Zobrazeno 1 - 10
of 59
pro vyhledávání: '"Svetlana V. Kirpichenko"'
Publikováno v:
ARKIVOC, Vol 2012, Iss 5, Pp 175-185 (2012)
Externí odkaz:
https://doaj.org/article/2856608103e3487b9c01cf17695f3349
Autor:
Erich Kleinpeter, Svetlana V. Kirpichenko, Sergey A. Shlykov, Bagrat A. Shainyan, Alexander I. Albanov, Tran Dinh Phien
Publikováno v:
Tetrahedron. 74:1859-1867
The 3,3-disubstitued 3-silaheterocyclohexane with an electronegative substituent at silicon, 3-fluoro-3-methyl-3-silatetrahydropyran 1, was synthesized, and its molecular structure and conformational properties studied by gas-phase electron diffracti
Publikováno v:
Russian Journal of General Chemistry. 88:96-102
The mechanism of electrophilic cleavage of the Si–Ph bond in 1,3-silaheterocyclohexanes is investigated. 3-Aryl-3-silatetrahydropyrans are shown to be less prone to the cleavage of the Si–Ph bond under the action of trifluromethanesulfonic acid t
Publikováno v:
The Journal of Organic Chemistry. 82:13414-13422
New Si-phenyl-substituted silacyclohexanes and 3-silatetrahydropyrans have been synthesized and studied with respect to the conformational equilibria of the heterosix-membered ring by low temperature 13C NMR spectroscopy and quantum chemical calculat
Publikováno v:
Tetrahedron. 71:6720-6726
Molecular structure and conformational behavior of 3-isopropoxy-3-methyl-3-oxasilinane is studied by low temperature 13C NMR spectroscopy and theoretical calculations (DFT, MP2). Two conformers, 1-ROax and 1-ROeq, were found experimentally and locate
Publikováno v:
Tetrahedron. 71:599-604
A new facile and efficient one-pot procedure for the synthesis of 3-phenyl-3-silatetrahydropyrans with an easily functionalized Si–Ph bond was developed. The method is based on the intramolecular cyclization of chloromethyl(3-hydroxypropyl)phenylsi
Publikováno v:
The Journal of organic chemistry. 82(24)
New Si-phenyl-substituted silacyclohexanes and 3-silatetrahydropyrans have been synthesized and studied with respect to the conformational equilibria of the heterosix-membered ring by low temperature
Publikováno v:
Structural Chemistry. 25:1677-1685
Molecular structure and conformational behavior of the title compound 1 were studied experimentally by gas-phase electron diffraction (GED–MS) and theoretically (DFT and MP2). Only two of four possible conformers of 1 differing by axial or equatori
Publikováno v:
Journal of Physical Organic Chemistry. 25:1321-1327
The conformational analysis of the first representative of the Si-alkoxy substituted six-membered Si,N-heterocycles, 1,3-dimethyl-3-isopropoxy-3-silapiperidine, was performed by low-temperature 1H and 13C NMR spectroscopy and DFT theoretical calculat
Publikováno v:
Tetrahedron. 68:7494-7501
1-Isopropyl-3-methyl-3-phenyl-1,3-azasilinane 1 and 1-isopropyl-3,3-dimethyl-1,3-azasilinane 2 were synthesized and a detailed analysis of their NMR spectra, conformational equilibria and ring inversion processes is presented. Low temperature 1 H/ 13