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   У 76


    Усовершенствованный синтез билдинг-блоков для получения краун-эфиров c пиридиновыми или пиперидиновыми фрагментами = Convenient synthesis of building-blocks for pyridine/piperidine-decorated crown ethers / М. Б. Навроцкий, Е. Б. Горбунов, А. С. Бабушкин, Е. А. Ручко, Г. Л. Русинов, В. Н. Чарушин, И. А. Новаков // Макрогетероциклы. - 2014. - Т. 7. - С. 18-22. - Библиогр.: с. 22 (19 назв)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Дескрипторы: 2-VYNYLPYRIDINE -- EPOXIDATION -- PIPERIDINE
Аннотация: A convenient way to 1-(pyridin-2-yl)ethan-1,2-diol, 2-(oxiran-2-yl)pyridine and two diastereomeric forms of 1-(piperi-din-2-yl)ethan-1,2-diol, valuable building-blocks for the synthesis of functionalized crown ethers, has been developed. It is based on the Wagner oxidation or NBS-mediated epoxydation of 2-vinylpyridine, and the Schwenk-Papa reduction of 1-(pyridin-2-yl)ethan-1,2-diol, accompanied by fractional crystallization of a diastereo-meric mixture of the target produc

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   Р 25

    Ратнер, В. Г.
    Окисление фторалкилзамещенных аллиловых спиртов - синтез фторсодержащих альфа,бета-эпоксикетонов [] = Oxidation of fluoroalkyl-substituted allylic alcohols: A synthesis of fluorinated alpha,beta-epoxyketones / В. Г. Ратнер, К. И. Пашкевич // Изв. АН. Сер. Химическая. - 1996. - N 3. - С. 680-683 . - ISSN 0002-3353

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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   К 86


    Ксерогель диоксида титана, модифицированный порошковой целлюлозой в реакции окисления триме-тилгидрохинона [] = Titanium dioxide xerogel modified with powder cellulose in oxidation of trimethylhydroquinone / А. Б. Шишмаков, Ю. В. Микушина, М. С. Валова, О. В. Корякова, Л. А. Петров // Журнал прикладной химии. - 2007. - Т. 80, № 12. - С. 2029-2032

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Разработан метод модификации кссрогеля диоксида титана сведением порошковой целлюлозы на стадии, предшествующей гидролизу тетрабутоксититана. Полученные каталитические системы на основе нового материала исследованы в модельном жидкофазном каталитическом процессе окислительного дегидрирования триметилгидрохинона кислородом воздуха

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   А 43


    Активность гидрогеля диоксида циркония в реакции жидкофазного окисления 2,3,5-триметил-1,4-гидрохинона =The activity of zirconium (IV) oxide hydrogel in liquid phase oxidation of 2.3.5-threemetyl-1.4-hydroquinon [] / О. В. Кузнецова, В. Г. Харчук, О. В. Корякова, Л. А. Петров // Аналитика и контроль. - 2006. - Т. 10, № 2. - С. 126-130. - Библиогр.: с. 130 (10 назв.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Методом начальных скоростей изучено влияние гидрогеля оксида циркония (IV) на процесс жидкофазного окисления дегидрирования 2,3,5-триметил-1,4-гидрохинони в водно-метанольном растворе. Отмечено, что введение гидрогеля ингибирует реакцию, зависимость начальных скоростей от содержания геля в реакции имеет нелинейный характер. Методом ИК спектроскопии изучены ассоциативные взаимодействия между ингредиентами реакции

