryabina, Ya. V. Burgart, V. I. Saloutin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1991. - Vol. 40, № 4. - P788-794
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 2,3-Dihydro-1H-1,4-diazepines and 1,2,3,4-tetrahydro-1,4-diazepin-5-ones were obtained by direct condensation of fluorine-containing 1,3-diketones and 1,3-keto ethers, respectively, with ethylenediamine monohydroperchlorate. The structure of the compounds was confirmed by1H NMR, mass spectrometry and molecular weight determination

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\1991, 40 (4), 788.pdf
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2.
Инвентарный номер: нет.
   
   S 17


    Saloutin, V. I.
    New fluorine-containing polyazaheterocycles [Electronic resource] / V. I. Saloutin, Z. E. Skryabina, Ya. V. Burgart // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1992. - Vol. 41, № 9. - P1700-1703
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Interaction of perfluoropentene-2 with ethylenediamine, diethylenetriamine, and triethylenetetramine forms previously unknown fluorine-containing azaheterocycles in yields of 25–74%. The structure of the compounds obtained has been confirmed by1H and19F NMR methods and mass spectrometry

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\1992, 41 (9), 1700.pdf
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3.
Инвентарный номер: нет.
   
   S 81


   
    Stable sigma-adducts of 4,6-dinitrotetrazolo[1,5-a]pyridine with alkoxide anions [Electronic resource] / I. E. Filatov, G. L. Rusinov, O. N. Chupakhin, X. Solans, M. Font-Bardia, M. Font-Altaba // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1994. - Vol. 43, № 7. - P1214-1219
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reaction of 2-chloro-3,5-dinitropyridine with two equivalents of KN3 in the presence of ROH results in stable Meisenheimer-type -adducts of 4,6-dinitrotetra-zolo[1,5-a]pyridine with RO– anions (R = H, Alk, Ph). The mechanism of -complex formation was suggested. The structure of the -adduct with R = Me was established by IR and NMR spectroscopy and by X-ray diffraction analysis.

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\1994, 43 (7), 1214.pdf
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4.
Инвентарный номер: нет.
   
   A 53


   
    An Unusually easy oxidative dequaternization of N-alkyl-1,2,4-triazinium salts [Electronic resource] / O. N. Chupakhin, B. V. Rudakov, P. McDermott, S. G. Alexeev, V. N. Charushin, F. Hegarty // Mendeleev Communications. - 1995. - Vol. 5, № 3. - P104-105
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Unusually easy dequaternization has been found to occur on treatment of 1-alkyl-3-morpholino-5-phenyl-1,2,4-triazinium iodides with triethylamine in alcohol or acetone solutions at room temperature; a plausible reaction mechanism has been advanced on the basis of NMR and kinetic studies

\\\\expert2\\nbo\\Mendeleev Communications\\1995, v.5, N 3. p.104.pdf
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5.
Инвентарный номер: нет.
   
   K 66


    Kodess, M. I.
    19F NMR of fluorooxiranes [Text] : доклад, тезисы доклада / M. I. Kodess, T. I. Filyakova, A. Ya. Zapevalov // Thirteenth European Experimental N.M.R. Confererence (EENC 96), Paris(France), 19-24 May 1996 : Abstract Book . - Paris (France), 1996
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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6.
Инвентарный номер: нет.
   
   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
ББК 54
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
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7.
Инвентарный номер: нет.
   
   K 66


    Kodess, M. I.
    A 19f decoupler for the tesla bs 587a nmr spectrometer [Text] / M. I. Kodess, V. S. Shaburov, S. N. Frolov // Instruments and Experimental Tehniques. - 1999. - Vol. 42, № 3. - P379-380
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A decoupling unit (decoupler) operating at a resonance frequency of 19F nuclei (75.26 MHz) is developed. The unit is a plug-in block intended for the Tesla BS 587A NMR spectrometer. It allows one to perform double resonance experiments involving 19F nuclei. Decoupler parameters are determined in the continuous wave and pulsed operation modes

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8.
Инвентарный номер: нет.
   
