Zobrazeno 1 - 10
of 445
pro vyhledávání: '"Nikolai S. Zefirov"'
Autor:
Elena B. Averina, Kseniya N. Sedenkova, Yuri K. Grishin, Tamara S. Kuznetzova, Nikolai S. Zefirov
Publikováno v:
ARKIVOC, Vol 2008, Iss 4, Pp 71-79 (2008)
Externí odkaz:
https://doaj.org/article/43f218a8b2494300830189f9070cbec7
Publikováno v:
Synthesis. 52:1140-1146
Iodination of a series of benzene and thiophene derivatives by potassium dichloroiodate monohydrate was studied with and without a solvent. The liquid substrates tend to be more reactive in water while the solid substrates afford better yields in dic
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9d7f6b80a845f617ce4c68d831c0c111
https://doi.org/10.1055/s-0039-1690795
https://doi.org/10.1055/s-0039-1690795
Autor:
Yulia A. Volkova, Elena B. Averina, Dmitry A. Vasilenko, Kseniya N. Sedenkova, Yuri K. Grishin, Per Bruheim, Tamara S. Kuznetsova, Nikolai S. Zefirov
Publikováno v:
The Journal of organic chemistry. 84(6)
A novel reaction of tetranitromethane with electrophilic alkenes in the presence of triethylamine affording substituted 5-nitroisoxazoles is described. Triethylamine reacts with tetranitromethane to generate N-nitrotriethylammonium and trinitromethan
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4f25f1aed8a261c22b7f307a1845c971
https://pubmed.ncbi.nlm.nih.gov/30726081
https://pubmed.ncbi.nlm.nih.gov/30726081
Autor:
Tamara S. Kuznetsova, Nikolai S. Zefirov, Per Bruheim, Yulia A. Volkova, Yuri K. Grishin, Elena B. Averina
Publikováno v:
The Journal of Organic Chemistry. 84:3742-3742
Novel reaction of tetranitromethane (TNM) with electrophilic alkenes in the presence of triethylamine yielding substituted 3-nitroisoxazoles was found and studied. Triethylamine increases the reactivity of TNM toward electrophilic alkenes promoting t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d3e1eadab11c12eb874f611cec048553
https://doi.org/10.1021/acs.joc.8b02967
https://doi.org/10.1021/acs.joc.8b02967
Autor:
Tatyana A. Podrugina, Andrei V. Mironov, Elena D. Matveeva, Vera A. Alferova, Vladimir V. Chernyshev, Rolf Gleiter, Nikolai S. Zefirov
Publikováno v:
Zeitschrift für Kristallographie - Crystalline Materials. 228:255-258
The crystal structure of 2-(4-methylphenyl)-2-oxo-1-(phenyliodonio)-1-(triphenylarsonio)ethanid tetrafluoroborate, C33H27AsIO+BF4 –, was solved and refined from laboratory X-ray powder diffraction data in combination with a DFT calculation (CoK α1
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e079f0219ba8e2c98edb36534f7d3415
https://doi.org/10.1524/zkri.2013.1566
https://doi.org/10.1524/zkri.2013.1566
Autor:
Oksana B. Bondarenko, Nikolai V. Zyk, Anna Yu. Gavrilova, Nikolai S. Zefirov, Dilovar S. Murodov, S. S. Zlotskii
Publikováno v:
Tetrahedron Letters. 54:1845-1848
Nitrosation of di(gem-dichlorocyclopropane) with NOCl·2SO3 proceeds regiospecifically and in two stages to afford di(5-chloroisoxazol-3-yl). The introduction of a methyl group on one of the cyclopropane rings crucially influences the reactivity and
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::41c5b65b6bcca12c681e4c42be6659e2
https://doi.org/10.1016/j.tetlet.2013.01.104
https://doi.org/10.1016/j.tetlet.2013.01.104
Autor:
A. Yu. Gavrilova, Nikolai S. Zefirov, Dilovar S. Murodov, Oksana B. Bondarenko, Nikolay V. Zyk
Publikováno v:
Russian Journal of Organic Chemistry. 49:186-194
Nitrosation with complex NOCl·2SO3 of gem-dichloroarylcyclopropanes containing acceptor substituents in the aromatic ring proceeded chemo- and regioselectively affording 3-aryl-5-chloroisoxazoles in high yields. The presence of donor substituents co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c19145a1fc533d5b221ab65b57c69ab5
https://doi.org/10.1134/s1070428013020024
https://doi.org/10.1134/s1070428013020024
Autor:
Nikolai S. Zefirov, Tamara S. Kuznetsova, Andrei G. Kutateladze, Victor B. Rybakov, Yulia A. Volkova, Yuri K. Grishin, Yuri V. Samoilichenko, Mikhail E. Elyashberg, Elena B. Averina
Publikováno v:
Tetrahedron Letters. 53:1472-1475
13 C NMR shift calculations abstract Revised regiochemistry for the heterocyclization of electrophilic alkenes with tetranitromethane (TNM) in the presence of triethylamine, providing rapid access to nitroisoxazoles, is reported. The formation of 5-n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::057b7bf00f3c11cff184b141f24a7f62
https://doi.org/10.1016/j.tetlet.2012.01.039
https://doi.org/10.1016/j.tetlet.2012.01.039
Autor:
R. B. Romashkina, Nikolai S. Zefirov, Alexander G. Majouga, Nikolai V. Zyk, Elena K. Beloglazkina
Publikováno v:
Russian Chemical Reviews. 81:65-90
The data on the preparation methods and applications of gold nanoparticles with coordinated metal ions on the surfaces are generalized. The currently available data on the interaction of metal ions with gold nanoparticles modified with organic (parti
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::71069dc7b4eef46dbac126ba998bc280
https://doi.org/10.1070/rc2012v081n01abeh004158
https://doi.org/10.1070/rc2012v081n01abeh004158
Autor:
Tamara S. Kuznetsova, Yulia A. Volkova, Victor B. Rybakov, Yuri K. Grishin, Nikolai S. Zefirov, Elena B. Averina
Publikováno v:
Tetrahedron Letters. 52:2910-2913
A convenient method for the preparation of functionalized β-nitroalkenes based on the nitration of α,α-di- and α,α,β-trisubstituted unsaturated aldehydes, ketones and esters with tetranitromethane in the presence of triethylamine is described.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c38da3c2aa0c6ff01725cc1a9d42cfb0
https://doi.org/10.1016/j.tetlet.2011.04.012
https://doi.org/10.1016/j.tetlet.2011.04.012