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1.
Инвентарный номер: нет.
   
   П 26


    Первова, М. Г.
    Определение хлоруксусных кислот в питьевой воде методом реакционной газожидкостной хроматографии [] = Determination of Chloroacetic Acids in Drinking Water by Reaction Gas Chromatography / М. Г. Первова, В. Е. Кириченко, К. И. Пашкевич // Журнал аналитической химии. - 2002. - Т. 57, N 4. - 388-392: схем. - Библиогр. : с. 391-392 (20 назв.) . - ISSN 0044-4502
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Разработана методика определения хлорированных уксусных кислот в питьевой воде, основанная на извлечении методом твердофазной экстракции, переведении хлоруксусных кислот в их трифторэтиловые эфиры, разделении и определении методом газожидкостной хроматографии с электронозахватным детектором. Оптимизированы условия проведения реакции этерификации. Методика применена для анализа образцов питьевой воды

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2.
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   О-62


   
    Определение карбонильных соединений в питьевой воде методом газовой хроматографии в виде пентафторфенилгидразонов [] = The determination of carbonyls compounds in drinking water by pentafluorophenylhidrazine derivatization and gas chromatography / В. Е. Кириченко, М. Г. Первова, Д. Л. Чижов, А. С. Назаров // Аналитика и контроль. - 2003. - Т. 7, N 3. - 248-255: табл., граф. - Библиогр. : с. 254-255 (33 назв.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Предложена методика определения карбонильных соединений в водных средах, сочетающая перевод их в пентафторфенилгидразоны, экстракцию толуолом и газохроматографический анализ с электронозахватным детектором. Проведено масс-спектрометрическое исследование пентафторфенилгидразонов альдегидов и кетонов

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3.
Инвентарный номер: нет.
   
   Л 94


   
    Люминесцентные свойства некоторых n-арил-з-аминопропионовых кислот и их применение для определения меди(II) в питьевой и сточной воде = Luminiscent Properties of Several N-Aryl-3-Aminopropionic Acids and Their Application for Determination of Copper(II) in Drinking and Waste Water_ [] / Н. В. Печищева, Е. В. Осинцева, Л. К. Неудачина, Ю. Г. Ятлук, Л. И. Леонтьев, К. Ю. Шуняев, А. А. Вшивков // Докл. АН. - 2006. - Т. 408, № 2. - С. 199-203. - Библиогр.: с. 203 (10 назв.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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4.
Инвентарный номер: нет.
   
   К 29


   
    Каталитическая активность дендритных осадков серебра, полученных электролизом из водного раствора и нитратного расплава [] = Catalytical activity of the dendrite precipitates of silver obtained by electrolysis from water solution and nitrate melt / С. Л. Хохлов, Л. А. Петров, И. Б. Мурашова, И. В. Зотин, А. П. Храмов // Расплавы. - 2003. - N 2. - 61-67: табл., фот. - Библиогр. : с. 67 (7 назв.) . - ISSN 0235-0106
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Разработан способ приготовления катализаторов парциального окислительного дегидрирования спиртов на основе электролитического серебряного порошка, полученного из водного раствора, а также - на основе дендритных волокон серебра, осажденных из нитратного расплава. На примере синтеза глиоксаля из этиленгликоля проведено сравнение параметров каталитической активности новых катализаторов. Наиболее активным в процессах окисления оказался образец, для приготовления которого были использованы волокнистые осадки серебра, полученные из расплава. При этом самое высокое содержание глиоксаля в растворе и самую малую концентрацию остаточного этиленгликоля обеспечивают катализаторы на основе дендритов серебра, осажденных из водного раствора. Показатели новых серебряных катализаторов превышают данные технической характеристики стандартного промышленного катализатора марки Д53М

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5.
Инвентарный номер: нет.
   
   W 31


   
    Water-soluble 2-aminomethylidene-1,3-dicarbonyl compounds as new chalcogenide colloidal stabilizers [Electronic resource] / D. N. Bazhin, Yu. S. Kudyakova, T. I. Gorbunova, N. S. Kozhevnikova, N. S. Suntsov, Ya. V. Burgart, A. A. Rempel, G. N. Chupakhin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2013. - Vol.49, №3. - P315-320. - Библиогр.: с. 320 (21 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
NITROGEN ATOM -- N,N-DIMETHYLETHANE-1,2-DIAMINE -- CADMIUM
Аннотация: Reactions of 2-ethoxymethylidene derivatives of 1,3-dicarbonyl compounds with N,N-dimethylethane-1,2-diamine gave a number of 2-[(2-dimethylaminoethyl)amino]methylidene-1,3-dicarbonyl compounds which were subjected to regioselective quaternization at the tertiary nitrogen atom with methyl iodide. The resulting quaternary ammonium salts inhibited aggregation of cadmium and zinc sulfide sols in aqueous medium

