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1.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Saloutin V. I., Skryabina Z. E., Burgart Ya. V., Chupakhin O. N.
Заглавие : Reaction of 2-amino-4-imino-2-perfluoropentene with ethylenediamine and diethylenetriamine [Electronic resource]
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1993. - Vol. 42, № 10. - С. 1697-1700
Систем. требования: http://www.springerlink.com/content/675411v130641297/fulltext.pdf
Примечания : 24.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The transamination of 2-amino-4-imino-2-perfluoropentene with ethylenediamine gives the corresponding 6-fluoro-5,7-bis(trifluoromethyl)-2,3-dihydro-1H-1,4-diazepine. The transamination of 2-amino-4-imino-2-perfluoropentene by diethylenetriamine is accompanied by intramolecular nucleophilic substitution of the ?-fluorine atom to form 1,9-bis(trifluoromethyl)-3,4,6,7-tetrahydro-2H-pyrazino[1,2-a]pyrazine whose structure was established by an X-ray structural investigation. Several salts of this bicyclic compound and its complex with BF3 have been described
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\1993, 42 (10), 1697.pdf
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2.

Вид документа : Статья из журнала
Шифр издания : 54/S 17
Автор(ы) : Saloutina L. V., Kodess M. I., Zapevalov A. Ya.
Заглавие : Reactions of 2,3-epoxypolyfluoroalkanes with triethylamine [Electronic resource]
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1994. - Vol. 43, № 12. - С. 2057-2061
Систем. требования: http://www.springerlink.com/content/j1n776pq384557g2/fulltext.pdf
Примечания : 26.10.2011.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reactions of 2,3-epoxyperfluoro- and 2,3-epoxy--hydropolyfluoroalkanes with excess triethylamine at elevated temperatures yield secondary alcohols, which are the reduction products of intermediate isomeric ketones. Ring-opening occurs preferentially from the side of the less bulky trifluoromethyl group in all compounds except 2,3-epoxy-6-hydroundecafluorohexane
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\1994, 43 (13), 2057-2061.pdf
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3.

Вид документа : Статья из журнала
Шифр издания : 54/М 75
Автор(ы) : Юфит Д. С., Стручков Ю. Т., Пашкевич К. И., Хомутов О. Г.
Заглавие : Молекулярная структура 1-фенил-2-трифторметил-3-бензоилазиридина
Параллельн. заглавия :Molecular structure of 1-phenyl-2-trifluoromethyl-3-benzoylaziridine
Место публикации : Изв. АН. Сер. Химическая. - 1995. - N 10. - С. 1975-1977. - ISSN 0002-3353. - ISSN 0002-3353
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
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4.

Вид документа : Статья из журнала
Шифр издания : 54/O-99
Автор(ы) : Odinokov V. N., Akhmetova V. R., Savchenko R. G., Bazunova M. V., Fatykhov A.A., Zapevalov A. Ya.
Заглавие : Ozonolysis of perfluoroalkenes and perfluorocycloalkenes [Electronic resource]
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1997. - Vol. 46, № 6. - С. 1190-1191
Систем. требования: http://www.springerlink.com/content/7584818t3163630k/fulltext.pdf
Примечания : 26.10.2011.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Ozonolysis of 1-methoxyperfluorocyclobutene in Freon-113 followed by hydrogenation of the reaction products gave methyl hydrogen perfluorosuccinate. Under similar conditions, perfluorooct-1- and-2-enes and 4-trifluoromethyl-1,1,1,2,3,4,5,5,5-nonafluoropent-2-ene were converted into perfluorinated heptanoic, hexanoic, and isobutyric acids, respectively
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\1997, 46 (6), 1190.pdf
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5.