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   W 20


    Wall Rock Metasomatism and Formation Conditions of the Silver-Polymetallic Bol'shoi Kanimansur Deposit (Tadjikistan) [Text] / O. V. Rusinova, V. L. Rusinov, E. D. Syngaevskii , L. I. Bochek, M. I. Lapina, Yu. V. Vasyuta // Geology of Ore Deposits. - 2001. - Vol. 43, № 5. - P386-405. - Bibliogr. : p. 405 (20 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
SILVER-POLYMETALLIC DEPOSIT -- CARBON -- METASOMATIC TRANSFORMATIONS -- REGIONAL MAGMATISM
Аннотация: Products of the hydrothermal alteration of rocks and vertical zonality at the Kanimansur silver-polymetallic deposit (Tadjikistan) have been studied. On the basis of these studies, physicocochemical conditions of metasomatism and ore formation were reviewed. Condensed carbonaceous matter in wall rock metasomatites and ores were found and carbon isotopic composition of this carbonaceous matter and composition of gases in open pores in rocks of the deposit were analyzed. As a result of geological observations, analysis of mineral parageneses, compositions of minerals, and chemistry of wall rock alteration, the following four stages of the hydrothermal process were distinguished: autometasomatic, propylitic, preore chlorite-sericite, and synore. Mineral geothermometers were used to estimate the temperatures of metasomatism, which varied within the range 200-250°C for all stages except for the autometasomatic stage (450-500°C). The formation of unhydrated light micas, quartz, and highly ferruginuous chlorites was related to acid preore metasomatism. The stability of these chlorites testifies to a slight increase in the acidity of solutions during the preore stage (pH not less than 3.5). The wall rock metasomatites and sulfide ores are characterized by a relatively rare occurrence of pyrite due to a low activity of the sulfide sulfur during hydrothermal alterations (logaS2 = -7...-10). The low activity of the sulfide sulfur is confirmed by the fact that iron is tied in a highly ferruginuous chlorite. At upper ore levels, even zinc is tied in chlorite. This testifies to a much greater aS2 /aO2 value. Judging by the participation of carbonaceous matter in the process, ore components were deposited due to a local increase in the alkalinity at the ore-forming stage and oxidation of reduced fluids. The established features of metasomatic transformations, are related to particulars of the regional magmatism.????

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   U 62


    Unusual heterocyclization of chalcone podands with 3-amino-1,2,4-triazole / I. G. Ovchinnikova, M. S. Valova, E. G. Matochkina, M. I. Kodess, A. A. Tumashov, P. A. Slepukhin, O. V. Fedorova, G. L. Rusinov, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №5. - С. 965-974

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
TEMPLATE SYNTHESIS -- CHALCONE PODAND -- CROWN ETHERS
Аннотация: A new type of intramolecular cyclization of 1,5-bis[2-(E-3-oxo-3-phenylprop-1-enyl)-phenoxy]-3-oxapentane with 3-aminotriazole promoted by potassium ions was discovered. A cascade mechanism for the formation of crownophane with 4,7-dihydro[1,2,4]triazolo[1,5-a]-pyrimidine fragment was suggested. Effects of oligooxyethylene fragment of the chalcone podand and acid-base catalysis on the selectivity of the cyclocondensation processes and degree of oxidation of triazolopyrimidine fragments were studied. The product structures were confirmed by IR, 1H and 13C NMR spectroscopy and X-ray diffraction study

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2011, 60 (5), 965-974.pdf
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   T 64


    Titanium dioxide xerogel modified with powder cellulose in oxidation of trimethylhydroquinone [Electronic resource] / A. B. Shishmakov, Yu. V. Mikushina, M. S. Valova, O. V. Koryakova, L. A. Petrov // Russian Journal of Applied Chemistry. - 2007. - Vol. 80, № 12. - P2107-2110. - Библиогр. : с. 2110 (17 назв.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A procedure was developed for modification of titanium dioxide xerogel by addition of powder cellulose in the stage preceding hydrolysis of tetramethoxytitanium. The resulting catalytic systems based on the new material were studied in a model liquid-phase catalytic process of oxidative dehydrogenation of trimethylhydroquinone with atmospheric oxygen.

\\\\Expert2\\nbo\\Russian Journal of Applied Chemistry\\2007, v. 80, N 12, p.2107.pdf
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   T 45


    Thiocarbamoyl chitosan: Synthesis, characterization and sorption of Au(III), Pt(IV), and Pd(II) [Text] / S. YU. Bratskaya, A. Yu. Ustinov, Yu. A. Azarova, A. V. Pestov // Carbohydrate Polymers. - 2011. - Vol. 85, № 4. - P854-861 : ил. - Bibliogr. : p. 860-861 (39 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Here we suggest a new method of chitosan sulfur derivatives (thiocarbamoylchitosans, TC-chitosans) synthesis via reaction in eutectic two-component system ammonium rodanide–thiourea that allows significant increase of substitution degrees at the reduced time and reagent consumption as compared to conventional synthetic procedures. The sorption properties of TC-chitosans with substitution degrees (DS) from 0.4 to 0.9 toward Au(III), Pt(IV), Pd(II) ions were studied in chloride solutions, including systems with 10 to 1000-fold excess of Fe(III), Cu(II), and Zn(II) over the precious metal ions content. The sorption capacities of TC-chitosans increase with DS and change in the row: Au(III) Pd(II) Pt(IV) ? Cu(II) Fe(III) Zn(II). The maximum sorption capacities of TC-chitosan with DS 0.9 for Pt(IV), Pd(II), and Au(III) were 1.24 mmol/g, 3.43 mmol/g, and 3.81 mmol/g, respectively. Characterization of precious metals oxidation states by the XPS method after the sorption on TC-chitosan revealed that the platinum and gold recovery occurred with reduction of Au(III) to Au(I)/Au(0) and Pt(IV) to Pt(II)????