   S 98


   
    Syntheses of novel 4-polyfluoroalkyl-substituted 5,6-oligomethylene pyrimidines [Text] / D. V. Sevenard, O. G. Khomutov, O. V. Koryakova, V. V. Sattarova, M. I. Kodess, J. Stelten, I. Loop, E. Lork, K. I. Pashkevich, G. -V. Roeschenthaler // Synthesis. - 2000. - № 12. - P1738-1748
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 2-Acylcycloalkanones having polyfluoroalkyl groups react with guanidine, urea, thiourea, methylisothiourea, benzamidine, guanylthiourea, dicyanodiamide, and trifluoroacetylurea by Lewis-acid catalysis to form the corresponding 5,6-oligomethylene pyrimidines. A decrease in the yields along with increase of polyflyoroalkyl substituent length in the molecule of the starting 1,3-diketone was observed in the case of reagents with lower nucleophilicity (urea, thiourea, dicyanodiamide). The pyrimidines obtained from aromatic aldehydes showed E-configuration with respect to the arylidene double bond. Tautomeric structures as a function of the substituent in 2 position in the pyrimidine ring both in liquid and solid state were investigated by X-ray diffraction, IR and NMR spectroscopy.

\\\\expert2\\nbo\\Synthesis\\2000, № 12. p.1738.pdf
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9.
Инвентарный номер: нет.
   
   P 80


   
    Polyfluoro-2,3-epoxyalkanes in reactions with thiourea and thiosemicarbazide [Text] / L. V. Saloutina, A. Ya. Zapevalov, M. I. Kodess, V. I. Saloutin, G. G. Aleksandrov, O. N. Chupakhin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2000. - Vol. 36, № 6. - P887-899. - Bibliogr. : p. 899 (17 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
POLYFLUORO-2,3-EPOXYALKANES -- THIOUREA -- THIOSEMICARBAZIDE
Аннотация: Reactions of polyfluoro-2,3-epoxyalkanes with thiourea and thiosemicarbazide afforded 2-amino-4-hydroxy-4,5-di(polyfluoroalkyl)-5-fluoro-1,3-thiazolines and 2-hydrazino-4-hydroxy-4,5-di(polyfluoroalkyl)-5-fluoro-1,3-thiazolines respectively. Unsymmetrical oxiranes furnish mixtures of regioisomeric heterocyclic compounds, and the epoxy cycle is predominantly cleaved from the side of bulkier fluoroalkyl group. The reactions of E-oxiranes are stereospecific and provide 1,3-thiazolines in the E-form. The structure of compounds obtained was confirmed by IR, 19F, 1H, and 13C NMR spectroscopy, by mass spectra and chemical transformations. E-isomers of 2-amino-4-hydroxy-4,5-bis(trifluoromethyl)-5-fluoro-1,3-thiazoline and 2-amino-5-heptafluoropropyl-4-hydroxy-4-trifluoromethyl-5-fluoro-1,3-thiazoline were subjected to X-ray diffraction analysis.

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10.
Инвентарный номер: нет.
   
   N 91


   
    Nucleophilic substitution of hydrogen in the reaction of 1,2,4-triazin-4-oxides with cyanamide [Electronic resource] / V. N. Kozhevnikov, A. M. Prokhorov, D. N. Kozhevnikov, V. L. Rusinov, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2000. - Vol. 49, № 6. - P1122-1124
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: It was shown that cyanamide can successfully be used in reactions of nucleophilic substitution of hydrogen with 1,2,4-triazin-4-oxides in the presence of a base to give 5-cyanoimino-1,2,4-triazines. It was found by13C NMR spectroscopy that these compounds and their alkylation products at the cyclic nitrogen atom exist in the form of 5-cyanoimino-2,5-dihydro-1,2,4-triazines

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2000, 49 (6), 1122.pdf
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11.
Инвентарный номер: нет.
   
   N 89


   
    Novel 1-trifluoromethyl substituted 1,2-ethylenediamines and their use for the synthesis of fluoroquinolones [Text] / A. Y. Aizikovich, M. V. Nikonov, M. I. Kodess, V. Yu. Korotaev, V. N. Charushin, O. N. Chupakhin // Tetrahedron. - 2000. - Vol. 56, N 13. - P1923-1927
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A common approach to the synthesis of 1-trifluoromethyl-1,2-ethylenediamines was deweloped. Based on these original building blocks the new derivatives of N-substituted fluoroquinolones bearing the trifluoromethyl group were obtined

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12.
Инвентарный номер: нет.
   
