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Каталог книг и продолжающихся изданий
Сводный каталог иностранных периодических изданий, имеющихся в библиотеках УрО РАН
Сводный каталог отечественных периодических изданий, имеющихся в библиотеках УрО РАН
Каталог диссертаций и авторефератов диссертаций УрО РАН
Каталог препринтов УрО РАН (1975 г. - )
Имидж-каталог отечественных книг (до 2010 г.)
Имидж-каталог иностранных книг (до 2010 г.)
Алфавитно-предметный указатель (АПУ) ЦНБ УрО РАН
Публикации об УрО РАН
Изобретения уральских ученых
Интеллектуальная собственность (статьи из периодики)
Нанотехнологии
Демидовские премии
Гибель династии Романовых
История Урала
Личная библиотека С. В. Вонсовского
Книжная коллекция Шубиных
Труды Института высокотемпературной электрохимии УрО РАН
Труды Института истории и археологии УрО РАН
Труды сотрудников Института горного дела УрО РАН
Труды сотрудников Института органического синтеза УрО РАН
Труды сотрудников Института теплофизики УрО РАН
Труды сотрудников Института химии твердого тела УрО РАН
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Труды сотрудников ЦНБ УрО РАН
Публикации Черешнева В.А.
Публикации Чарушина В.Н.
Каталог библиотеки ИЭРиЖ УрО РАН
Электронная энциклопедия «Дискурсология»
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1.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Al-Ithawi W. K. A., Khasanov A. F., Valieva M. I., Baklykov A. V., Chistyakov K. A., Ladin E. D., Kovalev I. S., Nikonov I. L., Kim G. A., Platonov V. A., Kopchuk D. S., Wang Z., Zyryanov G. V.
Заглавие : (Mechano)synthesis of azomethine- and terpyridine-linked diketopyrrolopyrrole-based polymers
Место публикации : Chimica Techno Acta. - 2023. - Vol. 10, № 2. - С. 202310204
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): diketopyrrolopyrrole-based polymers--pd-catalyzed synthesis--mechanosynthesis
Аннотация: Three efficient synthetic approaches towards new azomethine- and terpyridine-containing 2,5-dihydropyrrolo[3,4-c]pyrrole-1,4-dione (diketopyrrolopyrrole, DPP) based polymers, such as P1 and P2, are reported. The first approach involves the Pd-catalyzed synthesis via two- or three-component Suzuki or Stille cross-coupling reaction in solution. The second approach involves Pd-catalyzed Suzuki cross-coupling reaction under ballmilling conditions. And, finally, the third approach involves Pd-free condensation reaction under ball-milling conditions. The newly obtained polymers exhibited absorbance around 700 nm and emission around 900 nm, and, thus, these polymers are considered to be NIR-fluorophores.
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2.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sharapov A. D., Fatykhov R. F., Khalymbadzha I. A., Santra S., Zyryanov G. V., Chupakhin O. N., Sharutin V. V., Ranu B. C.
Заглавие : Mechanochemical synthesis of coumarins via Pechmann condensation under solvent-free conditions: an easy access to coumarins and annulated pyrano[2,3-f] and [3,2-f]indoles
Место публикации : Green Chemistry. - 2022. - Vol. 24, № 6. - С. 2429-2437
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): a green protocol has been developed for the synthesis of simple coumarins and linear pyrano[2,3-f] and [3,2-f]indoles by the reaction of phenol derivatives with β-ketoesters under ball milling at ambient temperature in the presence of methanesulfonic acid as a mild acid catalyst. the significant advantages of this procedure are high yields, scalability, no use of hazardous acids or solvents, shorter reaction time, ambient temperature, low cost, and straightforward purification without column chromatography. this procedure is associated with high ecoscale metrics and a low e-factor. in contrast to traditional pechmann condensation procedures, the mechanochemical protocol leads to the synthesis of pyranoindoles with excellent regioselectivity and high yields.
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3.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Edilova Y. O., Burgart Y. V., Saloutin V. I., Bazhin D. N., Kudyakova Y. S., Kiskin M. A.