Вид документа : Статья из журнала
Шифр издания : 54/S 73
Автор(ы) : Sosnovskikh V. Ya., Mel'nikov M. Yu., Kodess M. I.
Заглавие : Reaction of 3,3-dialkyl-6-trifluoromethyl-2,3-dihydro-4-pyrones with hydrazine hydrate [Electronic resource]
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1998. - Vol. 47, № 7. - С. 1365-1368
Систем. требования: http://www.springerlink.com/content/01m707144u171256/fulltext.pdf
Примечания : 26.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 3,3-Dialkyl-2,3-dihydro-6-trifluoromethyl-4-pyrones react with hydrazine hydrate to give 2-hydrazino-2-trifluoromethyl-4-tetrahydropyrone hydrazones. When heated, the latter are transformed into 3(5)-(2-hydroxyethyl)-5(3)-trifluoromethylpyrazoles, while their treatment with HCl in ether leads to 3,3-dialkyl-2,3-dihydro-6-trifluoromethyl-4-pyrone azines
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\1998, 47 (7), 1365.pdf
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6.

Вид документа : Статья из сборника (однотомник)
Шифр издания : 54/S 73
Автор(ы) : Sosnovskikh V. Ya., Mel'nikov M. Yu., Yatluk Yu. G.
Заглавие : 2,3-dihidro-2,2-dimethyl-6-trifluoromethyl-4-pyrone as Useful CF3-containing Synthon : доклад, тезисы доклада
Место публикации : International Memorial I.Postovsky Conference on Organic Chemisty, Ekaterinburg, March 17-20, 1998 : program and abstracts. - Ekaterinburg, 1998. - С. 94
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
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7.

Вид документа : Статья из журнала
Шифр издания : 54/P 80
Автор(ы) : Saloutina L. V., Zapevalov A. Ya., Kodess M. I., Saloutin V. I., Aleksandrov G. G., Chupakhin O. N.
Заглавие : Polyfluoro-2,3-epoxyalkanes in reactions with thiourea and thiosemicarbazide
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2000. - Vol. 36, № 6. - С. 887-899
Примечания : Bibliogr. : p. 899 (17 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
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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8.

Вид документа : Статья из журнала
Шифр издания : 54/P 80
Автор(ы) : Saloutina L. V., Zapevalov A. Ya., Kodess M. I., Saloutin V. I., Aleksandrov G. G., Chupakhin O. N.
Заглавие : Polyfluoroalkylated 1,3-thiazolines: synthesis from polyfluoro-2,3-epoxyalkanes
Место публикации : Journal of Fluorine Chemistry. - 2000. - Vol. 104, № 2. - С. 155-165
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The interaction of polyfluoro-2,3-epoxyalkanes with thiourea and thiosemicarbazide results in 2-amino-5-fluoro-4-hydroxy-4,5-di(polyfluoroalkyl)-1,3-thiazolines and 5-fluoro-2-hydrazino-4-hydroxy-4,5-di(polyfluoroalkyl)-1,3-thiazolines, respectively. Asymmetric oxiranes yield mixtures of regioisomers, and the ring opening has been found to occur mainly near the bulkier fluoroalkyl group. The reaction with thiourea proceeds stereospecifically in dimethyl sulfoxide. The molecular structure of E-isomers of 2-amino-5-fluoro-4-hydroxy-4,5-bis(trifluoromethyl)-1,3-thiazoline and 2-amino-5-fluoro-5-heptafluoropropyl-4-hydroxy-4-trifluoromethyl-1,3-thiazoline has been established by X-ray crystallography.????
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9.

Вид документа : Статья из журнала
Шифр издания : 54/B 57
Автор(ы) : Saloutin V. I., Burgart Ya. V., Kuzueva O. G., Kappe C.O., Chupakhin O. N.
Заглавие : Biginelli condensations of fluorinated 3-oxo esters and 1,3-diketones
Место публикации : Journal of Fluorine Chemistry. - 2000. - Vol. 103, № 3. - С. 17-23
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Condensation of fluorinated 3-oxo esters or 1,3-diketones with benzaldehyde and (thio)urea results in the diastereoselective formation of 4-fluoroalkyl-4-hydroxy-2-oxo(thioxo)-6-phenyl-hexahydropyrimidine-5-carboxylates from which by dehydration under acidic conditions the corresponding 6-fluoroalkyl-2-oxo(thioxo)-4-phenyl-1,2,3,4-tetrahydropyrimidine-5-carboxylates were obtained. Under the same conditions, hexafluoroacetylacetone furnishes 4,6-dihydroxy-4,6-di(trifluoromethyl)-hexahydropyrimidin-2-one. Some further reactions of these pyrimidine derivatives leading to fused heterocycles are described.????
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10.

