Zobrazeno 1 - 10
of 10
pro vyhledávání: '"B. V. Flekhter"'
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 33:2287-2290
The1H and13C NMR spectra were studied for 2,3,4-trisubstituted sulfolanes and the isomerism of these compounds was determined, The use of chemical shift information is more convenient to determine the isomerism of polysubstituted cyclic compounds by
Publikováno v:
Chemistry of Heterocyclic Compounds. 13:843-847
The stereochemistry of the reactions of 4-hydroxy-2-sulfolene, 4-hydroxy-3-chlorosulfolane, and 3,4-epoxysulfolane with nucleophilic reagents was studied. The optimum conditions for the preparation of sulfolanes with oxygen-containing substituents we
Publikováno v:
Chemistry of Heterocyclic Compounds. 15:1309-1313
4-Hydroxy-2-sulfolene, 3-hydroxy-4-chlorosulfolane, and 3,4-epoxysulfolane react with thiols in alkaline media to give mixtures of cis,trans-3-hydroxy-4-alkylthisulfolanes in a ratio of 2∶3.
Autor:
B. V. Flekhter, Tolstikov Genrikh A, D. N. Lazareva, N. N. Novitskaya, Kamalova Eg, V. A. Davydova
Publikováno v:
Pharmaceutical Chemistry Journal. 12:1568-1572
Autor:
A. A. Panasenko, Tolstikov Genrikh A, B. V. Flekhter, N. N. Novitskaya, Leonid V. Spirikhin, R. A. Sadykov
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 29:736-740
Based on studies of the PMR spectra of 3,4- and 2,5-disubstituted sulfolanes it has been shown that the difference in the chemical shifts of the geminal protons and the values of the chemical shifts of the protons associated with substituents are rel
Publikováno v:
Chemischer Informationsdienst. 9
Durch Chlorierung in wasriger Losung entsteht aus dem Sulfolen (I) das Chlorhydrin (II), aus dem durch Behandlung mit Kaliumhydroxid das Hydroxysulfolen (III) gebildet wird.
Autor:
V. A. Davydova, D. N. Lazareva, Kamalova Eg, B. V. Flekhter, Tolstikov Genrikh A, N. N. Novitskaya
Publikováno v:
Chemischer Informationsdienst. 10
Publikováno v:
Chemischer Informationsdienst. 11
4-Hydroxy-2-sulfolene, 3-hydroxy-4-chlorosulfolane, and 3,4-epoxysulfolane react with thiols in alkaline media to give mixtures of cis,trans-3-hydroxy-4-alkylthisulfolanes in a ratio of 2∶3.
Publikováno v:
Chemischer Informationsdienst. 10
Publikováno v:
Chemistry of Heterocyclic Compounds. 15:464-464