\\\\expert2\\NBO\\Russian Journal of Organic Chemistry\\2013, 49, (3), 315-320.pdf
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6.
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   T 44


   
    Thermal stability of new sorption materials based on polysiloxanes / L. K. Neudachina, A. Y. Golub, E. M. Gorbunova, Yu. G. Yatluk // Glass Physics and Chemistry. - 2011. - Vol.37, №6. - С. 603-612
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
THERMAL STABILITY -- THIOCARBAMOYLATED POLYSILOXANES -- SILOXANE MATRIX
Аннотация: The thermal stability of the unmodified, aminated, and thiocarbamoylated polysiloxanes has been studied. The siloxane matrix is stable in the temperature range up to 800°C. For the first time, mass spectrometry has been applied to the analysis of the composition of the gaseous products of thermal decomposition of the studied polysiloxanes. It has been shown that, in the process of thermal decomposition, the terminal functional groups are detached and oxidized. Water, ammonia, nitrogen, carbon, and sulfur (in the case of thiourea-modified sorbent) oxides are formed predominantly. The quantitative removal of functional groups during heating up to 800°C has been confirmed by IR spectroscopy. A mechanism of thermal decomposition of polysiloxane xerogels has been proposed. It has been found that adsorption of platinum increases the thermal stability of the samples

\\\\Expert2\\nbo\\Glass Physics and Chemistry\\2011, V. 37, N 6, P.603-612.pdf
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7.
Инвентарный номер: нет.
   
   T 44


   
    The first cubane-like complex of copper based on N -carboxyethyl-tris(hydroxymethyl)aminomethane: Synthesis and crystal structure [Electronic resource] / A. V. Pestov, A. V. Virovets, N. V. Podberezskaya, Yu. G. Yatluk // Russian Journal of Coordination Chemistry. - 2008. - Vol. 34, № 1. - P1-7. - Bibliogr. : p. 7 (9 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The interaction of acrylic acid with tris(hydroxymethyl)aminomethane (I) was studied. A simple method was suggested for preparing N-carboxyethyl-tris(hydroxymethyl)aminomethane (homotricin) (II). On the basis of compound II, the 1:1 Cu complex, [Cu(OCH2C(CH2OH)2NHCH2CH2COO)]4·nH2O (n = 4–11.25) (III), which is alkoxycarboxylate, was synthesized. The crystal structure of III was found to correspond to a cubane-like tetranuclear cluster (an automated Bruker X8Apex diffractometer with CCD detector (MoK radiation, graphite monochromator, v = 1.11°-27.5°), 8016 reflections, space group P , a = 12.5573(3), b = 19.1012(4), c = 21.2903(5) A, a = 80.7770(10)°, beta = 75.7430(10)°, y = 75.2260(10)°, V = 4761.62(19) A3, p(calcd.) = 1.704 g/cm3, Z = 4). The crystals are unstable due to the large number of water molecules

\\\\Expert2\\nbo\\Russian Journal of Coordination Chemistry\\2008, v. 34, N. 1, p.1.pdf
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8.
Инвентарный номер: нет.
   
