New approach to the preparation of p-(1-cyanoethyl)arenesulfonamides by reaction of arylsulfonyl imines of polychloroacetaldehydes with acetone cyanohydrin
作者:A. R. Kaliev、V. Yu. Serykh、I. B. Rosentsveig
DOI:10.1134/s1070428017080061
日期:2017.8
Reaction of N-(2,2,2-trichloroethylidene)- or N-(1-phenyl-2,2-dichloroethylidene)arenesulfonamides with acetonecyanohydrin in acetone in the presence of potassium carbonate led to the formation of N- (2,2,2-trichloro-1-cyanoethyl)- or N-(2-phenyl-2,2-dichloro-1-cyanoethyl)arenesulfonamides.
Two-Step Regioselective Synthesis of 3-(Sulfonylamino)imidazo[1,2-<i>a</i>]pyrimidines from 2-Aminopyrimidines and<i>N</i>-(2,2-Dichloro-2-phenylethylidene)arensulfonamides
作者:Igor B. Rozentsveig、Valery Yu. Serykh、Gulnur N. Chernysheva、Evgeniy V. Kondrashov、Alena I. Fedotova、Igor A. Ushakov、Evgeny V. Tretyakov、Galina V. Romanenko
DOI:10.1002/ejoc.201402695
日期:2014.10
The reaction of 2-aminopyrimidines with N-(2,2-dichloro-2-phenylethylidene)arenesulfonamides affords the corresponding products of nucleophilic addition to the azomethine group, N-[2,2-dichloro-2-phenyl-1-(heterylamino)ethyl]sulfonamides, in good yields. The latter are easily cyclized to give imidazo[1,2-a]pyrimidin-3-ylsulfonamides in the presence of NaOH, whereas the expected isomeric imidazo[1,
Synthesis and structural studies of novel aminopolychloroethylated chelate acetylacetonate complexes of aluminum (III) and chromium (III)
作者:Spartak S. Khutsishvili、Gulnur N. Chernysheva、Igor B. Rozentsveig
DOI:10.1007/s11224-020-01540-w
日期:2020.10
bio-medicinally promising complexes of amidotrichloroethylated acetylacetonate with Cr(III) and Al(III), which combine synthetically and pharmacologically attractive fragments, have been synthesized. Structural peculiarities of the complexes were investigated by magnetic resonance techniques (EPR, NMR) and some other modern physical-chemical methods (FT-IR, SEM, and elemental analysis). The axial and
已经合成了酰胺三氯乙基化乙酰丙酮化物与 Cr(III) 和 Al(III) 的具有生物医学前景的新型复合物,它们结合了具有合成和药理学吸引力的片段。通过磁共振技术(EPR、NMR)和其他一些现代物理化学方法(FT-IR、SEM和元素分析)研究了配合物的结构特性。由于 EPR 和 X 射线衍射分析数据支持的配位介质中存在结构不同的乙酰丙酮配体,因此在乙酰丙酮衍生物中观察到八面体对称性的轴向和正交畸变。
Diels–Alder trapping vs. amidoalkylation of cyclopentadiene with polychloroacetaldehyde sulfonylimines
作者:Gulnur N. Chernysheva、Maxim D. Katerinich、Igor A. Ushakov、Igor B. Rozentsveig
DOI:10.1016/j.mencom.2020.09.022
日期:2020.9
The reaction of chloral or dichloro(phenyl)acetaldehyde N-arylsulfonylimines with cyclopentadiene, depending on the reaction conditions, affords either Diels–Alder adducts, 2-arylsulfonyl-2-azabicyclo[2.2.1]hept-5-enes, or unexpectedly new amidoalkylated derivatives of cyclopentadiene, N-[(cyclopentadienyl)(polychloromethyl)methyl]arenesulfonamides.
作者:Igor B. Rozentsveig、Valery Y. Serykh、Gulnur N. Chernysheva、Kirill A. Chernyshev、Evgeniy V. Kondrashov、Evgeny V. Tretyakov、Galina V. Romanenko
DOI:10.1002/ejoc.201201006
日期:2013.1
2-dichloro-2-phenyl-1-(heterylamino)ethyl]sulfonamides, in good yields. The latter are easily cyclized to (imidazo[1,2-a]pyridin-3-yl)sulfonamides and (imidazo[2,1-b]thiazol-5-yl)sulfonamides in the presence of alkali, whereas the expected isomeric (imidazo[1,2-a]pyridin-2-yl)sulfonamides and (imidazo[2,1-b]thiazol-6-yl)sulfonamides are not formed. A one-pot two-stage method for the synthesis of target heterocyclic