Вид документа : Статья из журнала
Шифр издания : 54/N 89
Автор(ы) : Aizikovich A. Y., Nikonov M. V., Kodess M. I., Korotaev V.Yu., Charushin V. N., Chupakhin O. N.
Заглавие : Novel 1-trifluoromethyl substituted 1,2-ethylenediamines and their use for the synthesis of fluoroquinolones
Место публикации : Tetrahedron. - 2000. - Vol. 56, N 13. - С. 1923-1927
ББК : 54
Предметные 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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11.

Вид документа : Статья из журнала
Шифр издания : 54/F 70
Автор(ы) : Burgart Ya. V., Kuzueva O. G., Pryadeina M. V., Kappe C.O., Saloutin V. I.
Заглавие : Fluorocontaining 1,3-Dicarbonyl Compounds in the Synthesis of Pyrimidine Derivatives ?? [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2001. - Vol. 37, № 6. - С. 869-880
Систем. требования: http://www.springerlink.com/content/g780k3287x417830/fulltext.pdf
Примечания : 28.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Hexafluoroacetylacetone reacts with urea (thiourea) to yield respectively 4,6-bis(hydroxy)-4,6-bis(trifluoromethyl)hexahydropyrimidin-2-one(thione). The dehydration of the products and also reaction of nonsymmetrical fluoroalkyl-containing 1,3-diketones with urea (thiourea) afford substituted pyrimidines. The condensation of fluorinated 3-oxoesters and 1,3-diketones with benzaldehyde and urea (thiourea) results in 5-alkoxycarbonyl(acyl)-4-hydroxy-2-oxo(thioxo)-6-phenyl-4-fluoroalkylhexahydropyrimidines that on dehydration furnish 5-alkoxycarbonyl(acyl)-2-oxo(thioxo)-4-phenyl-6-fluoroalkyltetrahydropyrimidines. Ethyl 7-nonafluorobutyl-5-phenyl-2,3-dihydrothiazolo[3,2-a]pyrimidine-6-carboxylate hydrobromide forms in reaction of dibromoethane with ethyl ether of 2-thioxo-4-phenyl-6-nonafluorobutyltetrahydropyrimidine
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2001, 37 (6), 869.pdf
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12.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Filyakova V. I., Kodess M. I., Zapevalov A. Ya., Saloutin V. I.
Заглавие : Synthesis of perfluoro- and 2-trifluoromethylpentafluoro-dihydrofurans and their epoxy derivatives [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2003. - Vol. 39, № 7. - С. 1010-1015
Систем. требования: http://www.springerlink.com/content/tk65261645q64317/fulltext.pdf
Примечания : Bibliogr. : p. 1015 (11 ref.). - 31.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Perfluorotetrahydrofuran-2-carboxylic acid was converted through a series of transformations into perfluoro-2,3-dihydrofuran and perfluoro-2,5- dihydrofuran; likewise, from (2-perfluorotetrahydrofuryl)difluoroacetic acid 2-trifluoromethylpentafluoro-2,3-dihydrofuran was obtained. Perfluoro-2,3- dihydrofuran and 2-trifluoromethylpentafluoro-2,3-dihydrofuran underwent isomerization into perfluoro-2,5-dihydrofuran and 2-trifluoromethylpentafluoro- 2,5-dihydrofuran by the action of cesium fluoride. Treatment of perfluoro-2,5-dihydrofuran with SbF5 resulted in ring opening and formation of cis-perfluoro-2-butenoyl fluoride, while 2- trifluoromethylpentafluoro-2,3-dihydrofuran was converted into 2-trifluoromethylpentafluoro-2,5-dihydrofuran under the same conditions. Perfluoro-3,4-epoxytetrahydrofuran and 2-trifluoromethyl-3,4-epoxypenta- fluorotetrahydrofuran containing fused oxirane and tetrahydrofuran rings were synthesized by reactions of perfluoro-2,5-dihydrofuran and 2- trifluoromethylpentafluoro-2,5-dihydrofuran, respectively, with sodium hypochlorite.
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2003, 39 (7), 1010.pdf
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13.