   T 44


   
    The epithermal gold-telluride Kochbulak deposit (Uzbekistan) [Text] / V. A. Kovalenker, Yu. G. Safonov, V. B. Naumov, V. L. Rusinov // Geology of Ore Deposits. - 1997. - Vol. 39, № 2. - P107-128. - Bibliogr. : p. 128 (42 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
DEPOSIT -- EPITHERMAL GOLD-TELLURIDE KOCHBULAK DEPOSIT -- KOCHBULAK DEPOSIT -- VOLCANIC SEQUENCE -- PORPHYRY DIKES
Аннотация: The Paleozoic epithermal gold-telluride Kochbulak deposit is situated on the northern slope of the Kurama Range in the central Tien Shan (Uzbekistan). The deposit is located within an andesite-dacite volcanic sequence (C2-3) intruded by subalkaline granodiorite and granosyenite porphyry dikes (C3-P1). The ore-forming system of the deposit originated and evolved during the orogenic uplift associated with aerial volcanism and emplacement of porphyritic granitoids. The Kochbulak deposit contains a great diversity of ore-forming sulfides, sulphosalts, tellurides, and selenides, several of which were first found there. The deposit has features of epithermal mineralization of both the adularia-sericite and acid-sulfate genetic types and mesothermal gold mineralization. The deposit consists of high- and low-angle veins and ore-bearing breccia pipes. The pipe-shaped bodies and veins differ in ore, gangue, and metasomatic mineral assemblages. The ore bodies hosted by explosive-hydrothermal breccias contain goldfieldite, famatinite, luzonite, enargite, diaspore, and pyrophyllite and, therefore, have pronounced features of epithermal mineralization of the acid-sulfate type. The ore veins show evidence of deeper formation and are associated with quartz-carbonate-sericite wall rock alteration. Our study of mineral assemblages, fluid inclusions, sulfur, oxygen, and hydrogen isotopes, and thermodynamic calculations show that the Kochbulak deposit was formed during a cyclic multistage process with periodic alternation of sealing along with tectonic and explosive opening of the fluid channel ways. The ore-forming process is subdivided into the preore, I to III ore, and postore stages related to fracture opening. Three types of solutions took part in the formation of gold-sulfide-sulphosalt-telluride mineralization. They were distinct in temperature, composition, salinity, and proportion of meteoric and magmatic water and other volatile components. The temperature generally decreased from 465°C to <100°C, and slightly increased at the beginning of each stage of the ore-forming process. Pressure, salinity, ion and gas composition of solutions, and the oxygen isotope composition of water varied as well. The deposition of gold-productive mineral assemblages was caused by changes in pH, Eh, activities of S2, O2, and Te2. The recurrence of these changes and repeated mineral deposition within the same depth intervals formed bodies very rich in ore components. The above-mentioned data suggest the Kochbulak deposit represents a particular type of gold-telluride mineralization, which originated within a wide range of physicochemical conditions at hypabyssal to subsurface depths.????

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9.
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    Synthesis, characterization, and in vitro assessment of cytotoxicity for novel azaheterocyclic nido-carboranes – Candidates in agents for boron neutron capture therapy (BNCT) of cancer / M. V. Varaksin, L. A. Smyshliaeva, V. L. Rusinov [et al.] // Tetrahedron. - 2021. - Vol. 102. - P132525
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
AZAHETEROCYCLES -- BNCT -- CYTOTOXICITY -- CARBORANES
Аннотация: A series of novel water-soluble azaheterocyclic derivatives of nido-carborane bearing quinoxaline, 2H-imidazole or 1,2,4-triazine moieties were first synthesized in 82–91% yields. The structures of these boron-enriched compounds were confirmed by the data of NMR, IR spectroscopy, and mass spectrometry. To access the toxicity level for these organoboron compounds, the cytotoxicity indexes (IC50) were determined using by the MTT test on both human glioblastoma cell A-172 (IC50 = 150–243 μM) and human embryonic lung cells (IC50 = 424–944 μM) lines. The obtained preliminary results from in vitro analysis enable the synthesized water-soluble azaheterocyclic carboranes to be considered as challenging candidates in the design of agents for boron-neutron capture therapy (BNCT) of malignant tumors.

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10.
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    Synthesis of δ-Valerolactone Using Stable Hydrogen Peroxide Derivatives / Y. V. Solovyova, A. V. Pestov, I. S. Puzyrev [et al.] // Russian Journal of Organic Chemistry. - 2022. - Vol. 58, № 4. - P480-483
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The efficiencies of hydrogen peroxide derivatives in the Baeyer–Villiger oxidation of cyclopen­tanone to δ-valerolactone have been compared. The oxidants used were hydrogen peroxide in acetic, formic, or trifluoroacetic acid, magnesium and sodium monoperoxyphthalates, cumene hydroperoxide, and tert-butyl hydroperoxide. The oxidation was carried out in water, aqueous methanol, and water–ethyl acetate. Sodium and magnesium monoperoxyphthalates turned out to provide high conversion and selectivity under mild conditions.