Заглавие : Expanding 1,2,4-triketone toolbox for use as fluorinated building blocks in the synthesis of pyrazoles, pyridazinones and β-diketohydrazones
Место публикации : Journal of fluorine chemistry. - 2022. - Vol. 253. - Ст.109932
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Fluorinated lithium β-diketonates bearing a methyl acetal group behave in the condensation reactions with hydrazines as trielectrophilic building blocks for the preparation of pyrazoles, pyridazinones and β-diketohydrazones. For the first time, solvent-induced regioisomeric and heterocyclic ring size-controlled formation was observed for 1,2,4-triketone analogues. Fluoroalkylated acetyl NH-pyrazoles or substituted 5-RF-pyrazoles were obtained from the acid-catalyzed cyclocondensation of lithium β-diketonates with (aryl)hydrazines in ethanol. In methanol solvent acetyl-containing 3-CF3-pyrazoles were isolated because of inverse nucleophilic attack of arylhydrazines. The use of aprotic acetonitrile in the condensation resulted in regioselective trifluorinated pyridazinones and fluorinated β-diketohydrazones formation via initial acetal fragment interaction with N,N-dinucleophile.
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4.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Khonina T. G., Tishin D. S., Larionov L. P., Dobrinskaya M. N., Antropova I. P., Izmozherova N. V., Osipenko A. V., Shadrina E. V., Nikitina E. Yu., Bogdanova E. A., Karabanalov M. S., Evstigneeva N. P., Kokhan M. M., Chupakhin O. N.
Заглавие : Bioactive silicon-iron-containing glycerohydrogel synthesized by the sol-gel method in the presence of chitosan
Место публикации : Russian chemical bulletin. - 2022. - Vol. 71, № 11. - С. 2342-2351
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A novel biologically active nanocomposite glycerohydrogel based on two biocompatible precursors, silicon and iron glycerolates, was synthesized by the sol—gel method in the presence of chitosan (Ch). The composition and structural features of the gel were characterized by advanced analytical methods including transmission electron microscopy, X-ray diffraction, and atomic emission spectroscopy. It was shown that iron(iii) monoglycerolate undergoes partial hydrolysis under the gelation conditions and exists as a separate nanoscale phase along with the hydrolysis products in cells of the 3D Si-containing polymeric gel network. This network is formed as a result of incomplete hydrolysis of silicon glycerolates in excess glycerol followed by homo- and heterofunctional condensation of silanol groups with the formation of Si-O-Si units containing residual glyceroxy groups at the silicon atom. Chitosan forms numerous intermolecular bonds with the 3D gel network, accelerates the process of gelation, makes the gel morphostructure more ordered, and increases the stability of the gel. The Si-Fe-Ch-containing glycerohydrogel is nontoxic and possesses hemostatic and wound-healing activity, being a promising topical medication for medical and veterinary practice.
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5.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Andreikov E. I., Krasikova A. P., Pervova M. G., Kabak A. S.
Заглавие : Investigation of hydrogen transfer from coal tar pitch and petroleum pitches using a-methylstyrene as hydrogen acceptor
Место публикации : Chemistry for sustainable development. - 2022. - Vol. 30, № 5. - С. 446-454
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): a-methylstyrene--coal tar pitch--petroleum pitches
Аннотация: The reaction of hydrogen transfer from coal tar pitch and petroleum pitches to Α-methylstyrene with the formation of cumene was investigated in glass ampoules within the temperature range of 200-360 °C and reaction time of 15-60 min and when passing Α-methylstyrene through a layer of coal tar pitch. It is shown that the formation of non-chromatographable products of Α-methylstyrene condensation with polycyclic aromatic compounds of pitches occurs simultaneously. The dependences of Α-methylstyrene conversion, the selectivity for cumene and condensation products on the temperature and reaction time, the ratio of pitch/Α-methylstyrene are determined. The amount of hydrogen transferred from pitches to Α-methylstyrene was determined, and the results obtained were compared with the literature data on the transfer of hydrogen from pitches obtained using anthracene as a hydrogen acceptor.