\\\\Expert2\\nbo\\Carbohydrate Polymers\\2011, v. 85, p.854.pdf
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   S 98


    Synthesis, structure and redox properties of new cobalt(II) and nickel(II) complexes with 6-ferrocenyl-2,2?-bipyridyl [Text] / A. Golberg, M. Kiskin, V. Grinberg, S. Kozyukhin, A. S. Bogomyakov, I. A. Utepova, A. A. Sidorov, O. N. Chupakhin, I. L. Eremenko // Journal of Organometallic Chemistry. - 2011. - Vol. 696, № 13. - P2607-2610. - Bibliogr. : p. 2610 (17 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: New ionic complexes [ML2(MeCN)2]•2Otf (M = Co or Ni; L = 6-ferrocenyl-2,2?-bipyridyl) were synthesized and characterized by single-crystal X-ray diffraction. Cyclic voltammograms of the compounds [ML2(MeCN)2]•2Otf in CH2Cl2 show good cycle stability over 100 cycles in the quasi-reversible oxidation potential range (from 0.25 to 0.5 V).????

\\\\Expert2\\nbo\\Journal of Organometallic Chemistry\\2011, v.696, p.2607.pdf
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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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   S 98


    Synthesis of stereoisomeric 4-(2-methylindolin-1-yl)- and 4-(2-methylindol-1-yl) derivatives of glutamic acid [Electronic resource] / V. P. Krasnov, A. Yu. Vigorov, I. A. Nizova, A. N. Grishakov, N. G. Evstigneeva, M. I. Kodess // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2004. - Vol. 53, № 6. - P1327-1330

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reaction of dimethyl (2S,4RS)-N-phthaloyl-4-bromoglutamate with 2-methylindoline afforded diastereomeric 4-(2-methylindolin-1-yl)-(S)-glutamic acid derivatives, whose oxidation gave rise to 4-(2-methylindol-1-yl)-(S)-glutamic acid derivatives

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2004, 53 (6), 1327.pdf
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12.

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    Synthesis of novel [1,2,4]triazolo[1,5-b][1,2,4,5]tetrazines and investigation of their fungistatic activity / A. V. Korotina, S. G. Tolshchina, R. I. Ishmetova [et al.] // Beilstein Journal of Organic Chemistry. - 2022. - Vol. 18. - P243-250
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A series of novel [1,2,4]triazolo[1,5-b][1,2,4,5]tetrazines has been synthesized through oxidation reaction of the corresponding 3,6-disubstituted 1,2,4,5-tetrazines bearing amidine fragments. It is shown that the heterocyclic systems obtained can be modified easily at C(3) position in the reactions with aliphatic alcohols and amines. Also, the reactivity of [1,2,4]triazolo[1,5-b][1,2,4,5]tetrazines towards CH-active compounds has been studied. The obtained triazolo[1,5-b]annulated 1,2,4,5-tetrazines proved to be active in micromolar concentrations in vitro against filamentous anthropophilic and zooanthropophilic dermatophyte fungi (Trichophyton, Microsporum and Epidermofiton), which cause skin and its appendages (hair, nails) diseases.

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13.

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   S 98


    Synthesis of new fluorine-containing pyrazolo[3,4-b]pyridinones [Electronic resource] / K. S. Rodygin, S. A. Rubtsova, P. A. Slepukhin, A. V. Kuchin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2011. - Vol.60, №4. - С. 733-745. - Bibliogr. : p. 745 (28 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
MICROWAVE IRRADIATION -- AMINOPYRAZOLES -- ARYLSULFANYL(DIFLUORO)METHYL GROUP
Аннотация: Methods for the synthesis of 4 R 6,7 dihydro 1H pyrazolo[3,4 b]pyridin 6 ones (R = CF2SAr and 4 CFHSAr) were developed. The derivatives with R = CF2SAr were ob tained by both heterocyclization of 1 substituted 5 aminopyrazoles with ethyl 4,4 difluoro 3 oxo 4 phenylsulfanylbutanoate and replacement of the Br atom in 4 bromodifluoromethyl 6,7 dihydro 1H pyrazolo[3,4 b]pyridin 6 ones by sodium arenethiolates. The fragment 4 CF HSAr was introduced by replacement of the Cl atom in 4 chlorofluoromethyl 6,7 dihydro 1H pyrazolo[3,4 b]pyridin 6 ones by sodium arenethiolates. Oxidation of 4 CF2SPh 6,7 dihydro 1H pyrazolo[3,4 b]pyridin 6 ones gave the corresponding sulfoxides; their structures were con firmed by X ray diffraction data