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11.
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    Synthesis of water-soluble gadolinium(iii) complexes based on 5-aryl-2,2′-bipyridine with a DTTA residue in position C6′ / A. P. Krinochkin, D. S. Kopchuk, Y. K. Shtaitz [et al.] // AIP Conference Proceedings. - 2021. - Vol. 2388, № 1. - Ст. 030017
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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12.
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    Synthesis of new water-soluble polyarene-substituted naphtho[1,2-d]oxazole-based fluorophores as fluorescent dyes and biological photosensitizers / N. V. Slovesnova, A. S. Minin, O. S. Taniya [et al.] // Dyes and Pigments. - 2022. - Vol. 204. - Ст. 110410
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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13.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis and properties of water-soluble 2-aminomethylidene derivatives of 1,3-dicarbonyl compounds [Electronic resource] / D. N. Bazhin, Yu. S. Kudyakova, T. I. Gorbunova, Ya. V. Burgart, A. Ya. Zapevalov, V. I. Saloutin // Russian Journal of General Chemistry. - 2013. - Vol.83, №7. - С. 1330-1335
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
SYNTHESIS -- N,N-DIPHENYLGUANIDINE -- AMINOMETHYLIDENE
Аннотация: A series of [(2-dimethylamino)ethylamino]methylidene-1,3-dicarbonyl compounds was synthesized for the first time starting from the corresponding 2-ethoxymethylidene derivatives and N,N-dimethylethylenediamine. It was shown that further alkylation of aminomethylidene derivatives with methyl iodide occurs regioselectively at the tertiary nitrogen atom. Quaternization products obtained exhibit high corrosion inhibition of mild steel in hydrochloric acid medium

\\\\expert2\\nbo\\Russian Journal of General Chemistry\\2013, V. 83, N 7, p. 1330–1335.pdf
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14.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis and properties of epoxy-anhydride polymers modified with polyfluorolakyl-substituted oxiranes in the course of curing [Electronic resource] / M. S. Fedoseev, L. F. Derzhavinskaya, V. I. Karmanov, D. N. Bazhin, A. Ya. Zapevalov, T. I. Gorbunova, V. I. Saloutin // Russian Journal of Applied Chemistry. - 2010. - Vol. 83, № 4. - P723-727 : табл., граф. - Bibliogr. : p. 723-727 (24 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
POLYMERS -- EPOXY-ANHYDRIDE POLYMERS -- OXIRANES -- POLYFLUOROLAKYL-SUBSTITUTED OXIRANES -- CURING
Аннотация: Epoxy-anhydride polymers based on N,N,O-triglycidyl-p-aminophenol and isomethyltetrahydrophthalic anhydride were synthesized in the presence of new active modifiers, polyfluoroalkyl glycidyl ethers. The kinetics of the reactions of the modifiers with the anhydride were studied by differential scanning calorimetry and IR spectroscopy. The physicomechanical characteristics, glass transition points, and water absorption of the polymers were determined.

\\\\Expert2\\nbo\\Russian Journal of Applied Chemistry\\2010, v. 83, N 4, p.723-727.pdf
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15.
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    Synthesis and physicochemical and catalytic properties of composites in the Sio2–Zro2 system / A. N. Murashkevich, O. A. Alisienok, E. S. Novik [et al.] // Inorganic materials. - 2020. - Vol. 56, № 4. - P430-436
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ACID-BASE PROPERTIES -- CATALYSIS -- COMPOSITE -- SILICA -- SPECIFIC SURFACE AREA -- ZIRCONIA
Аннотация: Using coprecipitation, a sol–sol method, and molecular layering, we have synthesized SiO2–ZrO2 composites with SiO2 : ZrO2 ratios from 1 : 1 to 9 : 1 and a large specific surface area, which increases with growth silicon-containing component concentration. Using adsorption of Hammett indicators, we have assessed the concentration of acid–base centers in the pK range 1.3–9.6, which has been shown to vary from 68 to 160 μmol/g. Elemental analysis and IR spectroscopy data have demonstrated the presence of not only water but also nitrate ions and carbon dioxide on the surface of the samples. It has been shown that the use of nanoparticulate SiO2–ZrO2 oxides as heterogeneous catalysts—promoters for (2S,4R)-4-hydroxyprolyl-(S)-1-phenylethylamine trifluoroacetate, a chiral inducer in the asymmetric Biginelli reaction, makes it possible to raise ee (enantiomeric excess) from 39 to 68% and the reaction yield from 29 to 55%.

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16.
Инвентарный номер: нет.
   


    Joy, M. N.
    Suzuki coupling in water: facile synthesis of novel coumarins / M. N. Joy, G. V. Zyryanov, S. Santra // Modern synthetic methodologies for creating drugs and functional materials (MOSM 2023) : book of abstracts of the 7th International conference. - Perm, 2023. - С. 72
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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17.
Инвентарный номер: нет.
   


