Russian Journal of General Chemistry

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Influence of the structure of the macroheterocyclic ligand on the catalytic properties of metal tetraarenoporphyrazine complexes: III. Oxidative decarboxylation of oxalic acid
Russian Journal of General Chemistry - - 2004
A. B. Korzhenevskii, T. G. Shikova, O. I. Koifman, V. V. Bykova
The catalytic activity of cobalt complexes of a series of tetraarenoporphyrazines in oxidative decarboxylation of oxalic acid under heterogeneous conditions was studied. The structure of the macroheterocycle exerts a significant effect on the catalytic properties of the metal complexes.
Coordination properties of trimeric porphyrin in acetic acid
Russian Journal of General Chemistry - Tập 85 - Trang 1470-1473 - 2015
E. M. Kuvshinova, I. A. Vershinina, S. A. Syrbu
Trimeric porphyrin H6TP as well as its binuclear Cu2H2TP and trinuclear Cu3TP copper complexes have been prepared. Kinetic features of H6TP and Cu2H2TP complexes formation with copper(II) acetate in acetic acid as well as dissociation kinetics of Cu2H2TP and Cu3TP in acetic acid medium in the presence of sulfuric acid have been studied.
New complexes of 3,4-dimethoxyphenylacetic acid with selected transition metal ions: Spectral, thermal, and magnetic properties
Russian Journal of General Chemistry - Tập 87 - Trang 2045-2055 - 2017
W. Ferenc, D. Osypiuk, B. Cristóvão, J. Sarzyński, H. Głuchowska
3,4-Dimethoxyphenylacetates of Mn(II), Co(II), Ni(II), Cu(II), and Zn(II) of general formula M(C10H11O4)2·nH2O, where n = 1, 2 or 4 depending on M(II) ions, are obtained. The complexes crystallize in monoclinic or triclinic systems. The carboxylate groups act as bidentate chelating or bridging ligands. On heating in the air (293–1173 K) they decompose in three steps finally forming oxides of the c...... hiện toàn bộ
Reactions of Trimethylsilyl Isocyanate with Alcohols and Phenols
Russian Journal of General Chemistry - Tập 71 - Trang 325-326 - 2001
M. A. Pudovik, N. E. Krepysheva, D. I. Kharitonov, A. N. Pudovik
Mono- and diphenols add to trimethyl isocyanate on heating to give the corresponding aryl urethanes. Ethanol reacts with trimethylsilyl isocyanate to give ethyl urethane and ethyl allophanate in a ratio determined by reaction conditions.
Synthesis and characterization of some novel substituted pyridones and iminopyridines derived from pyrene moiety
Russian Journal of General Chemistry - - 2015
Nagy M. Khalifa, Mohamed A. Al-Omar, Ashraf A. Sediek
Synthesis and characterization of some novel 7-(aryl)-3-phenyl-6-(1H-tetrazol-5-yl)-5H-thiazolo[3,2-a]pyrimidin-5-one derivatives
Russian Journal of General Chemistry - Tập 87 - Trang 1618-1620 - 2017
N. M. Khalifa, M. A. Al-Omar, A. E. Amr
A series of novel tetrazole derivatives containing fused thiazolo[3,2-a]pyrimidines were synthesized in a one-pot three-component reaction of 7-(aryl)-5-oxo-3-phenyl-5H-thiazolo[3,2-a]pyrimidine-6-carbonitriles with sodium azide and ammonium chloride.
Carbon sorbents for immobilization of tritium-containing waste oils
Russian Journal of General Chemistry - Tập 81 - Trang 1999-2006 - 2011
A. B. Sazonov, Aung Djo Thun, E. P. Magomedbekov, A. V. Ponomarev, I. G. Tananaev, B. F. Myasoedov
Emission of tritium from the pump oil-carbon sorbent-cement compositions (where the carbon sorbent is thermally expanded graphite or charcoal fabricated by thermal or radiation evaporation of a cellulose material) was studied. The compositions are characterized by a high hold-up ability with respect to oil components, when the matrix is contacted with water. The apparent diffusion coefficients of ...... hiện toàn bộ
Unexpected formation of 6,7-dihydrobenzo[4′,5′]imidazo-[1′,2′: 1,6]pyrimido[5,4-a]indolizine derivative in the alkylation of 2-amino-1-(benzimidazol-2-yl)-3-(4-methoxybenzoyl)indolizine
Russian Journal of General Chemistry - Tập 81 - Trang 2172-2175 - 2011
T. A. Saraeva, G. E. Khoroshilov, V. S. Brovarets, R. I. Zubatyuk, O. V. Shishkin
An attempt to effect exhaustive alkylation of 2-amino-1-(benzimidazol-2-yl)-3-(4-methoxybenzoyl) indolizine with alkyl iodides in boiling acetone led to the formation of 6,6-dimethyl-8-(4-methoxybenzoyl)-6,7-dihydrobenzo[4′,5′]imidazo[1′,2′: 1,6]pyrimido[5,4-a]indolizine instead of expected N-alkyl derivatives. The product structure was proved by X-ray analysis.
Theoretical approaches to prediction of polymer properties
Russian Journal of General Chemistry - Tập 81 - Trang 268-276 - 2011
S. I. Kuchanov
A brief introduction to statistical theory of polymers was provided in a popular manner, with emphasis on quantitative description of polymer liquids. This is essential in view of fact that (1) samples of synthetic polymers differ fundamentally from those of low-molecular-weight compounds by normally several orders of magnitude higher molecular weights and that (2) polymer products represent a set...... hiện toàn bộ
Biphasic catalysis in petrochemical processes
Russian Journal of General Chemistry - Tập 79 - Trang 1370-1383 - 2009
E. A. Karakhanov, A. L. Maksimov
Main features of the concept of homogeneous metal complex biphasic catalysis are considered. Different techniques for immobilization of metal complexes in water, ionic liquids, supercritical carbon dioxide, and fluorous solvents are discussed. The use of discussed approaches in petrochemical processes is analyzed.
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