   F 98


   
    Fused fluoroquinolones: synthesis and 1H and 19F NMR studies [Text] / V. N. Charushin, E. V. Nosova, G. N. Lipunova, M. I. Kodess // Journal of Fluorine Chemistry. - 2001. - Vol. 110, № 1. - P25-30. - Bibliogr. : p. 30 (19 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: New derivatives of fused fluoroquinolones bearing five aromatic rings have been obtained. The 19F NMR spectra of these pentacyclic fluoroquinolones demonstrate unusual through space 1H–19F and 19F–19F spin–spin interactions with coupling constants 6J(F, H)=2.0–3.0 Hz, 7J(F, F)=3.5–4.0 Hz and 9J(F, H)=3.0–3.5 Hz. Relative reactivities of fluorine atoms in pentacyclic fluoroquinolones in the amino-defluorination reactions are also different relative to bi- and tricyclic fluoroquinolones????

\\\\Expert2\\nbo\\Journal of Fluorine Chemistry\\2001.v.110. p. 25.pdf
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13.
Инвентарный номер: нет.
   
   R 30


   
    Reaction of internal fluoroolefin oxides with camphor thiosemicarbazone [Electronic resource] / L. V. Saloutina, A. Ya. Zapevalov, M. I. Kodess, V. I. Saloutin, O. N. Chupakhin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2001. - Vol. 37, № 11. - P1522-1527. - Bibliogr. : p. 1527 (9 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
OXIDES -- FLUOROOLEFIN OXIDES -- CAMPHOR THIOSEMICARBAZONE -- DERIVATIVES -- EPOXY DERIVATIVES
Аннотация: Epoxy derivatives of internal fluoroolefins (both cis and trans isomers) react in a stereospecific manner with (1S)-or rac-camphor thiosemicarbazone in a polar aprotic medium to give the corresponding 5-fluoro-4-hydroxy-4,5-bis(polyfluoroalkyl)thiazol-2-ylhydrazones. From unsymmetrical 2,3-epoxydodeca-fluorohexane a mixture of regioisomeric hydrazones is formed. According to the 1H and 19F NMR data, the resulting trans-hydrazones in (CD3)2SO and CDCl3 exist as mixtures of diastereoisomers occurring in a dynamic equilibrium.

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2001, 37 (11), 1522.pdf
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14.
Инвентарный номер: нет.
   
   H 10


   
    H-1 and C-13-NMR investigations on-adduct formation of 1,2,4-triazine 4-oxides and 3-chloro-6-phenyl-1,2,4-triazine with liquid ammonia and alkylamines [Text] / A. Rykowski, O. N. Chupakhin, D. N. Kozhevnikov, V. N. Kozhevnikov, V. L. Rusinov, der Plas H. C. Van // Heterocycles. - 2001. - Т. 55, № 1. - P127-133
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 1H- and 13C-NMR spectra of the ?-adducts formed between 6-phenyl-1,2,4-triazine 4-oxide (1a), 3-ethyl-6-phenyl-1,2,4-triazine 4-oxide (1b) and liquid ammonia, methylamine or dimethylamine are described, together with 1H NMR spectra of 3-chloro-6-phenyl-1,2,4-triazine (7) in liquid ammonia. The results of the NMR study have shown that the carbon C-5 in 1a-b and 7 is the preferred site for nucleophilic attack by liquid ammonia and alkylamines at low temperatures (from -75° to -20°C). The ?-adduct (5e) formed between 1a and dimethylamine at -75°C on heating to -20°C irreversibly converts to open-chain product (3a), via intermediary C-3 ?-adduct (6). The amination of 7 into 3-amino-6-phenyl-1,2,4-triazine (10) occurs via SN(AE) mechanism involving the isomerisation of the C-5 ?-adduct (8) into the C-3 ?-adduct (9) as confirmed by a 15N study with labeled liquid ammonia.

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15.
Инвентарный номер: нет.
   
