Zobrazeno 1 - 10
of 33
pro vyhledávání: '"F. Kh. Karataeva"'
Publikováno v:
Učënye Zapiski Kazanskogo Universiteta. Seriâ Estestvennye Nauki, Vol 165, Iss 1 (2023)
The structure and intramolecular mobility of some derivatives of bis(thio)phosphorylated amides in CCl4, CD2Cl2, and CD3CN solutions were examined by 1H and 31P NMR spectroscopy. A comparative analysis of the temperature-dependent 1H and 31P NMR spec
Externí odkaz:
https://doaj.org/article/4f3fadd42be84d12b7c85192d7b9df8f
Autor:
Semyon R. Romanov, Irina V. Galkina, Vladimir I. Galkin, Yu. V. Bakhtiyarova, Vladimir V. Klochkov, F. Kh. Karataeva, Maxim V. Morozov
Publikováno v:
Russian Journal of General Chemistry. 91:1333-1341
The nucleophilic addition reactions of tertiary phosphines and unsaturated carboxylic acids have led to the formation of mono- and dicarboxylate phosphabetaines containing an asymmetric carbon atom. The data of 1D and 2D NMR spectroscopy have reveale
Publikováno v:
Russian Journal of General Chemistry. 90:2080-2092
The reaction of hexafluoroacetone with 5,5-dimethyl-2-(2-oxo-1,2-diphenylethoxy)-1,3,2-dioxaphosphorinane occurs in two simultaneous directions: through the formation of cage phosphorane and spirophosphorane—1,1-(2,2-dimethylpropylenedioxy)-4,5-dip
Publikováno v:
BioNanoScience. 9:859-861
Phosphorylotropic rearrangement in N,N′-(bis)(diizopropoxyphosphorylamidocarbonyl)-1,10-diaza-18-crown-6-ester dissolved in DMSO was investigated by 1H, 13C, and 31P NMR spectroscopy. The transition from the amide form to the phosphorylotropic form
Autor:
Mudaris N. Dimukhametov, S.V. Efimov, F. Kh. Karataeva, Vladimir V. Klochkov, Vladimir F. Mironov
Publikováno v:
Russian Chemical Bulletin. 64:2517-2521
4,5-Dimethyl-2-(2-oxo-1,2-diphenylethoxy)-1,3,2-dioxaphospholane bearing the carbonyl group at the γ-position to the phosphorus atom reacted with hexafluoroacetone to give regio- and stereoisomeric caged phosphoranes with phosphorus–carbon and pho
Publikováno v:
Russian Journal of General Chemistry. 84:2142-2146
Structure and intramolecular transformations of N-phenyl,N′-(diisopropoxythiophosphoryl)thiourea has been studied by NMR spectroscopy and the AM1 quantum-chemical simulation. It has been shown that several forms, including two amide forms (EZ and Z
Publikováno v:
Journal of Molecular Structure. 1036:298-304
The molecule of immunosuppressant drug cyclosporin A (CsA) exhibits different properties when dissolved in different media. In apolar solvents it is stabilized by intramolecular hydrogen bonds, but there also exist some less populated conformations.
Autor:
F. Kh. Karataeva
Publikováno v:
Russian Journal of General Chemistry. 83:274-278
By means of the 1H, 13C, and 31P NMR spectroscopy structure and intramolecular transformations of N,N′-bis[diisopropoxythiophosphorylaminothiocarbonyl]-1,7-diaminoheptane in 3–10% DMSO solutions were studied. High lability of molecule with the re
Publikováno v:
Russian Journal of General Chemistry. 82:1982-1986
The structure of hyperbranched Boltorn H20-OH maleate was studied by one- and two-dimensional NMR spectroscopy and AM1 simulation. The polyester was found to have a non-stereoregular structure where two linear branches, as well as terminal and dendri
Publikováno v:
Russian Journal of Inorganic Chemistry. 57:1244-1251
A method of synthesis of a polynuclear cobalt(II) complex with carboxylated Boltorn H20, a hyperbranched polyol of second generation, has been suggested. The logarithm of stability constant and the composition of the complex species BH20(OC(O)CH2CH2C