Вид документа : Статья из журнала
Шифр издания : 54/F 94
Автор(ы) : Saloutina L. V., Zapevalov A. Ya., Kodess M. I., Lyssenko K.A., Antipin M. Yu., Saloutin V. I., Chupakhin O. N.
Заглавие : From oxides of internal perfluoroolefins to fluorocontaining camphor thiazolinylhydrazones
Место публикации : Journal of Fluorine Chemistry. - 2003. - Vol. 120, № 1. - С. 41-47
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reaction of oxides of internal trans- and cis-perfluoroolefins with (1S, 4S)- or racemic camphor thiosemicarbazone leads to the formation of trans- and cis-isomers of (1S, 4S)- or racemic camphor 5?-fluoro-4?-hydroxy-4?,5?-di(perfluoroalkyl)-1?,3?-thiazolinyl-2?-hydrazones, respectively. Unsymmetrical dodecafluoro-2,3-epoxyhexane yields a mixture of regioisomeric hydrazones. The molecular structure of the trans-isomer of (1S, 4S)-camphor 5?-fluoro-4?-hydroxy-4?,5?-bis(trifluoromethyl)-1?,3?-thiazolinyl-2?-hydrazone has been established by X-ray crystallography. The quite rare example of cocrystallization of two diastereomers of the latter in homochiral crystal (sp. group P21) has been revealed????
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14.

Вид документа : Статья из журнала
Шифр издания : 54/A 46
Автор(ы) : Vasil'eva E. B., Filyakova V. I., Sidorova L. P., Filatov I.E., Charushin V. N.
Заглавие : Ambident Properties of 4-Substituted Thiosemicarbazides in Condensations with Fluoroacetic Acids [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2005. - Vol. 41, № 10. - С. 1522-1525
Систем. требования: http://www.springerlink.com/content/p7574p020027611h/fulltext.pdf
Примечания : 31.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 4-Substituted thiosemicarbazides react with di- and trifluoroacetic acids to give the corresponding 3-fluoroalkyl-4,5-dihydro-1,2,4-triazole-5(1H)-thiones. Condensation of 4,4-disubstituted thiosemicarbazides with trifluoroacetic acid leads to formation of 2-amino-5-trifluoromethyl-1,3,4-thiadiazoles
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2005, 41 (10), 1522.pdf
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15.

