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1.
Инвентарный номер: нет.
   
   Z 99


   
    [4+2]-Cycloaddition of 3,6-bis(3,5-dimethyl-4-R-pyrazol-1-yl)-1,2,4,5-tetrazines with alkenes [Electronic resource] / G. L. Rusinov, R. I. Ishmetova, N. I. Latosh, I. N. Ganebnuikh, O. N. Chupakhin, V. A. Potemkin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2000. - Vol. 49, № 2. - P355-362
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: A number of 1,4-dihydropyridazines and pyridazines were prepared by the Diels-Alder reaction with an inverse electron demand from cyclic heterodiene systems, 3,6-bis(3,5-dimethyl-4-R-pyrazol-1-yl)-1,2,4,5-tetrazines, and some enamines as well as from 4-vinylpyridine, butyl vinyl ether, phenylacetylene, and acrylamide. The reaction of 3,6-bis(3,5-dimethylpyrazol-1-yl)-1,2,4,5-tetrazine with styrene afforded 4,5-dihydropyridazine, which was readily oxidized by atmospheric oxygen to form the corresponding pyridazine. Electron-withdrawing substituents (Br or Cl) in the pyrazole rings accelerate [4+2]-cycloaddition. When heated, 1,4-dihydropyridazines, which were synthesized from tetrazines and enamines, eliminated amine to give pyridazines. The reactivities of tetrazines were evaluated by quantum-chemical methods.

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2000, 49 (2), 355.pdf
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2.
Инвентарный номер: нет.
   
   Z 99


   
    [4+2] Cycloaddition reactions of 1,2,4,5-tetrazines with allylcarboranes [Electronic resource] / G. L. Rusinov, R. I. Ishmetova, S. G. Tolshchina, N. K. Ignatenko, I. N. Ganebnuikh, P. A. Slepukhin, V. A. Ol'shevskaya, V. N. Kalinin, V. N. Charushin // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2010. - Vol. 59, № 1. - P116-121
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
ALLYLCARBORANES -- PYRIDAZINES -- [4+2] CYCLOADDITION????
Аннотация: The [4+2] cycloaddition reactions of 3,6-disubstituted 1,2,4,5-tetrazines with 9-allyl-1,7-,9-allyl-1,2-dicarba-closo-dodecaboranes and 1-allyl-2-isopropyl-1,2-dicarba-closo-dodecab-orane have been studied. The pyridazines containing carborane cage have been synthesized for the first time

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2009, 59 (1), 116-121.pdf
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3.
Инвентарный номер: нет.
   
   S 67


    Slepukhin, P. A.
    X-ray structural investigation of the products of ring closure of 2-alkenylthiopyridines upon treatment with mercury iodide [Electronic resource] / P. A. Slepukhin, D. G. Kim, V. N. Charushin // Journal of Structural Chemistry. - 2008. - Vol. 49, № 6. - P1144-1148
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The products of the reaction of 2-alkenylthiopyridines with mercury iodide have been studied by single crystal X-ray diffraction. It has been demonstrated that the products are organomercury derivatives of salts of 2,3-dihydrothiazolo[3,2-a]pyridinium

\\\\Expert2\\nbo\\Journal of Structural Chemistry\\2008, V. 49, N 6, p.1144.pdf
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4.
Инвентарный номер: нет.
   
   X 10


   
    X-ray diffraction study of 1,5-bis-(4',4',4'-trifluoro-1'-methyl-3'-oxo-but-1'-enylamino)-3-oxapentane [Electronic resource] / P. A. Slepukhin, N. S. Boltacheva, V. I. Filyakova, V. N. Charushin // Journal of Structural Chemistry. - 2011. - Vol. 52, № 2. - P443-444. - Bibliogr. : p. 444 (3 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Specific features of the molecular and crystal structures of 1,5-bis-(4?,4?,4?-trifluoro-1?-methyl-3?-oxo-but-1?-enylamino)-3-oxapentane are determined by single crystal XRD

\\\\Expert2\\nbo\\Journal of Structural Chemistry\\2011, V. 52, N 2, p.443-444.pdf
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5.
Инвентарный номер: нет.
   
   M 20


    Makosza, M.
    Vicarious nucleophilic substitution of hydrogen in aldehydes and Knoevenagel reaction of iminium salts with ?-halocarbanions [Electronic resource] / M. Makosza, D. N. Kozhevnikov // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 2001. - Vol. 50, № 11. - P2236-2238
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Iminium salts derived from aromatic aldehydes react with -chlorocarbanions via two different pathways: reaction with secondary carbanion of halomethyl sulfones proceeds as the Knoevenagel condensation, while tertiary -chlorocarbanions gave products of vicarious nucleophilic substitution of hydrogen in parent aldehydes

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\2001, 50 (11), 2236.pdf
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6.
Инвентарный номер: нет.
   