   
    Substituted 2-(2-hydroxyphenyl)–3H-quinazolin-4-ones and their difluoroboron complexes: Synthesis and photophysical properties / T. N. Moshkina, E. V. Nosova, V. N. Charushin [et al.] // Spectrochimica acta part A: molecular and biomolecular spectroscopy. - 2021. - Vol. 252. - P119497
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ESIPT -- FLUORESCENCE -- O-LIGAND -- BF2-COMPLEX2-(2-HYDROXYPHENYL)–3H-QUINAZOLIN-4-ONES
Аннотация: 2-(2-Hydroxyphenyl)–3H-quinazolin-4-ones with diverse substituents at phenol ring and their six-membered difluoroboron complexes have been synthesized via few-stage approach. The photophysical properties of target compounds have been investigated in two solvents as well as in the solid state. The nature of substituents and substitution point in the phenol moiety of ligands and resulting BF2-complexes on the photophysical properties of dyes have been explored. The complex bearing two t-Bu groups proved to be the most emissive in solid state, whereas its 5-methoxy and 4-diethylamino counterparts possess strong emission in toluene solution. The dyes exhibited large Stokes shifts which was attributed to excited state intramolecular proton transfer (ESIPT). Additionally, fluorescence of quinazolinones in the mixture of THF/water was studied. All ligands demonstrated emission enhancement with increase of water fraction which was due to aggregation induced emission.

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18.
Инвентарный номер: нет.
   
   S 10


   
    S-N(H) reactions of pyrazine N-oxides and 1,2,4-triazine 4-oxides with CH-active compounds [Electronic resource] / D. N. Kozhevnikov, I. S. Kovalev, A. M. Prokhorov, V. L. Rusinov, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2003. - Vol. 52, № 7. - P1588-1594
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Nucleophilic substitution of hydrogen in pyrazine N-oxides under the action of CH-active compounds requires activation with acylating agents. This activation facilitates aromatization of intermediate H adducts via elimination of the acid residue to form substituted pyrazines. More electrophilic 1,2,4-triazine 4-oxides react with carbanions derived from CH-active compounds without additional activation according to a scheme, which has previously been unknown for azine N-oxides. This scheme involves aromatization of H adducts through elimination of water by the E1cb mechanism. The reaction products occur in DMSO-d6 solutions predominantly as 6-methylene-1,6-dihydropyrazines and 5-methylene-4,5-dihydro-1,2,4-triazines.??nucleophilic substitution of hydrogen - 1,2,4-triazine 4-oxide - pyrazine 1-oxide - carbanion - CH-active compounds??

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2003, 52 (7), 1588.pdf
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19.
Инвентарный номер: нет.
   
   R 74


   
    Role of polar solvents for the synthesis of pillar[6]arenes [Electronic resource] / S. Santra, I. S. Kovalev, D. S. Kopchuk, G. V. Zyryanov, A. Majee, V. N. Charushin, O. N. Chupakhin // RSC Advances. - 2015. - Vol. 5, № 126. - С. 104278-104282. - Bibliogr. : p. 104282 (26 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
HOST-GUEST COMPLEXATION -- WATER CHANNELS -- HIGH-YIELD SYNTHESIS
Аннотация: An efficient procedure for the synthesis of pillar[6]arenes has been developed. The procedure involves the condensation of 1,4-dialkoxybenzenes and paraformaldehyde in the presence of a catalytic amount of H2SO4 or BF3 center dot OEt2 in polar solvent media (acetonitrile, ethyl alcohol, acetone etc.). In all cases the interaction afforded pillar[6]arenes in high yields.

\\\\expert2\\nbo\\RSC Advances\\2015. Vol. 5, N 126. P. 104278-104282.pdf
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20.
Инвентарный номер: нет.
   
   R 44


   
    Replacement of dimethylpyrazolyl group in 1,2,4,5-tetrazines by aliphatic alcohols and water [Electronic resource] / R. I. Ishmetova, N. I. Latosh, I. N. Ganebnuikh, N. K. Ignatenko, S. G. Tolshchina, G. L. Rusinov // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2009. - Vol. 45, № 7. - P1102-1107
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Reactions of 3,6-bis(4-R-3,5-dimethyl-1H-pyrazol-1-yl)-1,2,4,5-tetrazines and 3-amino-6-(3,5-dimethyl-1H-pyrazol-1-yl)-1,2,4,5-tetrazines with aliphatic alcohols and water in the presence of a base involved replacement of the dimethylpyrazolyl group and resulted in the formation of mono- and dialkoxy-1,2,4,5-tetrazines and 6-substituted 3-hydroxy-1,2,4,5-tetrazines. Dissociation constants of the latter were determined by potentiometric titration.

\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2009, 45 (7), 1102.pdf
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