Вид документа : Статья из журнала
Шифр издания : 54/S 98
Автор(ы) : Khudina O. G., Shchegol'kov E. V., Burgart Ya. V., Kodess M. I., Kazheva O. N., Chekhlov A. N., Shilov G. V., Dyachenko O. A., Saloutin V. I., Chupakhin O. N.
Заглавие : Synthesis and the reactions of trifluoromethylated 1,2,3-triketones 2-(het)arylhydrazones and 4,7-dihydroazolo[5,1-c]triazines
Место публикации : Journal of Fluorine Chemistry. - 2005. - Vol. 126, № 8. - С. 1230-1238
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The coupling of trifluoromethylated 1,3-diketones with (het)aryldiazonium chlorides results mainly in the formation of 1,2,3-triketones 2-(het)arylhydrazones while using hetarylamine with a NH-group at the ?-position of the heterocycle as the diazonium component gives 4,7-dihydroazolo[5,1-c]triazines due to cyclization at the trifluoroacetyl fragment. Trifluoromethylated 1,2,3-triketones 2-(het)arylhydrazones and 7-hydroxy-4,7-dihydroazolo[5,1-c]triazines react regio-selectively with methyl hydrazine and phenyl hydrazine to form 3-CF3-pyrazoles. The long-range coupling constants (JF-H) of 1-methylpyrazoles and the chemical shifts of trifluoromethyl groups in the 19F NMR spectra can be used for the determination of regio-isomeric structures of mono(trifluoromethyl)-substituted pyrazoles. 2-(Het)arylhydrazones and 4,7-dihydroazolo[5,1-c]triazines with two trifluoromethyl substituents afford the mixtures of cis- and trans-azopyrazoles in the reactions with hydrazines.
\\\\Expert2\\nbo\\Journal of Fluorine Chemistry\\2005, v.126, p.1230.pdf
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16.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Saloutina L. V., Zapevalov A. Ya., Saloutin V. I., Kodess M. I., Kirichenko V. E., Pervova M. G., Chupakhin O. N.
Заглавие : Reaction of 2,3-epoxyoctafluorobutane with 2-aminobenzenethiol [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2006. - Vol. 42, № 9. - С. 1307-1312
Систем. требования: http://www.springerlink.com/content/0168585140033041/fulltext.pdf
Примечания : Bibliogr. : p. 1312 (13 ref.). - 31.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reaction of 2,3-epoxyoctafluorobutane with 2-aminobenzenethiol in N,N-dimethylacetamide gave 3-(2-aminophenylsulfanyl)-1,1,1,3,4,4,4- heptafluorobutane-2,2-diol. In the reaction of the same compounds in dioxane, 2,3-bis(trifluoromethyl)-3,4-dihydro-2H-1,4-benzothiazin-2-ol was formed as a result of primary attack by the amino group in 2-aminobenzenethiol on the epoxy ring. The same product was obtained by treatment with 2-aminobenzenethiol of 2,3-bis(trifluoromethyl)-2H-1,4-benzoxazin-2-ol which was synthesized from 2,3-epoxyoctafluorobutane and 2-aminophenol.
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2006, 42 (9), 1307.pdf
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17.

Вид документа : Статья из журнала
Шифр издания : 54/C 52
Автор(ы) : Chizhov D. L., Roeschenthaler G.-V.
Заглавие : Reaction of trifluoromethylated beta-alkoxyenones with tris(trimethylsilyl) phosphite: A temperature influence on regioselectivity
Место публикации : Journal of Fluorine Chemistry. - 2006. - Vol. 127, № 2. - С. 235-239
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The interaction of tris(trimethylsilyl) phosphite (TMSO)3P and E-trifluoromethyl-alkoxyenones CF3C(O)CHCHOEt and CF3C(O)CHC(OMe)Me yielded mixtures of E-1,2- and Z-1,4-adducts, CF3C(OTMS)[P(O)(OTMS)2]CCH(OAlk)R 2 and CF3(OTMS)CCHCR(OAlk)[P(O)(OTMS)2] 3 where R and Alk = H and Me, or both Me. Conversion of these 1,2-adducts to 1,4-isomers was effected by increased temperature or by exposure to more tris(trimethylsilyl) phosphite. Acid hydrolysis of 2b (R and Alk = Me) gave ketophosphonic acid CF3C(OH)[P(O)(OH)2]CH2COMe in 88% yield, whereas hydrolysis of 2a (R = H and Alk = Et) with KOH in methanol gave CF3C(OH)[P(O)(OK)2]CHCHOEt in 37% yield. Acid hydrolysis of 3a (R = H and Alk = Et) and 3b (R and Alk = Me) gave phosphonic acid CF3C(OH)2CHCHP(O)(OH)2 in 82% yield and trifluoromethylated 1,2,5,4-oxaphosphol-3-en
\\\\Expert2\\nbo\\Journal of Fluorine Chemistry\\2006, v.127, p.235.pdf
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18.

