Zobrazeno 1 - 10
of 60
pro vyhledávání: '"V. A. Grabel'nykh"'
Autor:
I. B. Rosenzweig, V. S. Nikonova, V. A. Grabel’nykh, E. A. Chirkina, Leonid B. Krivdin, N. A. Korchevin
Publikováno v:
Russian Journal of Organic Chemistry. 57:1073-1083
A mechanism has been proposed for the reaction of 1,3-dichloropropene with dipotassium propane-1,3-bis(dithiolate) in the system hydrazine hydrate–potassium hydroxide on the basis of DFT quantum chemical calculations at the B3LYP/6-311++G(d,p) leve
Autor:
V. S. Nikonova, Igor B. Rozentsveig, V. A. Grabel’nykh, I. N. Bogdanova, N. B. Russavskaya, N. V. Istomina, N. G. Sosnovskaya, N. A. Korchevin
Publikováno v:
Russian Journal of General Chemistry. 91:814-819
A possibility of the synthesis of 1,4-dichalcogenins by the reaction of vinylidene chloride or 1,2-dichloroethene with elemental chalcogenes in a hydrazine hydrate–KOH system was studied. When vinylidene chloride was used, the maximum yield of 1,4-
Autor:
N. A. Korchevin, Igor B. Rozentsveig, Ekaterina P. Levanova, E. A. Chirkina, V. S. Nikonova, V. A. Grabel’nykh, A. I. Albanov, N. V. Russavskaya
Publikováno v:
Russian Journal of Organic Chemistry. 54:1754-1759
Electron-donor effect of the methyl group in 1,3-dichlorobut-2-ene hampers allylic rearrangement of its primary monochalcogenation products. The use of diphenyl disulfide under harsh conditions (Ph2S2–KOH, 1: 10, 75–80°C) makes it possible to ob
Autor:
V. А. Grabel’nykh, Igor B. Rozentsveig, N. V. Russavskaya, V. S. Nikonova, N. А. Korchevin, A. I. Albanov, Е. P. Levanova
Publikováno v:
Russian Journal of General Chemistry. 88:383-388
Vinylidene chloride and 1,2-dichloroethene react with sulfur in the system hydrazine hydrate–KОН with the formation of polyvinylenesulfide oligomer of molecular mass 1750–6120 Da containing also vinylenehydrazine and vinylenechloride links in t
Chalcogenation of 1,3-dichloropropene with elemental chalcogens in the system hydrazine hydrate–base
Autor:
Igor B. Rozentsveig, V. A. Grabel’nykh, Ekaterina P. Levanova, A. I. Albanov, V. S. Nikonova, N. V. Russavskaya, N. A. Korchevin
Publikováno v:
Russian Journal of General Chemistry. 86:1282-1287
Sulfur reacts with 1,3-dichloropropene in the system hydrazine hydrate–KOH to form bis(1-chloroprop-1-en-3-yl) sulfide, and in the system hydrazine hydrate–monoethanolamine, bis(1-chloroprop-1-en- 3-yl) disulfide. The reaction of tellurium in the
Autor:
V. S. Nikonova, V. A. Grabel’nykh, N. A. Korchevin, Ekaterina P. Levanova, N. V. Russavskaya, A. I. Albanov, Igor B. Rozentsveig
Publikováno v:
Russian Journal of Organic Chemistry. 52:615-623
Formation of 1,3-dichalcogenylpropene at the treatment of 1,3-dichloropropene with organic dichalcogenides in a redox system hydrazine hydrate–KOH is governed by the possibility of an allyl rearrangement. In the presence of bases this rearrangement
Autor:
N. A. Korchevin, V. A. Grabel’nykh, A. I. Albanov, N. V. Russavskaya, Igor B. Rozentsveig, V. S. Nikonova
Publikováno v:
Russian Journal of Organic Chemistry. 55:1800-1801
The reaction of 1,4-dichlorobut-2-yne with propane-1,3-dithiolate was carried out for the first time. A mixture of cyclic (2-vinyl-1,4-dithiepan-2-ene) and linear (5,10-dithiatridec-1,12-diyne-3,10-diene) products was synthesized, in 30 and 15% yield
Autor:
Ekaterina P. Levanova, V. A. Grabel’nykh, N. A. Korchevin, Igor B. Rozentsveig, Lyudmila V. Klyba, A. I. Albanov, V. S. Vakhrina, N. V. Russavskaya
Publikováno v:
Russian Chemical Bulletin. 64:2083-2089
A reaction of organic dichalcogenides R2Y2 (R = Ph, Bn, Pr; Y = S, Se) with 1,4-dichlorobut-2-yne in the system hydrazine hydrate–KOH leads to four principal products: 1,4-bis(organylchalcogenyl)but-2-ynes, 1-organylchalcogenylbut-1-en-3-ynes, 4-or
Autor:
Igor B. Rozentsveig, N. A. Korchevin, A. I. Albanov, V. S. Vakhrina, N. V. Russavskaya, Ekaterina P. Levanova, E. R. Sanzheeva, V. A. Grabel’nykh
Publikováno v:
Russian Journal of Organic Chemistry. 51:161-166
Procedure of synthesis of sulfides containing a chloropropenyl fragment sensitive to bases was modified. The change in the sequence of reagents addition ensuring a contact of isothiouronium salt with a minimal base quantity and the application of a m
Autor:
V. S. Vakhrina, N. A. Korchevin, N. V. Russavskaya, E. R. Sanzheeva, Igor B. Rozentsveig, Ekaterina P. Levanova, A. I. Albanov, V. A. Grabel’nykh
Publikováno v:
Russian Journal of General Chemistry. 84:2130-2137
Two approaches to synthesis of bis-chalcogenyl derivatives of propene with two different chalcogen atoms are proposed. Reaction of 2,3-dichloro-1-propene with two different chalcogen nucleophiles PhY− (Y = S, Se) results in a mixture of two product