Zobrazeno 1 - 10
of 13
pro vyhledávání: '"Vikentii I. Bragin"'
Autor:
Pavel V. Petrovskii, Vladimir I. Bregadze, Alexander A. Korlyukov, Igor B. Sivaev, Vikentii I. Bragin
Publikováno v:
Journal of Fluorine Chemistry. 142:14-18
Reactions of decaborane nido-B10H14 with a series of fluorobenzaldehydes in alkaline solution followed by treatment with iodine give the closo-[2-(X-FC6H4)-2-CB9H9]− anions (X = 2, 3, 4). Upon heating, these compounds rearrange to more thermodynami
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2c9a432a49462936fac0b17fbe5f4166
https://doi.org/10.1016/j.jfluchem.2012.06.019
https://doi.org/10.1016/j.jfluchem.2012.06.019
Autor:
Alexander V. Prikaznov, Igor B. Sivaev, Pavel V. Petrovskii, Akim V. Shmal’ko, Vikentii I. Bragin, Vladimir V. Bregadze, Alexander V. Kisin
Publikováno v:
Polyhedron. 30:1494-1501
A series of new boron-containing carboxylic acids was prepared by the ring-opening reaction of cyclic oxonium derivatives of the closo -decaborate anion [B 10 H 10 ] 2− with methyl esters of hydroxybenzoic acids or the cyanide anion followed by hyd
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c555795b23ae77eba2f1dd44ffb7d5f
https://doi.org/10.1016/j.poly.2011.02.055
https://doi.org/10.1016/j.poly.2011.02.055
Autor:
Elena A. Rakova, Sergey V. Timofeev, V. L. Shirokii, Vikentii I. Bragin, Zoya A. Starikova, Igor B. Sivaev, Vladimir I. Potkin, D. A. Rudakov, N. A. Maier, Vladimir I. Bregadze, Ivan A. Godovikov, Ivan V. Glukhov
Publikováno v:
Journal of Organometallic Chemistry. 692:5133-5140
Halogenation of 9-dimethylsulfonium-7,8-dicarba-nido-undecaborane [9-SMe2-7,8-C2B9H11] with N-chlorosuccinimide, bromine and iodine gave the expected corresponding halogen derivatives [9-SMe2-11-X-7,8-C2B9H10], where X = Cl (1), Br (2), I (3). In the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::633e99dea4a4eeb1840eddb9e7f690ef
https://doi.org/10.1016/j.jorganchem.2007.07.036
https://doi.org/10.1016/j.jorganchem.2007.07.036
Publikováno v:
Russian Chemical Bulletin. 56:1918-1921
Comparative quantum chemical calculations of structural parameters, chemical shifts of 11B NMR spectra, and atomic charges in 10-vertex boron hydride anions [1-CB9H10]− and [1-B10H9N2]− were performed using the restricted Hartree-Fock method with
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::177e94662b362fdd0f8f00280a3c0e8c
https://doi.org/10.1007/s11172-007-0294-7
https://doi.org/10.1007/s11172-007-0294-7
Autor:
Marina Yu. Stogniy, Irina A. Lobanova, Vikentii I. Bragin, Olga V. Sorokina, Ekaterina N. Abramova, Vladimir I. Bregadze, Pavel V. Petrovskii, Igor B. Sivaev, Viktoria N. Tsupreva
Publikováno v:
Collection of Czechoslovak Chemical Communications. 72:1676-1688
A new approach to synthesis of functional derivatives of 7,8-dicarba-nido-undecaborate anion based on ring-opening of its cyclic oxonium derivatives [10-(CH2)4O-7,8-C2B9H11] and [10-O(CH2CH2)2O-7,8-C2B9H11] with various nucleophiles was developed. Bo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::945355fe30a02959610f04091a7aef87
https://doi.org/10.1135/cccc20071676
https://doi.org/10.1135/cccc20071676
Autor:
Vikentii I. Bragin, Alexander V. Prikaznov, Margarita N. Davydova, Igor B. Sivaev, Vladimir I. Bregadze
Publikováno v:
Collection of Czechoslovak Chemical Communications. 72:1689-1696
Synthesis of alkoxy derivatives of closo-decaborate anion [1- and 2-B10H9OR]2- by reaction of the hydroxy derivatives with corresponding alkyl bromides was described. A new method of synthesis of 2-hydroxy derivative of closo-decaborate anion [2-B10H
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e10370c2f2cddc6f396350380bec5d76
https://doi.org/10.1135/cccc20071689
https://doi.org/10.1135/cccc20071689
Autor:
Alexander V. Prikaznov, Igor B. Sivaev, Alexei A. Titov, Oleg A. Filippov, Vladimir I. Bregadze, Vikentii I. Bragin, Tatyana A. Teplinskaya, Pavel V. Petrovskii, Elena S. Shubina
Publikováno v:
Collection of Czechoslovak Chemical Communications. 72:1725-1739
The effect of electron-donating and electron-withdrawing substituents on the proton-deuterium exchange in derivatives of the closo-decaborate anion in methanol-d4 was studied. Introduction of the electron-donating hydroxy (alkoxy) group into the apic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8f39e5eef08c99d0911d4e9f1779b70e
https://doi.org/10.1135/cccc20071725
https://doi.org/10.1135/cccc20071725
Autor:
D. A. Rudakov, Vikentii I. Bragin, Vladimir I. Potkin, Pavel V. Petrovskii, A. V. Kisin, V. L. Shirokii, Igor B. Sivaev, Vladimir I. Bregadze, E. A. Dikusar
Publikováno v:
Russian Journal of Electrochemistry. 42:280-284
By electrochemical iodination of potassium 7-methyl-7,8-dicarba-nido-undecaborate and potassium 7,8-dimethyl-7,8-dicarba-nido-undecaborate, their monoiodine derivatives (extracted as tetramethylammonium salts) are synthesized. Their structure is conf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3c9ffb75a2952896916b1f9230721f3b
https://doi.org/10.1134/s102319350603013x
https://doi.org/10.1134/s102319350603013x
Autor:
Vikentii I. Bragin, N. A. Maier, D. A. Rudakov, Vladimir I. Bregadze, Pavel V. Petrovskii, Igor B. Sivaev, A. V. Kisin, V. L. Shirokii, Vladimir I. Potkin
Publikováno v:
Russian Chemical Bulletin. 54:1599-1602
Electrochemical thiocyanation of the dodecahydro-7,8-dicarba-nido-undecaborate and 7,8-dimethyldecahydro-7,8-dicarba-nido-undecaborate monoanions afforded thiocyanate derivatives of these compounds, which were isolated as alkylammonium salts. The str
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4d15b1ecc8a2f322f24b015bacf1ab6d
https://doi.org/10.1007/s11172-006-0009-5
https://doi.org/10.1007/s11172-006-0009-5
Autor:
Vladimir I. Bregadze, Stefan Sjöberg, Vikentii I. Bragin, Natal'ya A. Votinova, Igor B. Sivaev
Publikováno v:
Russian Chemical Bulletin. 53:2092-2095
Reactions of an amino derivative of the closo-decaborate anion [1-B10H9NH3]− with aromatic aldehydes afforded Schiff bases [1-B10H9NH=CHAr]− (Ar=Ph, C6H4-2-OMe, or C6H4-4-NHCOMe). The reduction of the latter with sodium borohydride gave the corre
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19650adc9a1c8e356f40614b11ab0878
https://doi.org/10.1007/s11172-005-0079-9
https://doi.org/10.1007/s11172-005-0079-9