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 Найдено в других БД:Труды сотрудников Института химии твердого тела УрО РАН (1)Публикации Чарушина В.Н. (34)
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1.
Инвентарный номер: нет.
   
   E 84


   
    Ethyl cyanoacetate as 1,3-bifunctional reagent in the pyrimidine to pyridine ring transformations [Text] / O. N. Chupakhin, V. L. Rusinov, A. A. Tumashov, E. O. Sidorov, I. V. Karpin // Tetrahedron Letters. - 1992. - Vol. 33, N 25. - P3695-3696
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: By using of the double-labelled C(*)H(*)-CH2-COOEt compound it has been proved that transformation of 6-nitro-1,2,4-triazolo[1,5-a]pyrimidine into 2-triazolylamino-3-carbethoxy-5-nitropyridine proceeds with incorporation of the C-C-N fragment of ethyl cyanoacetate into the pyridine ring

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2.
Инвентарный номер: нет.
   
   T 82


   
    Transformations of 5-diazo derivatives of 1,3-dimethyl-6-hydrazinouracil - new synthetic approaches to novel pyrimidine-derivatives [Electronic resource] / Y. A. Azev, O. L. Guselnikova, O. N. Chupakhin // Mendeleev Communications. - 1994. - N 6. - P208-209
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 1,3-Dimethyl-6-hydrazinouracil 1 gives hydrazones 2 with the corresponding aldehydes. Heating of 6-hydrazinouracil 1 in ethanol in the presence of hyrochloric acid results in the formation of N1, N2-bis(1,3-dimethyl-2,6-dioxopyrimid-4-yl)hydrazine 3, which gives the diazo derivative 4 on treatment with 2,4-diazido-6-cyanomethoxy-s-triazine in DMSO in the presence of triethylamine et room temperature

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3.
Инвентарный номер: нет.
   
   T 44


   
    Theoretical estimation of the possibility of formation of oxadiazocines in the nucleophilic addition of resorcinol to pyrimidines and synthesis of new azoloannelated benzooxadiazocines [Electronic resource] / E. V. Bartashevich, P. V. Plekhanov, G. L. Rusinov, V. A. Potemkin, A. V. Belik, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1999. - Vol. 48, № 8. - P1553-1557
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A method was proposed for estimating the possibility of cyclization of adducts of resorcinol with pyrimidines to form oxadiazocines based on the conformational criterion and analysis of charges on the C(5) atom of the pyrimidine ring and on the H atom of the hydroxy group of the resulting adducts. A series of new derivatives of 4,5-dihydro-11H-5,11-methanobenzo[g]azolo[1,3,5]oxadiazocines were synthesized.

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\1999, 48 (8), 1553.pdf
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4.
Инвентарный номер: нет.
   
   R 35


   
    Regiospecific cleavage of a triazole or pyrimidine ring in nitrotriazolo[1,5-a]pyrimidones [Electronic resource] / V. V. Voronin, E. N. Ulomskii, V. L. Rusinov, O. N. Chupakhin // Mendeleev Communications. - 1999. - Vol. 9, N 5. - P200-201 . - ISSN 0959-9436
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

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5.
Инвентарный номер: нет.
   
   B 57


   
    Biginelli condensations of fluorinated 3-oxo esters and 1,3-diketones [Text] / V. I. Saloutin, Ya. V. Burgart, O. G. Kuzueva, C. O. Kappe, O. N. Chupakhin // Journal of Fluorine Chemistry. - 2000. - Vol. 103, № 3. - P17-23
ББК 54
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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6.
Инвентарный номер: нет.
   
   S 98


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

\\\\expert2\\nbo\\Synthesis\\2000, № 12. p.1738.pdf
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7.
Инвентарный номер: нет.
   
   N 91


   
    Nucleophilic ring-opening of the azole and azine moieties in 6-nitro-1,2,4-triazolo[1,5-a]pyrimidin-7-ones [Electronic resource] / E. N. Ulomskii, V. V. Voronin, V. L. Rusinov, O. N. Chupakhin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2001. - Vol. 50, № 4. - P682-688
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The effects of the nature of the nucleophile and the structure of 6-nitrotriazolo[1,5-a]pyrimidinones on the direction of the ring opening were investigated. The triazole ring is opened under the action of strong bases, such as alkoxides or alkalis, to form 2-cyanoaminopyrimidinones and then 2-aminopyrimidinones. The results of the reactions with N-nucleophiles depend on the accessibility of position 5 of the heterocycle. Thus, sterically hindered secondary amines react with 5-methyltriazolopyrimidinones to give 2-guanidinopyrimidinones and then 2-aminopyrimidinones. In the absence of a substituent at position 5, the azine ring is opened to form 4-alkyl-3-amino-1,2,4-triazoles and 3-amino-2-nitroacrylamides. Under the action of primary amines, only the pyrimidine fragment is cleaved

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2001, 50 (4), 682.pdf
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8.
Инвентарный номер: нет.
   
   F 70


   
    Fluorocontaining 1,3-Dicarbonyl Compounds in the Synthesis of Pyrimidine Derivatives ?? [Electronic resource] / Ya. V. Burgart, O. G. Kuzueva, M. V. Pryadeina, C. O. Kappe, V. I. Saloutin // Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2001. - Vol. 37, № 6. - P869-880
ББК 54
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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9.
Инвентарный номер: нет.
   
   S 98


   
    Synthesis of (7-polyfluoroalkyl)pyrazolo[1,5-a]pyrimidines based on lithium fluorine-containing beta-diketonates [Electronic resource] / V. I. Filyakova, O. A. Kuznetsova, E. N. Ulomskii, T. V. Rybalova, M. I. Kodess, V. L. Rusinov, K. I. Pashkevich // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2002. - Vol. 51, № 2. - P332-336
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reactions of Li enolates of fluorine-containing -diketones with 3-aminopyrazoles afforded (7-polyfluoroalkyl)pyrazolo[1,5-a]pyrimidines. The structure of 3-bromo-2-methyl-5-phenyl-7-trifluoromethylpyrazolo[1,5-a]pyrimidine was established by X-ray diffraction analysis

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2002, 51 (2), 332.pdf
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10.
Инвентарный номер: нет.
   
   R 30


   
    Reaction of fullerene C60 with 2-azido-4,6-diphenylpyrimidine [Electronic resource] / I. P. Romanova, G. G. Yusupova, D. G. Yakhvarov, O. A. Larionova, N. N. Mochul`skaya, L. P. Sidorova, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2003. - Vol. 52, № 10. - P2171-2174
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The first representative of the pyrimidine-substituted [60]fullereno[1,2-b]aziridines was synthesized by the reaction of fullerene C60 with 2-azido-4,6-diphenylpyrimidine. 2-(Azahomo[60]fullereno)-4,6-diphenylpyrimidine was found to be formed as a by-product. The electrochemical properties of the adducts were studied

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2003, 52 (10), 2171.pdf
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