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6.

Вид документа : Статья из журнала
Шифр издания : Г/E 27
Автор(ы) : Kudyakova Y. S., Onoprienko A. Y., Edilova Y. O., Burgart Y. V., Saloutin V. I., Bazhin D. N.
Заглавие : Effect of the nature of a fluorinated substituent on the synthesis of functionalized 1,3-diketones
Место публикации : Russian chemical bulletin. - 2021. - Vol. 70, № 4. - С. 745-752
ББК : Г
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The synthesis of alkali metal and copper(II) 1-polyfluoroalkyl-4,4-dimethoxypentane-1,3-dionates is reported. The subsequent treatment of these compounds with oxalic acid or ethylenediaminetetraacetic acid disodium salt affords functionalized 1,3-diketones. The nature of the polyfluoroalkyl substituent was found to affect the conditions of the Claisen condensation and the stability of the acetal group in acidic medium.
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7.

Вид документа : Статья из журнала
Шифр издания : Г/S 98
Автор(ы) : Saloutin V. I., Burgart Y. V., Edilova Y. O., Slepukhin P. A., Kudyakova Y. S., Bazhin D. N.
Заглавие : Synthesis and structure of homoleptic copper complexes based on fluorinated functionalized 1,3-diketones
Место публикации : Russian chemical bulletin. - 2021. - Vol. 70, № 5. - С. 839-846
ББК : Г
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): fluorinated 1,3-diketonates--claisen condensation--acetals--transition metal diketonates
Аннотация: Mononuclear copper(II) complexes were synthesized based on fluorinated diketonates decorated with a carbonyl or acetal group. The X-ray diffraction data demonstrate the effect of the nature of the fluorinated substituent on the crystal structure of homoleptic copper(II) complexes. As opposed to 1,2,4-triketonate, the acetal moiety of 1,3-diketonate enables intermolecular coordination to the metal centers, thereby making it possible to use 1,3-diketonate in further synthesis of heterometallic structures.
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8.

Вид документа : Статья из журнала
Шифр издания : Г/S 98
Автор(ы) : Khonina T. G., Nikitina E. Yu., Shadrina E. V., Ganebnykh I. N., Valova M. S., Chupakhin O. N., Evstigneeva N. P., Kokhan M. M., Karabanalov M. S., Kuznetsov D. K.
Заглавие : Synthesis and antimicrobial activity of silicon-titanium-zinc- and silicon-titanium-boron-containing glycerohydrogels
Место публикации : Russian chemical bulletin. - 2021. - Vol. 70, № 5. - С. 967-974
ББК : Г
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Novel pharmacologically active silicon—titanium—zinc- and silicon—titanium—boron-containing glycerohydrogels were synthesized by the sol—gel method using silicon, titanium, zinc, and boron glycerolates as biocompatible precursors. The compositions and structural features of the hydrogels were studied by transmission electron microscopy, scanning electron microscopy, IR spectroscopy, atomic emission spectrometry, and elemental analysis methods. The disperse phase and liquid water—glycerol medium of the hydrogels were isolated by cold exhaustive extraction with ethanol and characterized. The 3D polymeric network of the gels is formed by the products of hydrolysis and subsequent (co)condensation of silicon-/silicon—boron-containing precursors. Titanium and zinc glycerolates undergo no hydrolytic transformations under gelation conditions and exist in the cells of the 3D polymeric network in the form of amorphous nanoparticles that are not linked to the network by covalent bonds. Models of the structures were proposed. The gels are characterized by antimicrobial activity, which is more pronounced for the silicon—titanium—boron-containing gel, and they can be considered as promising drugs for topical treatment prepared by the simple, environmentally friendly, and cost-effective method.
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9.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Demin A. M., Kandarakov O. F., Minin A. S., Kuznetsov D. K., Uimin M. A., Shur V. Ya., Belyavsky A. V., Krasnov V. P.
