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1.
Voronezh' Civil-Engineering Institute. Translated from Prikladnaya Mekhanika, Vol. 27, No. 1, pp. 89–95, January, 1991. 相似文献
2.
N. G. Komissarova N. G. Belenkova L. V. Spirikhin O. V. Shitikova M. S. Yunusov 《Chemistry of Natural Compounds》2002,38(1):58-61
Oxidation of betulin by pyridinium dichromate, pyridinium chlorochromate, and K2Cr2O7 -H2SO4 in the presence of tetrabutylammonium bromide was studied. Products of regioselective C-3, C-28-, and exhaustive oxidation, 28-hydroxylup-20(29)-3-one, 3-hydroxy- and 3-oxolup-20(29)-en-28-al were obtained. 相似文献
3.
L. M. Khalilov O. V. Shitikova V. S. Sultanova V. A. Dokichev C. Z. Sultanov A. A. Panasenko U. M. Dzhemilev G. A. Tolstikov 《Russian Chemical Bulletin》1990,39(3):481-484
The13C NMR spectra of 15 spirocyclopropane derivatives in the (C7)-norbornane series have been investigated, signal assignments made, and the stereochemistry of isomeric products has been determined. It was found that the methylene group signals in the cyclopropane fragment may be used as criteria in making the stereochemical assignments.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 555–559, March, 1990. 相似文献
4.
L. M. Khalilov O. V. Shitikova R. I. Khusnutdinov Z. S. Muslimov U. M. Dzhemilev A. A. Panasenko G. A. Tolstikov 《Russian Chemical Bulletin》1990,39(3):484-488
The structures of the dimerization products of spiro(bicyclo[2.2.1]hepta-2,5-diene-7,1-cyclopropane) have been solved using13C NMR spectroscopy and their stereochemical assignments made. The methylene carbon atom signals for the spirocyclopropane fragment can be used as diagnostic signals in making the stereochemical assignments.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 3, pp. 559–564, March, 1990. 相似文献
5.
Valiullina Z. R. Ivanova N. A. Shitikova O. V. Miftakhov M. S. 《Russian Journal of Organic Chemistry》2019,55(8):1131-1135
Russian Journal of Organic Chemistry - Methyl (Z)-3-[(2R,3R,4S,5S)-5-(2-methoxy-2-oxoethyl)-3,4-(isopropylidenedioxy)tetrahydrofuran-2-yl]-prop-2-enoate was synthesized, and its intramolecular... 相似文献
6.
I. G. Konkina O. V. Shitikova A. N. Lobov Yu. I. Murinov S. O. Bachurin 《Russian Chemical Bulletin》2015,64(6):1385-1393
Electronic, IR, and NMR spectroscopy methods were used to study the interaction in the β-glycyrrhizic acid (GA)–2,8-dimethyl-5-[2´-(6″-methylpyridin-3″-yl)ethyl]-2,3,4,5-tetra-hydro-1H-pyrido[4,3-b]indole (Dim) system in an alcoholic medium. The complete assignment of signals in the 1H and 13C NMR spectra of Dim and GA in CD3OD was made for the individual components and for thier mixtures at different ratios. These data suggest the formation of a host–guest complex in this system. It is hypothesized that associates of GA molecules interact with Dim through Δ12,13–carbonyl group conjugated bonds in the triterpene moiety of GA that interact with the aromatic systems of the indole and pyridine moieties of Dim, as well as via an acid-base mechanism involving mainly the carboxy groups of glucuronic acid residues in the carbohydrate part of GA and the nitrogen atom of the tetrahydropyridine ring of Dim. 相似文献
7.
L. M. Khalilov M. É. Adler O. V. Shitikova M. S. Miftakhov G. A. Tolstikov 《Chemistry of Natural Compounds》1991,27(1):108-113
The diastereomeric effects on the13C NMR chemical shifts of thirteen epimeric pairs of 16-aryloxy-11-deoxyprostaglandins of the E1 and F1 series caused by the change in the configuration of the 15-hydroxy group, which are differential parameters for assigning epimers to the 15- and 15-stereochemical series, have been determined.For Communication (VIII), see [1].Institute of Chemistry, Bashkir Scientific Center, Urals Branch, Academy of Sciences of the USSR, Ufa. Translated from Khimiya Prirodnykh Soedinenii, No. 1, pp. 123–128, January–February, 1991. 相似文献
8.
L. M. Khalilov O. V. Shitikova A. A. Gimaev R. I. Khusnutdinov U. M. Dzhemilev A. A. Panasenko G. A. Tolstikov 《Russian Chemical Bulletin》1990,39(9):1792-1796
13C NMR spectra have been obtained for six isomers of bicyclo[2.2.1]heptadiene (norbornadiene) trimers, and a complete stereochemical assignment of these isomers has been made by means of a computer-assisted calculation of chemical shifts.Translated from Izvestiya Akademii Nauk SSSR, Seriya Khimicheskaya, No. 9, pp. 1973–1978, September, 1990. 相似文献
9.
G. Yu. Ishmuratov A. Kh. Shayakhmetova M. P. Yakovleva Yu. V. Legostaeva O. V. Shitikova E. G. Galkin G. A. Tolstikov 《Russian Journal of Organic Chemistry》2007,43(8):1114-1119
Hydroxylamine hydrochloride efficiently reduces peroxide products of olefins ozonolysis into carbonyl compounds. Depending on the substrate character, solvent, and the treatment conditions the arising aldehydes transformed along the route aldehyde→aldoxime→nitrile→ester into individual compounds or their mixtures, or give the corresponding acetals. 相似文献
10.
The effect of coupling of the usual particle-hole states to particle-hole states built above a collective state on the decay characteristics and structure of a giant resonance with higher isospin (T
>) has been estimated. Numerical calculations are carried out for60Ni,90Zr and208Pb. 相似文献