Zobrazeno 1 - 10
of 23
pro vyhledávání: '"G. S. Litvinenko"'
Publikováno v:
ChemInform. 23
Autor:
G. S. Litvinenko, T. K. Iskakova
Publikováno v:
Chemistry of Heterocyclic Compounds. 27:859-863
Equilibration of stereoisomeric cyclic ethinylcarbinols, epimeric at the carbinol center, was conducted for the first time and it was shown that the equilibrium is shifted toward the equatorial alcohol (at 50‡C for 2e-methyl-4-hydroxy-4-phenylethin
Autor:
E. G. Yalovenko, G. S. Litvinenko
Publikováno v:
Chemistry of Heterocyclic Compounds. 26:53-57
The 13C NMR spectra of 5-keto- and 5a- and 5e-hydroxy-10-methyl- and 1,10-dimethyltrans-decahydroquinolines have been recorded and interpreted. The increments of the oxo and hydroxy groups in the 10-methyldecahydroquinoline and the isostructural 10-m
Publikováno v:
Chemistry of Heterocyclic Compounds. 24:906-914
It is shown that epimeric [with respect to the C(2) atom] 1-chloro-2-methyl-4-keto-trans-decahydroquinolines in an acidic medium undergo intermolecular monochlorination in the α position relatve to the carbonyl group with the formation of epimeric [
Publikováno v:
Chemistry of Heterocyclic Compounds. 20:309-314
Three isomers of 1,2-dimethyldecahydroquinolin-5-ol and their acetates with cis and trans fusion of the rings and different orientations of the hydroxy and acyloxy groups were obtained. The correlation of the frequencies of the C-O, O-H, and N+-H str
Autor:
L. A. Voronenko, G. S. Litvinenko
Publikováno v:
Chemistry of Heterocyclic Compounds. 23:200-204
Reduction of 1-benzoyl-2α-methyl-4-oxo-cis-decahydroquinoline with sodium borohydride and sodium in alcohol has given 1-benzoyl-2α-methyl-4Β-hydroxy-cis-decahydroquinoline, which exists in the steroidal conformation with diaxial α, α′-substitu
Autor:
G. S. Litvinenko, L. A. Voronenko
Publikováno v:
Chemistry of Heterocyclic Compounds. 20:643-649
Epimeric (with respect to the methyl group) stereoisomers of 4-keto-2-methyl-1-chloro-trans-decahydroquinoline were obtained, and their transformations under the influence of triethylamine were investigated. It was shown that the direction of the tra
Publikováno v:
Chemistry of Heterocyclic Compounds. 25:796-804
The isomers of 1-benzoyl-2,5-dimethyl-4-piperidone were obtained and equilibrated (89.8% cis ⇄ 10.2% trans isomer, preferred conformations 2a, 5e, and 2a, 5a). The position of the equilibrium between the isomers of 2,5-dimethyl-4-piperidone was det
Autor:
N. Yu. Kuz'mina, G. S. Litvinenko
Publikováno v:
Chemistry of Heterocyclic Compounds. 23:1211-1215
Isomers of 2-methyl- and 1,2-dimethyl-cis-decahydro-5-quinolinol with a syn orientation of the hydroxy and amino groups and different orientations of the methyl group relative to the methylene group at C(8)H2 were subjected to conformational analysis
Publikováno v:
Bulletin of the Academy of Sciences of the USSR Division of Chemical Science. 37:922-926
The main product of the benzoylation of the hydrochloride of t-2-methyl-t-5-hydroxy-r-9-H-cis-decahydroquinoline, which exists in the conformation with the intramolecular H-bond, is the amidoester which can form a stable 1∶1 complex with benzoic ac