   D 98


   
    Dynamic kinetic resolution via 5(4H)-oxazolone formation [Text] : доклад, тезисы доклада / O. N. Chupakhin, V. P. Krasnov, N. Z. Solieva, E. A. Zhdanova, I. M. Bukrina, L. Sh. Sadretdinova, G. L. Levit, M. I. Kodess // XXth European Colloquium on Heterocyclic Chemistry, Stockholm,Sweden, 18-21 Aug. 2002 г. - Stockholm, 2002. - C:3
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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16.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of (2s,4s)-4-phenylamino-5-oxoproline derivatives [Text] / I. A. Nizova, V. P. Krasnov, G. L. Levit, M. I. Kodess // Amino Acids. - 2002. - Vol. 22, № 2. - P179-186. - Bibliogr. : p. 186 (5 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
AMIDES -- PEPTIDES -- AMINO ACIDS -- PYROGLUTAMIC ACID -- NMR SPECTROSCOPY -- PROTECTING GROUPS
Аннотация: The paper describes the synthesis of (2S,4S)-4-(N-Ts)- and (2S,4S)-4-(N-Boc)-phenylamino-5-oxoprolines (pyroglutamic acid). These derivatives have been shown to be useful for synthesis of their amides and peptides in spite of steric hindrances caused by bulky groups adjacent to the reaction centre. Under the conditions applied no lactam ring opening and no loss of stereochemical integrity of any of the chiral centres were observed, which has been confirmed by NMR techniques.

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17.
Инвентарный номер: нет.
   
   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
ББК 54
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
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18.
Инвентарный номер: нет.
   


   
    1H NMR evidence for 5(4H)-oxazolones formation and racemization [Text] : доклад, тезисы доклада / O. N. Chupakhin, V. P. Krasnov, A. M. Demin, G. L. Levit, M. I. Kodess // XXth European Colloquium on Heterocyclic Chemistry, Stockholm,Sweden, 18-21 Aug. 2002 г. - Stockholm, 2002. - C:2
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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19.
Инвентарный номер: нет.
   
   R 30


   
    Reaction of 5-halo-1,2,3-thiadiazoles with aliphatic diamines. Synthesis and intramolecular cyclization of bis(1,2,3-triazolyl-1,2,3-thiadiazolyl)sulfides [Text] / N. N. Volkova, E. V. Tarasov, M. I. Kodess, L. Van Meerlent, W. Dehaen, V. A. Bakulev // Organic and Biomolecular Chemistry. - 2003. - Vol. 1, № 22. - P4030-4038
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Bis[1,2,3]triazolo[1,5-f:5?,1?-b][1,3,6]thiadiazepine and [1,5-g:5?,1?-b][1,3,7]thiadiazocine ring systems have been synthesized from 5-halo-1,2,3-thiadiazoles and aliphatic diamines. We have found that the last step of the process is the cyclization of initially formed bis(1,2,3-triazolyl-1,2,3-thiadiazolyl)sulfides. The structures of the intermediates and products were supported by different NMR spectroscopic methods (1H coupled 13C NMR, 2D HETCOR, HMBC and 1D INADEQUATE experiments) and mass spectrometry. Differences in the reaction pathway for aliphatic and less nucleophilic aromatic diamines were determined.

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20.
Инвентарный номер: нет.
   
   N 10


   
    N-(2-Carboxyethyl)chitosans: Regioselective synthesis, characterisation and protolytic equilibria [Text] / Yu. A. Skorik, C. A. R. Gomes, M. T.S.D. Vasconcelos, Yu. G. Yatluk // Carbohydrate Research. - 2003. - Vol. 338, № 3. - P271-276
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CARBOXYETHYLATION POLYSACCHARIDES -- N-(2-CARBOXYETHYL)CHITOSAN -- POLYAMPHOLYTE
Аннотация: N-(2-Carboxyethyl)chitosans were obtained by reaction of low molecular weight chitosan with a low degree of acetylation and 3-halopropionic acids under mild alkaline media (pH 8-9, NaHCO3) at 60°C. The chemical structure of the derivatives obtained was determined by 1H and 13C NMR spectroscopies. It was found that alkylation of chitosan by 3-halopropionic acids proceeds exclusively at the amino groups. The products obtained are described in terms of their degrees of carboxyethylation and ratio of mono-, di-substitution and free amine content. The protonation constants of amino and carboxylate groups of a series of N-(2-carboxyethyl)chitosans were determined by pH-titration at ionic strength 0.1 M KNO3 and 25°C. © 2002 Elsevier Science Ltd. All rights reserved.

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