   V 29


   
    Variation in the sorption energy of estes of N-perfluoroalkanoic acids on chromatographic phases of different polarity [Electronic resource] / E. P. Promyshlennikova, V. E. Kirichenko, K. I. Pashkevich, D. N. Grigoreva, R. V. Golovina // Russian Chemical Bulletin (Translation of Izvestiya Akademii Nauk, Seriya Khimicheskaya). - 1993. - Vol. 42, N 12. - P1963-1967
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ

\\\\Expert2\\nbo\\Russian Chemical Bulletin\\1993, 42 (12), 1963-1967.pdf
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7.
Инвентарный номер: нет.
   
   N 64


    Nikitin, E. D.
    Vapor - Liquid Critical Properties of Some Tetraalkoxysilanes [Electronic resource] / E. D. Nikitin, V. A. Simakina, A. P. Popov // Journal of Chemical & Engineering Data. - 2008. - Vol. 53, № 6. - P1371-1374 : рис., табл. - Библиогр. : с. 1374 (17 назв.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: The critical pressures and the critical temperatures of ten tetraalkoxysilanes (tetraalkyl esters of silicic acid) Si[O(CH2)nH]4 with n = 1 to 10 have been measured. All the substances studied begin to decompose at temperatures below their critical points. The method of pulse-heating applicable to thermally unstable compounds has been used. Residence times were from (0.03 to 1) ms, which resulted in little decomposition of the substances during measuring. The experimental critical properties of tetraalkoxysilanes have been compared with the values estimated by the group-contribution methods of Lydersen and Nannoolal et

\\\\Expert2\\nbo\\Journal of Chemical and Engineering Data\\2008, v.53, p. 1371.pdf
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8.
Инвентарный номер: нет.
   
   U 92


   
    Utilization of polychlorinated biphenyls with the use of chemical and biological processes [Electronic resource] / D. O. Egorova, E. G. Plotnikiva, A. V. Mekhaev, Yu. G. Yatluk, V. A. Demakov, O. N. Chupakhin // Doklady Chemistry. - 2011. - Vol.441, №1. - P334-337
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Кл.слова (ненормированные):
POLYCHLORINATED BIPHENYLS -- UTILIZATION

\\\\Expert2\\nbo\\Doklady Chemistry\\2011, v. 441, N 1, p. 334-337.pdf
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9.
Инвентарный номер: нет.
   
   U 88


   
    Use of tandem AN-AN reactions for the synthesis of thiazolo[4,5-e]-1,2,4-triazines [Electronic resource] / V. N. Charushin, N. N. Mochul`skaya, A. A. Andreiko, M. I. Kodess, O. N. Chupakhin // Mendeleev Communications. - 2002. - Vol. 12, № 1. - P28-29
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: 3-Aryl-1,2,4-triazines react with thioamides in acetic anhydride to produce thiazolo[4,5-e]-1,2,4-triazine derivatives and this reaction represents a new method for the fusion of thiazole and 1,2,4-triazine rings based on the nucleophilic ortho-diaddition type (AN-AN) cyclization reactions??????

\\\\expert2\\nbo\\Mendeleev Communications\\2002, v.12, N 1. p.28.pdf
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10.
Инвентарный номер: нет.
   
   U 67


   
    Upconversion luminescence in Er3+/Yb3+ codoped Y2CaGe4O12 [Electronic resource] / I. I. Leonidov, V. G. Zubkov, A. P. Tyutyunnik, N. V. Tarakina, L. L. Surat, O. V. Koryakova, E. G. Vovkotrub // Journal of Alloys and Compounds. - 2011. - Vol. 509, № 5. - P1339-1346. - Bibliogr. : p. 1345-1346 (52 ref.)
ББК 54
Рубрики: ХИМИЧЕСКИЕ НАУКИ
Аннотация: Calcium yttrium tetrametagermanates Y2CaGe4O12 doped with Er3+ and Er3+/Yb3+ reveal upconversion emission in visible spectral range under near-infrared excitation, ex = 980 nm. For the solid solution ErxY2?xCaGe4O12 concentration dependencies for the green and red lines of the visible emission around 526 nm (2H11/2 4I15/2), 545 nm (4S3/2 4I15/2) and 670 nm (4F9/2 4I15/2) show the optimal value for the sample x = 0.2. The power dependence of the visible luminescence measured at room temperature in the low-power limit indicates two-photon upconversion process. Direct intensification of the upconversion emission signals has been achieved by ytterbium sensitizing. The other upconversion excitation mechanism in Y2CaGe4O12:Er3+ is discussed for an 808 nm incident laser irradiation. A scheme of excitation and emission routes involving ground/excited state absorption, energy transfer upconversion, nonradiative multiphonon relaxation processes in trivalent lanthanide ions in Y2CaGe4O12:Er3+ and Y2CaGe4O12:Er3+, Yb3+ has been proposed. Conditions for visible emission occurrence under quasi-resonance ex = 1064 nm excitation depending on pump power values are considered. In the low-power regime only near-infrared emission caused by the transition 4I13/2 4I15/2 in erbium ions has been detected

\\\\Expert2\\nbo\\Journal of Alloys and Compounds\\2011, v.509, N 5, p.1339.pdf
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