Zobrazeno 1 - 10 of 42 pro vyhledávání: '"A. Yu. Chervinskii"'
1
Quantitative Analysis of Spectral Effects due to the Z/E Conformational Equilibria in Derivatives of the Amides and Hydrazides of Dicarboxylic Acids
Autor: O. A. Gorkunenko, G. E. Vaiman, L. M. Kapkan, A. N. Vdovichenko, A. Yu. Chervinskii
Publikováno v: Theoretical and Experimental Chemistry. 40:12-16
The contributions from anisotropic magnetic screening and electronic effects to the relative chemical shifts of the NH protons in the amides and N,N-dimethylhydrazides of succinic and glutaric acids were calculated. It was shown that the splitting of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::ccbbb3cd0c117f8eacb2b02bbf333e51
https://doi.org/10.1023/b:thec.0000020760.57178.e9
Zobrazit plný text záznamu
2
Hantzsch reaction in urea-formaldehyde resins
Autor: V. V. Kotova, T. M. Pekhtereva, A. Yu. Chervinskii, V. Z. Maslosh
Publikováno v: Russian Journal of Applied Chemistry. 81:901-903
The effect of acetylacetone and ammonia in urea-formaldehyde resins on the reactions occurring in their presence was examined. The formation of 2,6-dimethyl-3,5-diacetyl-l,4-dihydropyridine in urea-formaldehyde resins was confirmed by 1H NMR spectros
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::20fe36a76dfedcc4546fe38b732c53b7
https://doi.org/10.1134/s1070427208050388
Zobrazit plný text záznamu
3
Internal rotation in succinic acid N,N,N?,N?-tetramethyldihydrazide
Autor: A. Yu. Chervinskii, A. N. Vdovichenko, V. F. Galat, L. M. Kapkan
Publikováno v: Theoretical and Experimental Chemistry. 31:105-108
A conformational study has been done on succinic acid N,N,N′,N′-tetramethyldihydrazide, where it has been found informative to combine the NOESY method with NMR line shape analysis in order to give a correct description of the multipositional che
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::49ac515b42a6876ab94c0591feb3068a
https://doi.org/10.1007/bf00529996
Zobrazit plný text záznamu
9
A PMR study of the conformation equilibrium and the proton exchange in acyl- and diacyl derivatives of hydrazine and phenylhydrazine
Autor: E. V. Titov, L. M. Kapkan, A. Yu. Chervinskii
Publikováno v: Journal of Molecular Structure. 60:187-192
The influence of electronic and steric properties of the R 1 and R 2 substituents on Z,E-conformational equilibrium of the acetyl group and the conformer structures in β-acetyl- and α-acetyl-β- benzoyl derivatives of hydrazine and phenylhydrazine
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::677752ba118e4f24ec971db35d82d77e
https://doi.org/10.1016/0022-2860(80)80057-3
Zobrazit plný text záznamu
10
Study of the mechanism of proton exchange in carboxylic acid hydrazides
Autor: A. Yu. Chervinskii, E. V. Titov, L. M. Kapkan
Publikováno v: Theoretical and Experimental Chemistry. 14:210-213
We have previously studied proton exchange in a number of substituted phenylhydrazines [I] and carboxylic acid hydrazides [2] and shown that the exchange rate depends on the acid-base properties of the amino group. The proposed exchange mechanism inv
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::740d176c3e168d250b7251161ff15857
https://doi.org/10.1007/bf00518076
Zobrazit plný text záznamu

Vyhledávací nástroje:

Upřesnit hledání

Omezení vyhledávání
Plný text Recenzováno Digitální knihovna AV ČR
Zdroje