Russian Journal of General Chemistry

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Synthesis of N,7-diaryl-5-methyl-4,7-dihydro-1,2,4-triazolo[1,5-a]-pyrimidine-6-carboxamides
Russian Journal of General Chemistry - Tập 84 - Trang 82-85 - 2014
V. L. Gein, T. M. Zamaraeva, M. I. Vakhrin
Reaction of N-arylamides of acetoacetic acid with aromatic aldehyde and 3-amino-1,2,4-triazole derivatives has resulted in N,7-diaryl-5-methyl-4,7-dihydro-1,2,4-triazolo[1,5-a]pyrimidine-6-carboxamides.
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.
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
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.
Structural and kinetic regularities of thermal decomposition of gem-trinitromethylazoles in the liquid phase
Russian Journal of General Chemistry - Tập 77 - Trang 1933-1938 - 2007
R. S. Stepanov, L. A. Kruglyakova, A. M. Astakhov
Kinetics of liquid-phase thermal decomposition of a series of triazoles and tetrazoles containing a gem-trinitromethyl group were studied by manometry and photoelectrocolorimetry, and the mechanism of the thermal decomposition was established. The activation parameters of the rate-limiting stage of the process were evaluated. It was shown that the thermal stability of the gem-trinitromethyl group ... 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.
Crystal solvates of porphyrins and metalloporphyrins
Russian Journal of General Chemistry - Tập 82 - Trang 1298-1306 - 2012
E. V. Antina, A. I. V’yugin
The published data on the crystal solvates with nonpolar aromatic and electron-donor compounds obtained using different research methods as well as our own experimental results obtained by thermogravimetric analysis of the porphyrins and metalloporphyrins of natural and synthetic origin are generalized. The influence of the molecular structure of the porphyrins and metalloporphyrins on the composi... hiện toàn bộ
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
Arylbiguanides in Heterocyclization Reactions
Russian Journal of General Chemistry - Tập 75 - Trang 303-310 - 2005
D. V. Kryl’skii, Kh. S. Shikhaliev, A. S. Shestakov, M. M. Liberman
The reactions of arylbiguanides with acetyacetone derivatives were used to obtain N-(pyrimidin-2-yl)-N′-arylguanidines, and the reactions with acetoacetic ester derivatives (depending on the structure of the keto esters), N-aryl-N′-(4-oxo-3,4-dihydropyrimidin-2-yl)guanidines or 2-amino-4-arylamino-6-aryl(heteryl)-sulfanylmethylene-1,3,5-triazines. The N-aryl-N′-heterylguanidines formed by the reac... hiện toàn bộ
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.
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