\\\\expert2\\NBO\\Russian Chemical Bulletin\\2011, 60 (4), 733-745.pdf
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14.

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   K 96

    Kuznetsov, V. A.
    Synthesis of epsilon-caprolactone with stable hydrogen peroxide adducts / V. A. Kuznetsov, M. G. Pervova, Yu. G. Yatluk // Russian Journal of Applied Chemistry. - 2013. - Vol.86, №2. - С. 176-181. - Библиогр.: с. 181 (16 ref.)

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
CYCLOHEXANONE -- E-CAPROLACTONE -- HEXAFLUOROISOPROPANOL
Аннотация: Oxidation of cyclohexanone to ɛ-caprolactone with stable industrially manufactured hydrogen peroxide derivatives: adduct with urea (urea hydrogen peroxide), sodium perborate, sodium percarbonate (Persol), magnesium monoperphthalate (Dismozon) was studied. Oxidation with urea hydrogen peroxide is the most efficient in hexafluoroisopropanol in the case of preliminary removal of urea in the form of an oxalate. Oxidation with sodium perborate and percarbonate provides high yields in trifluoroacetic acid. The lowest cost process consists in interaction with sodium monoperphthalate (Persol and phthalic anhydride) in an aqueous medium

\\\\expert2\\NBO\\Russian Journal of Applied Chemistry\\2013, v. 86, N 2, p.176.pdf
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15.

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   S 98


    Synthesis of 4-(thien-2-yl)-substituted coumarins through Lewis acid catalyzed Michael addition of thiophenes to 3-benzoylcoumarins followed by oxidation [Electronic resource] / R. A. Irgashev, A. A. Karmatsky, G. L. Rusinov, V. N. Charushin // Tetrahedron Letters. - 2014. - Vol.55, №26. - С. 3603-3606

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
THIOPHENES -- 3-BENZOYLCOUMARINS -- Lewis acid
Аннотация: 3-Benzoyl-4-(thien-2-yl)coumarins have been obtained in good yields according to the SNH addition–oxidation protocol, involving the diastereoselective addition of thiophenes at C-4 of 3-benzoylcoumarins under BBr3 catalysis, followed by oxidation of the intermediate 3,4-trans-3-benzoyl-4-(thien-2-yl)-3,4-dihydrocoumarins with DDQ. This two-step procedure can be regarded as nucleophilic substitution of hydrogen (SNH) on the heterocyclic ring of coumarins

\\\\expert2\\nbo\\Tetrahedron Letters\\2014, v. 55, p. 3603.pdf
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16.

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   S 98


    Synthesis and Asymmetric Oxidation of (Caranylsulfanyl)-1H-imidazoles / M. Ya. Demakova, D. V. Sudarikov, S. A. Rubtsova, L. L. Frolova, A. V. Popov, P. A. Slepukhin, A. V. Kuchin // Helvetica Chimica Acta. - 2012. - Vol.95, №6. - С. 940-950

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
1H-IMIDAZOLES -- ASYMMETRIC OXIDATION -- X-RAY CRYSTALLOGRAPHY
Аннотация: For the first time 2-(cis-caran-4-ylsulfanyl)-1H-imidazole, 1-methyl-2-(cis-caran-4-ylsulfanyl)-1H-imidazole, and 2-(cis-caran-4-ylsulfanyl)-1H-benzimidazole (carane=3,7,7-trimethylbicyclo[4.1.0]heptane) were synthesized, and the asymmetric oxidation of these compounds was also carried out. It was shown that oxidation by the Bolm system and the modified system of Sharpless lead to corresponding sulfoxides with de values of 91–100%

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17.

