Zobrazeno 1 - 10
of 24
pro vyhledávání: '"K. Yu. Chotii"'
Publikováno v:
Theoretical and Experimental Chemistry. 48:172-175
The reaction of diphenyl chlorophosphate with the 4-nitrophenolate ion was studied in the presence of a series of para derivatives of pyridine 1-oxide under inverse phase transfer catalysis (IPTC) conditions. The reaction proceeds due to the formatio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::57ac2f8299040d7f8fece744c2ffd7f1
https://doi.org/10.1007/s11237-012-9257-7
https://doi.org/10.1007/s11237-012-9257-7
Publikováno v:
Russian Journal of General Chemistry. 80:301-307
Structures and state in solutions of natural polyphenol gossypol and four its imino derivatives, three of which were synthesized for the first time, were studied by IR and NMR spectroscopy, and by quantum chemistry. The reaction of these compounds wi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f2d2161ece408ec346ba81546381247d
https://doi.org/10.1134/s1070363210020192
https://doi.org/10.1134/s1070363210020192
Autor:
A. N. Red’ko, Grzegorz Schroeder, V. V. Kovalenko, B. Lenska, K. Yu. Chotii, V. I. Rubachenko
Publikováno v:
Russian Journal of General Chemistry. 78:1241-1246
Transfer of acyl groups from N-acyloxypyridinium salts to pyridine N-oxides in acetonitrile was studied. The equilibrium constants of acyl exchange were determined. These quantities vary in the range covering eight orders of magnitude, depending on t
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::627f0ffaa3025968907c1559bc943bce
https://doi.org/10.1134/s1070363208060248
https://doi.org/10.1134/s1070363208060248
Publikováno v:
Russian Journal of Physical Chemistry A. 81:1608-1612
28 identical acyl exchange reactions R-CO-Nu+, X− + Nu between pyridine N-oxides in acetonitrile were studied. Here, X− = BPh 4 − and R = methyl, N,N-dimethylamino, N,N-diethylamino, 4-morpholino, 1-piperidino, N-methyl, N-phenylamino, or N,N-d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8b1b0e356aa2623b524ffbc4b84bd1d2
https://doi.org/10.1134/s0036024407100111
https://doi.org/10.1134/s0036024407100111
Autor:
K. Yu. Chotii, Grzegorz Schroeder, V. I. Rybachenko, B. Lenska, A. N. Red’ko, V. V. Kovalenko
Publikováno v:
Russian Journal of Organic Chemistry. 41:774-778
Kinetic characteristics of 19 transfer reactions of benzoyl group from N-benzoyloxypyridinium salts to pyridine N-oxides and 4-dimethylaminopyridine were studied in acetonitrile by the stopped-flow method. The rate of an identical reaction for 4-meth
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d752fe2a7ea2177c315776e7e82b8677
https://doi.org/10.1007/s11178-005-0244-5
https://doi.org/10.1007/s11178-005-0244-5
Publikováno v:
Russian Journal of General Chemistry. 74:1597-1604
Transfer of the dimethylcarbamoyl group from N-acyloxypyridinium salts to pyridines and from N-acylpyridinium salts to pyridine N-oxides was studied in acetonitrile. Equations relating the reaction rates and equilibria in the N-O and O-N acyl transfe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0241f137c7fa1e9c692359a77ba39c06
https://doi.org/10.1007/s11176-005-0064-x
https://doi.org/10.1007/s11176-005-0064-x
Publikováno v:
Russian Journal of Organic Chemistry. 40:412-416
The rate of formation of N- and O-acetyl and benzoyl salts of pyridines and pyridine N-oxides in acetonitrile and methylene chloride and equilibria therein were studied. The process occurs in one step following the SN2 mechanism with a small degree o
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6efeabb3f3951a289c4ffa557321a55
https://doi.org/10.1023/b:rujo.0000034981.44740.a5
https://doi.org/10.1023/b:rujo.0000034981.44740.a5
Autor:
A. N. Red’ko, V. V. Kovalenko, K. Yu. Chotii, V. I. Rybachenko, B. Lenska, Grzegorz Schroeder
Publikováno v:
Theoretical and Experimental Chemistry. 39:359-363
We have studied the rate of 15 reactions of acyl transfer from O-acyl salts of 4-dimethylaminostyryl-4′-pyridine N-oxide to 4-morpholinopyridine and 4-dimethylaminopyridine N-oxides in acetonitrile solutions. Analysis of the results based on the Sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e9f35b28e018c4c43f6889810a1f8fc8
https://doi.org/10.1023/b:thec.0000013988.96134.87
https://doi.org/10.1023/b:thec.0000013988.96134.87
Autor:
L. V. Grebenyuk, V. V. Kovalenko, K. Yu. Chotii, Grzegorz Schroeder, B. Lenska, V. I. Rybachenko, K. Eitner
Publikováno v:
Russian Journal of General Chemistry. 73:455-462
Dimethylcarbamoyl transfer from N-acyloxypyridinium salts to pyridine N-oxides in acetonitrile occurs in one stage by the forced concerted SN2 mechanism. The rate and equilibrium of the reaction are fairly described by the Bronsted equation. The Marc
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dfa9dcbc7e53ca67068497876f58301f
https://doi.org/10.1023/a:1024974323588
https://doi.org/10.1023/a:1024974323588
Publikováno v:
Theoretical and Experimental Chemistry. 37:230-235
We have studied 18 reactions, including four identity reactions, involving transfer of a dimethylcarbamoyl group with N-acylpyridinium bonds to pyridine and its 4-substituted derivatives in acetonitrile solutions at 298 K. The rate constants kij vari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f1271a6385d59af1f89fbc2e6f07d57d
https://doi.org/10.1023/a:1012524427859
https://doi.org/10.1023/a:1012524427859