Zobrazeno 1 - 10
of 807
pro vyhledávání: '"O. S. Chizhov"'
Autor:
V. I. Kadentsev, Alexander O. Chizhov, I. D. Nesterov, N. G. Kolotyrkina, N. D. Chuvylkin, O. S. Chizhov, A. A. Kutin, L. E. Golubovskaya, V. M. Rzheznikov
Publikováno v:
European Journal of Mass Spectrometry. 13:207-211
Collision-induced fragmentation of the [M + Na]+ and [M + H]+ ions generated from 3-[4- bis-N,N-(2-chloroethyl)aminophenyl]-acetates in the estrane series under electrospray/ionization was studied. Some regularities in fragmentation pathways dependin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::03e553c68e9c093660bd0497244df589
https://doi.org/10.1255/ejms.872
https://doi.org/10.1255/ejms.872
Autor:
Andrew J. Reason, Stuart M. Haslam, O. S. Chizhov, Howard R. Morris, Anatolii I. Usov, Anne Dell, Roy A. McDowell, Alexander O. Chizhov
Publikováno v:
Carbohydrate Research. 310:203-210
MALDI and FAB mass spectrometry were applied to eight samples of laminarans from different algal species. The existence of both M-chains (mannitol-containing) and G-chains (mannitol-free) was confirmed for six of them, as well as the absence of M-cha
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::01886732cf7a90f19ba574f2210e9a7c
https://doi.org/10.1016/s0008-6215(98)00177-3
https://doi.org/10.1016/s0008-6215(98)00177-3
Autor:
A. A. Tishkov, O. S. Chizhov, Alexander D. Dilman, I. M. Lypkalo, A. A. Stomakhin, Natalya G. Kolotyrkina, Sema L. Ioffe, V. I. Kadentsev
Publikováno v:
Russian Chemical Bulletin. 47:1225-1228
Nitrocarboxylic acid esters and nitroalcohols react with trimethylsilyl cation in the gas phase under conditions of chemical ionization to form stable [M+SiMe3]+ ions. The pathways of their fragmentation were established and characteristic distinctio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a2488269ca7e134f90a15811c66e859
https://doi.org/10.1007/bf02503504
https://doi.org/10.1007/bf02503504
Publikováno v:
Russian Chemical Bulletin. 45:1921-1924
The effect of stereochemistry on the mechanism of gas-phase fragmentation of [M+SiMe3]+ ions was studied usingcis- andtrans-1,2- and -1,4-cyclohexanediols, their methyl ethers, and acetates as model compounds. The higher stability of the [M+SiMe3]+io
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5ee67fc1dbd5a9632fc1e466e753cf00
https://doi.org/10.1007/bf01457777
https://doi.org/10.1007/bf01457777
Publikováno v:
Russian Chemical Bulletin. 44:1698-1704
Peculiarities of interaction of H+, Me3C+, and Me3Si+ ions with functional groups of molecules in the gas phase have been studied. Proton tends to form chelates with virtually all of the functional groups studied, whereas Me3Si+ ions exhibit no capac
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b73771a076f917dc50cc54db10244070
https://doi.org/10.1007/bf01151294
https://doi.org/10.1007/bf01151294
Autor:
Alexander S. Shashkov, R. Caple, Daniel D. Gregory, O. S. Chizhov, Irina P. Smoliakova, William A. Smit
Publikováno v:
The Journal of Organic Chemistry. 60:1221-1227
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::52c840822c5b44162d0e5c3627f36035
https://doi.org/10.1021/jo00110a027
https://doi.org/10.1021/jo00110a027
Publikováno v:
Russian Chemical Bulletin. 43:578-582
Reactions of α- and β-glycosylfluoride tetraacetates with trimethylsilicenium ion in the gas phase during chemical ionization have been studied. The [M+SiMe3]+ ions formed from the glycosylfluorides are more stable than the corresponding [M+H]+ ion
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9da820d545032e505194674e0119c956
https://doi.org/10.1007/bf00699827
https://doi.org/10.1007/bf00699827
Autor:
O. S. Chizhov, R. Caple, Elena A. Zal'chenko, I. P. Smolyakova, S. Sharpe, Chris J. Kuehl, Alexander S. Shashkov, William A. Smit
Publikováno v:
Tetrahedron Letters. 34:3047-3050
Reaction of the ArSCl adducts formed in situ from the protected glucals with carbon nucleophiles in the presence of SnCl4 is proposed as a novel route for a stereoselective synthesis of various C-β-D-glucosides.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::024382d1b7b493816f54e8e13dc80517
https://doi.org/10.1016/s0040-4039(00)93375-6
https://doi.org/10.1016/s0040-4039(00)93375-6
Publikováno v:
Russian Chemical Bulletin. 50:250-252
The interaction of trimethylsilyl ions with nitrates of the estrane series affords the adducts [M + SiMe3]+, whose fragmentation proceeds through the elimination of the functional groups either along with the trimethylsilyl residue, or in the form of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b4b53509ed791b284c7568be68e92b4c
https://doi.org/10.1023/a:1009574100534
https://doi.org/10.1023/a:1009574100534
Autor:
Elena A. Zal'chenko, R. Caple, O. S. Chizhov, S. Sharpe, I. P. Smolyakova, William A. Smit, Alexander S. Shashkov, Chris J. Kuehl
Publikováno v:
ChemInform. 24
Reaction of the ArSCl adducts formed in situ from the protected glucals with carbon nucleophiles in the presence of SnCl4 is proposed as a novel route for a stereoselective synthesis of various C-β-D-glucosides.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bfc448cc568bb78e686fe2220d0a8dac
https://doi.org/10.1002/chin.199340264
https://doi.org/10.1002/chin.199340264