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   S 98


    Synthesis and antitumour activity of 4-aminoquinazoline derivatives [Electronic resource] / G. N. Lipunova, E. V. Nosova, V. N. Charushin, O. N. Chupakhin // Russian Chemical Reviews. - 2016. - Vol. 85, № 7. - С. 759-793

ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
GROWTH-FACTOR RECEPTOR -- POTENT EGFR INHIBITORS -- TYROSINE KINASE INHIBITORS
Аннотация: Scieces of data on the synthesis and antitumour activity of 4-aminoquinazolines are summarized and analyzed. Key methods for the synthesis of these compounds are considered, primarily cyclocondensation of carboxylic acid derivatives, as well as the oxidation of quinazolines and the cyclization of disubstituted thioureas. Improvements of synthetic schemes for erlotinib, gefitinib and lapatinib, which are the best-known pharmaceuticals based on compounds of the title class, are also considered. Synthetic strategies and biological activities for new 4-aminoquinazoline derivatives that are EGFR-tyrosine kinase inhibitors, multiactive compounds, and labelled compounds for use as positron emission tomography (PET) imaging agents are discussed.

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18.

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   S 90


    Studyng of stability of polyoxometalate Mo132 in reactions of oxidation with oxyden and hydrogen peroxide [Text] / S. Y. Men'shikov, A. A. Ostroushko, S. G. Tolshchina, V. A. Vazhenin, Yu. V. Mikushina, V. Yu. Korotaev // II Международная конф. "Техническая химия. От теории к практике", посвящ. 25-лет. со дня основания Ин-та. техн. химии УрО РАН, Пермь, 17-21 мая 2010 г. : сб. статей . - Пермь, 2010. - Т. 3. - P164-169 : рис., табл. - Библиогр.: с. 169 (4 назв.)

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Рубрики: ХИМИЧЕСКИЕ НАУКИ

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19.

Инвентарный номер: нет.

   S 90


    Studying the electronic structure of Cr (x) Ti(1-x) Se(2) by X-ray resonance and absorption spectroscopy [Text] / A. S. Shkvarin, Yu. M. Yarmoshenko, N. A. Skorikov, A. I. Merentsov, A. N. Titov, P. A. Slepukhin, D. E. Marchenko, M. Sperling // Journal of experimental and theoretical physics. - 2011. - Vol. 112, № 1. - P87-93. - Bibliogr. : p. 93 (19 ref.)

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Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Cr (x) Ti(1 - x) Se(2) (x = 0-0.83) solid solutions have been synthesized. Single crystals have been grown in the range of concentrations x = 0-0.83. Structural studies of samples have revealed that chromium atoms substitute titanium in the TiSe(2) matrix. The X-ray photoelectron spectra of the core levels, the resonance spectra of the valence bands in 1T-Cr (x) Ti(1 - x) Se(2), and the X-ray absorption spectra of titanium and chromium are studied. The titanium and chromium atoms are shown to have oxidation numbers of +4 and +3, respectively, in an identical octahedral environment. The local density of chromium states has been calculated. The results of the calculation agree well with the experimental data and indicate that the electronic 3d states of chromium substituting titanium in the matrix are spin-polarized and the density of chromium states is halfmetal magnet in behavior

\\\\Expert2\\nbo\\Journal of Experimental and Theoretical Physics\\2011, v.112, N 1, P. 87.pdf
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20.

Инвентарный номер: нет.

   S 89


    Structure and characteristics of chitosan cobalt-containing hybrid systems, the catalysts of olefine oxidation [Electronic resource] / A. V. Mekhaev, A. V. Pestov, L. S. Molochnikov, E. G. Kovaleva, M. G. Pervova, Yu. G. Yatluk, I. A. Grigor'ev, I. A. Kirilyuk // Russian Journal of Physical Chemistry A, Focus on Chemistry. - 2011. - Vol. 85, № 7. - P1155-1161. - Bibliogr. : p. 1160-1161 (18 ref.)

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Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Cobalt-containing hybrid organo-inorganic materials based on the chitosan-SiO2, chitosan-Al2O3, and chitosan-cellulose systems were obtained. The surface structure and processes that occur during the formation of metal-containing materials, the catalytic properties of which were studied in the oxidation reactions of alkene, were investigated by EPR spectroscopy using a stable pH-sensitive nitroxyl radical, 4-dimethylamino-2-ethyl-5,5-dimethyl-2-(pyridin-4-yl)-2,5-dihydro-1H-imidazole-1-oxyl, as the adsorbed probe molecules

\\\\Expert2\\nbo\\Russian Journal of Physical Chemistry A, Focus on Chemistry\\2011, V.85, N 7, p.1155.pdf
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