Заглавие : Modification of chemically and physically obtained Fe3O4 magnetic nanoparticles with L-Lys for cell labeling
Место публикации : Russian chemical bulletin. - 2021. - Vol. 70, № 6. - С. 1199-1208
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Peculiar features of the modification of Fe3O4 magnetic nanoparticles (MNPs) obtained by co-precipitation from solutions of FeII and FeIII salts (10-nm MNPs) and by the gas-condensation method (30-nm MNPs) with 3-aminopropylsilane and then with L-lysine were studied. The chemically obtained MNPs possess more pronounced hydrophilic properties and therefore readily form stable aqueous colloidal solutions and can be loaded with a larger amount of L-Lys. However, samples based on the physically obtained MNPs were characterized by more efficient internalization and longer retention times by the NIH 3T3 cells. The results obtained can be used in the design of novel nanomaterials for magnetic cell labeling.
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10.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Khudina O. G., Ivanova A. E., Burgart Ya. V., Gerasimova N. A., Evstigneeva N. P., Saloutin V. I.
Заглавие : Synthesis of mycostatics based on 4-aryldiazenyl-3,5-dimethylpyrazoles
Место публикации : Russian chemical bulletin. - 2021. - Vol. 70, № 6. - С. 1124-1130
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): 3-arylhydrazinylidenepentane-2,4-dione--condensation--hydrazines--4-aryldiazenyl-3,5-dimethylpyrazoles
Аннотация: The condensation of 3-arylhydrazinylidenepentane-2,4-diones with hydrazine hydrate, 2-hydroxyethylhydrazine, benzylhydrazine hydrochloride, and 4-hydrazinylbenzenesulfonamide hydrochloride gave 4-aryldiazenyl-3,5-dimethylpyrazoles. An alternative route to the synthesis of N-substituted 4-aryldiazenylpyrazoles is based on the alkylation of NH-pyrazoles with haloalkanes. The synthesized compounds were tested for antimicrobial activity against eight pathogenic dermatophytes, yeast-like fungi of the Candida genus and the bacteria Neisseria gonorrhoeae. The structure—activity relationship analysis showed that 4-tolyldiazenylpyrazoles bearing H, AcO(CH2)4, or HO(CH2)4 substituents at the N(1) atom have the highest mycostatic activity against all the dermatophyte strains under study. However, 4-aryldiazenyl-3,5-dimethylpyrazoles proved to be quite cytotoxic against the McCoy B cell line.
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11.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Smyshliaeva L. A., Varaksin M. V., Charushin V. N., Chupakhin O. N.
Заглавие : Azaheterocyclic derivatives of ortho - carborane: synthetic strategies and application opportunities
Место публикации : Synthesis. - 2020. - Vol. 52, № 3. - С. 337-352
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): azaheterocycles--carboranes--carboryne--cross-coupling reactions--decaborane
Аннотация: Azaheterocyclic derivatives of 1,2-dicarba- closo -dodeca borane (ortho -carborane) are known to be of particular interest due to numerous plausible applications, particularly, in medicine, materials science, and advanced technologies. Three principal synthetic strategies resulting in azaheterocyclic carboranes, in which boron-enriched and azaheterocyclic fragments are linked to each other, either directly by means of the C-C bonds or through a short spacer (CH 2, CH 2 S, CH 2 O, etc.), have been outlined. These synthetic approaches are of general character and can be used both individually and in combination to afford promising organoboron clusters of diverse architectures. 1 Introduction 2 C-C Cross-Coupling Strategies in the Synthesis of Azahetero cyclic Carboranes 3 Carboryne-Based Transformation Strategies 4 Condensation Strategies: Reactions of Decaborane B 10 H 14 with Substituted Acetylenes 5 Conclusion and Outlook.
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12.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Smyshliaeva L. A., Varaksin M. V., Charushin V. N., Chupakhin O. N.
