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1.

Вид документа : Статья из журнала
Шифр издания : 54/Z 99
Автор(ы) : Chupakhin O. N., Kozhevnikov V. N., Kozhevnikov D. N., Rusinov V. L.
Заглавие : [1,5]Sigmatropic shift of hydrogen in amination of 3-pyrrolidino-1,2,4- triazine 4-oxide
Место публикации : Tetrahedron Letters. - 1999. - Vol. 40, № 33. - С. 6099-6100
Примечания : Bibliogr. : p. 6100 (11 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reaction of 3-pyrrolidino-1,2,4-triazine 4-oxide with ammonia leads to the product of tele-substitution of pyrrolidine - 5-amino-1,2,4-triazine 4-oxide. Sigmatropic shift of hydrogen postulated for such reactions has been proved by isolation of key intermediates.
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2.

Вид документа : Статья из журнала
Шифр издания : 54/Z 99
Автор(ы) : Zyryanov G. V., Rusinov V. L., Chupakhin O. N.
Заглавие : Easy formation of S-N(H) products in reactions of indoles and pyrroles with 3-aryl-1,2,4-triazin-5(2H)-ones in the presence of tosyl chloride [Electronic resource]
Место публикации : Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2002. - Vol. 51, № 6. - С. 1042-1044
Систем. требования: http://www.springerlink.com/content/l83388373356353t/fulltext.pdf
Примечания : 27.10.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The reactions of 3-aryl-1,2,4-triazin-5(2H)-ones with indoles and pyrroles in the presence of p-toluenesulfonyl chloride afforded 3-aryl-6-hetaryl-1,2,4-triazin-5(2H)-ones in high yields. The latter are products of the nucleophilic substitution of hydrogen
\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2002, 51 (6), 1042-1044.pdf
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3.

Вид документа : Статья из журнала
Шифр издания : 54/W 20
Автор(ы) : Rusinov V. L., Rusinova O. V., Kryazhev S. G., Shchegol'kov E. V., Alysheva E. I., Borisovskii S. E.
Заглавие : Wall-rock metasomatism of carbonaceous terrigenous rocks in the Lena gold district
Место публикации : Geology of Ore Deposits. - 2008. - Vol. 50, № 1. - С. 1-40
Примечания : Bibliogr. : p. 40 (54 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
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4.

Вид документа : Статья из журнала
Шифр издания : 54/W 20
Автор(ы) : Rusinova O. V., Rusinov V. L., Syngaevskii E.D., Bochek L.I., Lapina M.I., Vasyuta Yu. V.
Заглавие : Wall Rock Metasomatism and Formation Conditions of the Silver-Polymetallic Bol'shoi Kanimansur Deposit (Tadjikistan)
Место публикации : Geology of Ore Deposits. - 2001. - Vol. 43, № 5. - С. 386-405
Примечания : Bibliogr. : p. 405 (20 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
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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5.

Вид документа : Статья из журнала
Шифр издания : 54/W 20
Автор(ы) : Rusinova O. V., Rusinov V. L., Abramov S. S., Kuznetsova S. V., Vasyuta Yu. V.
Заглавие : Wall Rock Alterations and Physicochemical Conditions of the Sovetsk Gold Deposit Formation (Enisei Ridge)
Место публикации : Geology of Ore Deposits. - 1999. - Vol. 41, № 4. - С. 276-294
Примечания : Bibliogr. : p. 294 (24 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The mode of distribution of carbonaceous matter (CM) and specific characteristics of the metasomatic zonation were studied, as well as physicochemical conditions of the ore deposition and wall rock alteration at the Sovetsk gold deposit. The deposit relates to the quartz vein low-sulfide type and is hosted by carbonaceous rock sequences ("black shales") within a wide shear zone. This shear zone spreads along the regional Ishimbin strike-slip deep fault. The Proterozoic Tatarsk-Ayakhtin granitic complex, intruding the ore bearing rocks, composes the core of the ore district. Granites compose a pluton roof, where Olimpiada and Veduga gold deposits occur, and in contact zones the Eldorado and Pereval'ninsk deposits are located. The Sovetsk deposit is situated farther from the pluton contacts. The rocks of the ore-bearing sequence are metamorphosed in the chlorite-muscovite greenschists facies. A specific feature of wall rock alteration is unclear lateral metasomatic zonation with gradual transition between zones and alternating bands of strong and weak alterations. The main metasomatic minerals are muscovite and chlorite. Quartz and carbonate are subordinate, and ilmenite, rutile, monoclinic, and hexagonal pyrrhotites are accessories. Above ore bodies turmaline is rather common, but inside and below ore bodies albite occurs. The distribution and zonation of metasomatic parageneses allow us to call this kind of wall rock alteration as "disseminated metasomatism." The rock alteration developed sinchroneously with dynamic metamorphism in the strongly anisotropic sheared rocks. The absence or low intensity of acidic metasomatism is an important feature of the deposit. The temperature of metamorphism was 500-460°C, of wall rock alteration - 460-350°C, and of ore deposition (from early to late stages) from 380 to 150°C. The disseminated CM was metamorphosed to the low graphitic stage, and the condensed CM in veinlets corresponds to the late antracitic stage. The fugacity of oxygen and sulfur in the fluids was estimated with ilmenite = rutile + pyrrhotite equilibrium, composition of pyrrhotite and chlorite. The oxygen fugacity was lower than that of the ilmenite-magnetite buffer, and sulfur fugacity was lower than that of the pyrite-pyrhothite buffer. Nearer to the ore bodies the sulfur fugaeity increases, and inside ore bodies it corresponds to the pyrite + pyrrhotite paragenesis. The calculations of the oxygen fugacity with the gas composition in the system C-O-H suggests that the ratios CO2/CH4/H2O are close to the QFM and ilmenite-magnetite buffers and similar to that received with some mineral fugometers. Hydrocarbons with 2-4 carbon atoms appear not to be in equilibrium with CO2. The variation intervals of pH, fo2 and (before the ore deposition) of T are rather narrow. The pressure under metamorphism exceeded 1.9 kbar, but it decreased to the beginning of ore deposition to 0.7 kbar. This means that ores were deposited in an extension environment.
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6.