Вид документа : Статья из журнала
Шифр издания : 54/R 30
Автор(ы) : Korotaev V.Yu., Sosnovskikh V. Ya., Kutyashev I. B., Kodess M. I.
Заглавие : Reactions of 3-nitro-2-trihalomethyl-2H-chromenes with S-and N-nucleophiles. Synthesis and stereochemistry of 2,3,4-trisubstituted chromanes [Electronic resource]
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2006. - Vol. 55, № 2. - С. 317-330
Систем. требования: http://www.springerlink.com/content/x633528n25154252/fulltext.pdf
Примечания : 26.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reactions of 3-nitro-2-trifluoromethyl-and 3-nitro-2-trichloromethyl-2H-chromenes with thiols and aromatic amines proceed via the nucleophilic addition type to the activated double bond to form 2,3,4-trisubstituted chromanes in high yields. The stereoisomeric compositions and structures of the diastereomers were determined by 1H, 19F NMR and 2D NOESY spectroscopies and X-ray diffraction analysis
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2006, 55 (2), 317.pdf
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19.

Вид документа : Статья из журнала
Шифр издания : 54/A 10
Автор(ы) : Saloutina L. V., Zapevalov A. Ya., Saloutin V. I., Slepukhin P. A., Kodess M. I., Kirichenko V. E., Pervova M. G., Chupakhin O. N.
Заглавие : A route to fluorocontaining N,S-heterocycles via octafluoro-2,3-epoxybutane
Место публикации : Journal of Fluorine Chemistry. - 2007. - Vol. 128, № 7. - С. 769-778
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reaction of octafluoro-2,3-epoxybutane 1 with 2-aminothiophenol gave three kinds of novel fluorocontaining N,S-heterocyclic compounds depending on the solvent nature: 2,3-bis(trifluoromethyl)-3,4-dihydro-2H-1,4-benzothiazin-2-ol 2, 2-trifluoromethyl-2-[1-(2-aminophenylthio)-2,2,2-trifluoroethyl]-1,3-benzothiazolidine 6 and 5a,11a-bis(trifluoromethyl)-5a,6,11a,12-tetrahydro-5,11-dithia-6,12-diazanaphthacene 5. Use of the toluene, dioxane, tetrahydrofuran, acetonitrile and dimethoxyethane gave the unexpected dihydrobenzothiazine 2 (RS,SR RR,SS) in good to moderate yields. In dimethylsulfoxide and N,N-dimethylacetamide, unusual cyclization occurred resulting in benzothiazolidine 6 (RS,SR/RR,SS 1:1) in moderate yields. Formation of minor 1,1,1,3,4,4,4-heptafluoro-3-(2-aminophenylthio)-2,2-dihydroxybutane 4 which was converted into bis(benzothiazine) 5 was observed in all solvents tested with the exception of toluene and dioxane. The molecular structure of the RS,SR-diastereomer of dihydrobenzothiazine 2, bis(benzothiazine) 5 and the RS,SR-diastereomer of benzothiazolidine 6 has been established by X-ray crystallography.
\\\\Expert2\\nbo\\Journal of Fluorine Chemistry\\2007, v.128. p.769.pdf
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20.

Вид документа : Статья из журнала
Шифр издания : 24/S 83
Автор(ы) : Sosnovskikh V.Ya., Irgashev R. A., Khalymbadzha I. A., Slepukhin P. A.
Заглавие : Stereoselective hetero-Diels-Alder reaction of 3-(trifluoroacetil)chromones with ceclic enol ethers: synthesis of 3-aroyl-2-(trifluoromethyl)pyridines with omega-hydroxyalkyl groups
Место публикации : Tetrahedron Letters. - 2007. - Vol. 48, № 36. - С. 6297-6300
ББК : 24
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
\\\\Expert2\\nbo\\Tetrahedron Letters\\2007, v. 48, p.6297.pdf
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