Заглавие : Azaheterocyclic derivatives of ortho -carborane: synthetic strategies and application opportunities
Место публикации : Synthesis. - 2020. - Т. 52, № 3. - С. 337-352
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): carboranes--azaheterocycles--decaborane--cross-coupling reactions--carboryne
Аннотация: Azaheterocyclic derivatives of 1,2-dicarba- closo -dodeca borane (ortho -carborane) are known to be of particular interest due to numerous plausible applications, particularly, in medicine, materials science, and advanced technologies. Three principal synthetic strategies resulting in azaheterocyclic carboranes, in which boron-enriched and azaheterocyclic fragments are linked to each other, either directly by means of the C-C bonds or through a short spacer (CH 2, CH 2 S, CH 2 O, etc.), have been outlined. These synthetic approaches are of general character and can be used both individually and in combination to afford promising organoboron clusters of diverse architectures. 1 Introduction 2 C-C Cross-Coupling Strategies in the Synthesis of Azahetero cyclic Carboranes 3 Carboryne-Based Transformation Strategies 4 Condensation Strategies: Reactions of Decaborane B 10 H 14 with Substituted Acetylenes 5 Conclusion and Outlook.
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13.

Вид документа : Статья из журнала
Шифр издания :
Автор(ы) : Sosnovskikh V. Y., Vetyugova D. A., Safrygin A. V., Eltsov O. S., Slepukhin P. A.
Заглавие : Self-condensation of 2-(ethoxalylmethyl)chromones into new derivatives of isotetronic acid
Место публикации : Mendeleev Communications. - 2018. - Vol. 28, № 4. - С. 434-436
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
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14.

Вид документа : Статья из журнала
Шифр издания : 54/U 52
Автор(ы) : Kudyakova Y. S., Bazhin D. N., Slepukhin P. A., Burgart Ya. V., Saloutin V. I., Charushin V. N.
Заглавие : Unexpected formation of diethyl 2-ethoxy-6-CF.sub.3-2H-pyran-3,5-dicarboxylate from the condensation of ethyl 4,4,4-trifluoroacetoacetate with CH(OEt).sub.3
Место публикации : Tetrahedron Letters. - 2017. - Vol. 58, № 8. - С. 744-747
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): pyran-- detrifluoroacetylation--ethyl trifluoroacetoacetate--condensation--pyridines
Аннотация: The one-step preparation of diethyl 2-ethoxy-6-CF3-2H-pyran-3,5-dicarboxylate via the condensation of ethyl 4,4,4-trifluoroacetoacetate with CH(OEt)3 has been reported and a plausible mechanism for this transformation is discussed. To demonstrate the synthetic potential of the obtained pyran, the reactions with ammonia and aromatic amines to give trifluoromethylated pyridine derivatives are presented.
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15.

Вид документа : Статья из журнала
Шифр издания : 54/E 27
Автор(ы) : Chizhov D. L., Belyaev D. V., Yachevskii, Danil S. D. S., Rusinov G. L., Chupakhin O. N., Charushin V. N.
Заглавие : Efficient and scalable synthesis of 3-(polyfluoroacyl)pyruvaldehydes dimethyl acetals: A novel functionalized fluorinated building-block
Место публикации : Journal of Fluorine Chemistry. - 2017. - Vol. 199. - С. 39-45
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): fluorinated 1,3-diketones--acetals--claisen condensation--calcium hydride--3-(polyfluoracyl)pyruvaldehydes--pyrazole-1h-3- carbaldehydes
Аннотация: An efficient approach for the synthesis of 3-(polyfluoroacyl)pyruvaldehydes dimethyl acetals (1,1-dimethoxy-4-polyfluoroalkyl-butan-2,4-dions) from 1,1-dimethoxyacetone and polyfluorinated carboxylic acid esters has been developed. The procedure includes the Claisen type condensation of the starting materials by means of calcium hydride in methanol, followed by isolation of copper complexes of the corresponding diketones and their destroying with disodium EDTA. A simple synthesis of 5(3)-(polyfluoroalkyl)-1H-pyrazole-3(5)-carbaldehydes and their acetals is also presented.