Вид документа : Статья из журнала
Шифр издания : 54/U 52
Автор(ы) : Kopchuk D. S., Khasanov A. F., Kovalev I. S., Zyryanov G. V., Rusinov V. L., Chupakhin O. N.
Заглавие : Unexpected reduction of the nitro group in (3-nitrophenyl)-1,2,4-triazines during their aza-Diels–Alder reaction with 1-morpholinocyclopentene
Место публикации : Mendeleev Communications. - 2013. - Vol.23, №4. - С. 209-211
Примечания : Bibliogr. : p. 211 (15 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): 1,2,4-triazines--nitro group--morpholinocyclopentene
Аннотация: Unexpected reduction of the nitro group to the amino one during aza-Diels–Alder reaction between (3-nitrophenyl)-1,2,4-triazines and 1-morpholinocyclopentene (neat, 200 °C, argon) occurred to furnish 4-(3-aminophenyl)-6,7-dihydro-5H-cyclopenta[c]pyridines
\\\\expert2\\NBO\\Mendeleev Communications\\2013, v.23, p. 209.pdf
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7.

Вид документа : Статья из журнала
Шифр издания : 54/T 86
Автор(ы) : Loginova S. Ya., Borisevich S. V., Maksimov B. A., Bondarev V. P., Kotovskaya S. K., Rusinov V. L., Charushin V. N., Chupakhin O. N.
Заглавие : Triazaverin prophylactic efficacy against influenza virus A (H5N1)
Место публикации : Antibiotiki i Khimioterapiya . - 2010. - Vol.55, №9-10. - С. 25-28
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Ключевые слова (''Своб.индексиров.''): antiviral efficacy--influenza virus a--prophylaxis
Аннотация: The experimental study of the prophylactic efficacy of Triazaverin against the experimental form of the influenza virus A (H5N1) on albino mice intranasally infected with the influenza virus A/Chicken/Kurgan/Russia/02/05 vs. the reference drugs Tamiflu ®, Remantadin and Arbidol ® showed that in doses of 1 to 100 mg/kg it was efficient in the animal protection from death. The drug was also efficient in the urgent prophylaxis. Triazaverin effectively inhibited the influenza A virus multiplication in the lungs of the albino mice
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8.

Вид документа : Статья из журнала
Шифр издания : 54/T 82
Автор(ы) : Kozhevnikov D. N., Kozhevnikov V. N., Kovalev I. S., Rusinov V. L., Chupakhin O. N., Aleksandrov G. G.
Заглавие : Transformations of 1,2,4-Triazines in Reactions with Nucleophiles: V. SNH and ipso-Substitution in the Synthesis and Transformations of 5-Cyano-1,2,4-triazines [Electronic resource]
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2002. - Vol. 38, № 5. - С. 744-750
Систем. требования: http://www.springerlink.com/content/wtt6x5723250g717/fulltext.pdf
Примечания : 1.11.2011 г.
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The scope of functionalization of 1,2,4-triazines can be considerably extended via successive nucleophilic substitution of hydrogen (SN H) and ipso-substitution. A convenient procedure has been developed for direct cyanation of 1,2,4-triazine 4-oxides with acetone cyanohydrin in the presence of triethylamine. The cyano group in the resulting 5-cyano-1,2,4-triazines is readily replaced by reactions with various aliphatic alcohols and amines
\\\\Expert2\\nbo\\Russian Journal of Organic Chemistry\\2002, 38 (5), 744.pdf
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9.

Вид документа : Статья из журнала
Шифр издания : 54/T 82
Автор(ы) : Rusinov V. L., Kozhevnikov D. N., Kovalev I. S., Chupakhin O. N., Aleksandrov G. G.
Заглавие : Transformations of 1,2,4-triazines in reactions with nucleophiles: IV. Nucleophilic substitution of hydrogen in 1,2,4-triazine 4-oxides under acylation conditions
Место публикации : Russian Journal of Organic Chemistry (Translation of Zhurnal Organicheskoi Khimii). - 2000. - Vol. 36, № 7. - С. 1050-1060
Примечания : Bibliogr. : p. 1060 (13 ref.)
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
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10.

Вид документа : Статья из журнала
Шифр издания : 54/T 82
Автор(ы) : Kozhevnikov D. N., Kataeva N. N., Rusinov V. L., Chupakhin O. N., Aleksandrov G. G.
Заглавие : Transformations of 1,2,4-triazine 4-oxides to pyridazines and triazolo[4,3-b]pyridazines by the action of substituted acetonitriles [Electronic resource]
Место публикации : Mendeleev Communications. - 2005. - Vol. 15, № 1. - С. 31-33
Систем. требования: http://www.sciencedirect.com/science/article/pii/S0959943605701711
Примечания : 11.10.2011
ББК : 54
Предметные рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Two types of ring transformations of 1,2,4-triazine to pyridazine were found: 1,2,4-triazine 4-oxides bearing ortho-halophenyl in the 3-position react with phenylacetonitrile under basic conditions to form 3-(2-oxyphenyl)[1,2,4]triazolo[4,3-b]pyridazines, while the reactions of 3,6-diaryl-1,2,4-triazin 4-oxides with sodium ethyl cyanoacetate afforded 2-aminopyridazines.
\\\\Expert2\\nbo\\Mendeleev Communications\\2005, v.15, p.31.pdf
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