Zobrazeno 1 - 10
of 53
pro vyhledávání: '"Marina V. Markova"'
Autor:
Denis V. Leonenko, Marina V. Markova
Publikováno v:
Механика машин, механизмов и материалов, Iss 3(60), Pp 68-76 (2022)
Forced oscillations of a three-layer circular plate with step-variable thickness of the outer layers are analyzed. The deformation of the plate is described with the zig-zag theory. In thin border layers of plate Kirchhoff’s hypotheses are valid. I
Externí odkaz:
https://doaj.org/article/c8ab9a292ca84472a4051a10d2c0500f
Publikováno v:
Доклады Академии наук. 489:473-477
Oligomers of cholesterol vinyl ether (CVE) with methyl vinyl sulfide synthesized in the presence of cationic catalyst ВF3 OEt2 in up to 81% yield (Mn up to 5700) demonstrate optical activity exceeding that of CVE homopolymer, which is probably due t
Publikováno v:
Doklady Chemistry. 489:288-291
Oligomers of cholesterol vinyl ether with methyl vinyl sulfide were synthesized in up to 81% yield (Mn up to 5700) by cationic copolymerization of the indicated monomers in the presence of BF3 ‧ OEt2. The oligomers demonstrate optical activity exce
Autor:
Marina V. Markova, Ol'ga A. Tarasova, Inna V. Tatarinova, V. V. Kireeva, Boris A. Trofimov, K. A. Apartsin
Publikováno v:
Доклады Академии наук. 485:697-700
Cationic copolymerization of cholesterol vinyl ether with N-allenylpyrrolidone yielded co-oligomers with molecular mass of 1200-2100. The polymerization of N-allenylpyrrolidone involves both 1,2- and 2,3-positions of the allenyl substituent to give f
Publikováno v:
ARKIVOC, Vol 2001, Iss 9, Pp 24-30 (2001)
Externí odkaz:
https://doaj.org/article/51c2490a166b4901a294f358ccc69dc6
Publikováno v:
Russian Journal of Organic Chemistry. 53:184-191
Aminomethylation of 2-methyl(aryl)-, 2-aryl-3-alkylpyrroles, 4,5,6,7-tetrahydroindole and its 1-vinyl- and 1-benzyl-substituted derivatives with a mixture of 5% water-ethanol solution of formaldehyde and cyclic amine (pyrrolidine, piperazine, and mor
Autor:
Igor A. Ushakov, Lyubov N. Sobenina, Elena F. Sagitova, Andrey V. Ivanov, Marina V. Markova, Boris A. Trofimov
Publikováno v:
Tetrahedron Letters. 59:4047-4049
Acylethynylpyrroles, available via the transition metal-free coupling of pyrroles with acylhaloacetylenes are readily annelated with propargylamine in a one-pot step-wise procedure: catalyst-free heating (60–65 °C, 6–16 h) in DMSO and then keepi
Autor:
Tamara I. Vakul'skaya, Boris A. Trofimov, Lyubov N. Sobenina, Marina V. Markova, Spartak S. Khutsishvili, Denis N. Tomilin, Igor A. Ushakov, Maxim D. Gotsko
Publikováno v:
Tetrahedron Letters. 57:4961-4964
The first representatives of a previously unknown class of highly reactive functionalized pyrrole compounds, 3-(pyrrol-2-yl)propiolaldehydes, have been synthesized by the transition metal-free, mechanoactivated ethynylation of pyrroles with 3-iodopro
Autor:
Marina V. Markova, A. V. Yakimanskii, Inna V. Tatarinova, Spartak S. Khutsishvili, Tamara I. Vakul'skaya, Boris A. Trofimov, Galina F. Prozorova
Publikováno v:
Polymer Science Series B. 58:681-688
The oligomerization of N-vinylpyrroles (N-vinyl-4,5,6,7-tetrahydroindole, N-vinyl-2-[1-(1-4,5,6,7-tetrahydroindole)ethyl]-4,5,6,7-tetrahydroindole, N-vinyl-2-phenylpyrrole, N-vinyl-3-heptyl-2-phenylpyrrole, N-vinyl-2,3-diphenylpyrrole, and N-vinyl-2-
Autor:
Igor A. Ushakov, Denis N. Tomilin, Lyubov N. Sobenina, Marina V. Markova, Boris A. Trofimov, Elena F. Sagitova
Publikováno v:
Mendeleev Communications. 29:252-253
Available NH-2-acylethynylpyrroles undergo annulation/aromatization with propargylamine in the presence of 1 equiv. of CuHal (Hal = Cl, Br, I) at 60–65 °C to afford 3-acyl-2-(pyrrol-2-yl)pyridines and their 5-halo analogues in 28–61 and 5–14%