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16.

Вид документа : Статья из журнала
Шифр издания : 54/S 70
Автор(ы) : Santra S., Kopchuk D. S., Kovalev I. S., Zyryanov G. V., Majee A., Charushin V. N., Chupakhin O. N.
Заглавие : Solvent-free synthesis of pillar[6]arenes
Место публикации : Green Chemistry. - 2016. - Vol. 18. - С. 423-426
Примечания : Bibliogr. : p. 5 (16 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): pillar[6]arenes--solvent-free procedure
Аннотация: An efficient solvent-​free procedure for the synthesis of pillar[6]arenes has been developed. The procedure involves the solid-​state condensation of finely milled 1,​4-​dialkoxybenzene and paraformaldehyde by grinding in the presence of a catalytic amt. of H2SO4. The use of org. solvents for the extn. of products has also been avoided. Operational simplicity, compatibility with various 1,​4-​dialkoxybenzenes, non-​chromatog. purifn. technique, high yields and mild reaction conditions are the notable advantages of this procedure. A large scale reaction demonstrated the practical applicability of this methodol.
\\\\expert2\\nbo\\Green Chemistry\\2015. Accepted Manuscript. P. 1-5. pdf.pdf
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17.

Вид документа : Статья из журнала
Шифр издания : 54/T 19
Автор(ы) : Filimonov V. O., Abaev V. T., Beryozkina T., Galata K. A., Slepukhin P. A., Kostenko M. A., Berseneva V. S.
Заглавие : Tandem Knoevenagel Condensation and Intramolecular Cycloaddition Reactions of 2-Azidobenzaldehydes with 2-Cyanoacetamides in the Synthesis of 4-Thiocarbamoyltetrazolo-[1,5-a]Quinolines
Параллельн. заглавия :Тандем реакций конденсации по Кнёвенагелю и внутримолекулярного циклоприсоединения 2-азидобензальдегидов с 2-цианотиоацетамидами в синтезе 4-тиокарбамоилтетразоло[1,5-a]хинолинов
Место публикации : Chemistry of Heterocyclic Compounds. - 2016. - Vol. 52, № 9. - С. 721-726
Примечания : Bibliogr. : p. 726 (32 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): 2-azidobenzaldehydes --tetrazolo[1,5-a]quinoline --cyanoacetic acid thioamides
Аннотация: The reaction of 2-azidobenzaldehydes with 2-thioamides of cyanoacetic acid proceeds without a solvent and base at 80–90°C selectively by one of the possible routes to form tetrazolo[1,5-a]quinolines. The proposed mechanism of the reaction involves the Knoevenagel condensation and subsequent intramolecular [3+2] cycloaddition of the azide group at the C≡N bond of an intermediate acrylonitrile.
\\\\expert2\\NBO\\Chemistry of Heterocyclic Compounds\\2016, v.52, N 9, p. 721-726.pdf
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18.

Вид документа : Статья из журнала
Шифр издания : 54/A 10
Автор(ы) : Bazhin D. N., Kudyakova Yu.S., Roeschenthaler G.-V., Burgart Ya. V., Slepukhin P. A., Isenov M. L., Saloutin V. I., Charushin V. N.
Заглавие : A Convenient Approach to CF3-Containing N-Heterocycles Based on 2-Methoxy-2-methyl-5-(trifluoromethyl)furan-3(2H)-one [Электронный ресурс]
Место публикации : European Journal of Organic Chemistry. - 2015. - № 23. - С. 5236-5245
Систем. требования: http://apps.webofknowledge.com/
Примечания : Bibliogr. : p. 5245 (23 ref.). - 18.01.16
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): nitrogen heterocycles --fluorine--oxygen heterocycles
Аннотация: New synthetic routes to trifluoromethylated N-heterocycles based on condensations of 2-methoxy-2-methyl-5-(trifluoromethyl)furan-3(2H)-one with bifunctional N-nucleophiles are described. For the first time, trifluoromethyl-containing pyrazoles, pyrazolines and isoxazolines bearing hydrazone or oxime groups could be obtained by a one-pot strategy based on reactions of 5-(trifluoromethyl)furan-3(2H)-one with two equivalents of the corresponding hydrazines or hydroxylamine in the presence of an acid. The interaction of furan-3(2H)-one with ureas proceeded under mild conditions to furnish 1H-furo[2,3-d]imidazol-2(3H)-one derivatives in good yield. Further, a trifluoromethyl-containing quinoxaline derivative was obtained by condensation of furan-3(2H)-one with ortho-phenylenediamine.
\\\\expert2\\nbo\\European Journal of Organic Chemistry\\2015, №23. p.5236-5245.pdf
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19.

Вид документа : Статья из журнала
Шифр издания : 54/A 10
Автор(ы) : Irgashev R. A., Karmatsky A. A., Rusinov G. L., Charushin V. N.
Заглавие : A new and convenient synthetic way to 2-substituted thieno[2,3-b]indoles [Электронный ресурс]
Место публикации : Beilstein Journal of Organic Chemistry. - 2015. - Vol. 11. - С. 1000-1007
Систем. требования: http://apps.webofknowledge.com/
Примечания : Bibliogr. : p. 1006-1007 (35 ref.). - 18.01.2016
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): aldol-crotonic condensation --lawesson's reagent--isatin
Аннотация: A short and robust approach for the synthesis of 2-(hetero)aryl substituted thieno[2,3-b]indoles from easily available 1-alkylisatins and acetylated (hetero)arenes has been advanced. The two-step procedure includes the "aldol-crotonic" type of condensation of the starting materials, followed by treatment of the intermediate 3-(2-oxo-2-(hetero)arylethylidene) indolin-2-ones with Lawesson's reagent. The latter process involves two sequential reactions, namely reduction of the C=C ethylidene double bond of the intermediate indolin-2-ones followed by the Paal-Knorr cyclization, thus affording tricyclic thieno[2,3-b]indoles.
\\\\expert2\\nbo\\Beilstein Journal of Organic Chemistry\\2015, v. 11, p.1000-1007.pdf
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20.

Вид документа : Статья из журнала
Шифр издания : 54/A 10
Автор(ы) : Irgashev R. A., Karmatsky A. A., Kozyukhin S., Ivanov V. K., Sadovnikov A., Kozik V. V., Grinberg V., Emets V. V., Rusinov G. L., Charushin V. N.
Заглавие : A facile and convenient synthesis and photovoltaic characterization of novel thieno[2,3-b]indole dyes for dye-sensitized solar cells [Электронный ресурс]
Место публикации : Synthetic Metals. - 2015. - Vol. 199. - С. 152-158
Систем. требования: http://apps.webofknowledge.com/
Примечания : Bibliogr. : p. 158 (28 ref/). - 18.01.2016
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): thieno[2,3-b]indole --dyes--thiophene
Аннотация: Two novel dyes IK-1,2 bearing the 8-alkyl-8H-thieno[2,3-b]indole unit as an electron-donating part of the push-pull system have been designed and prepared, as promising sensitizers for solar cells. The key steps of the synthesis involve the crotonic condensation of 1-alkylisatins with 2-acetylthiophene, followed by reduction of the C=C double bond and further cyclization through the Paal-Knorr reaction with the Lawesson reagent, thus leading to the formation of 2-(thien-2-yl) substituted thieno[2,3-b] indole derivatives. The optical and electrochemical properties of these dye's have been investigated by using spectrophotometry and cyclic voltammetry respectively, while their photovoltaic performance was evaluated by a device fabricatien study. The DSSCs based on IK-1 and IK-2 have demonstrated an efficiency of eta = 0.37% (FF = 73%) and eta = 0.7g% (FF = 69%) under 100 mW cm(-2) simulated AM 1.5G solar irradiation, respectively.
\\\\expert2\\nbo\\Synthetic Mеtals\\2015, V.199, p. 152-158.pdf
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