Zobrazeno 1 - 10
of 18
pro vyhledávání: '"T. N. Polyanskaya"'
Autor:
V. M. Berezovskii, T. M. Filippova, I. G. Suchkova, S. I. Peretokina, S. D. Mikhno, T. N. Polyanskaya
Publikováno v:
Chemistry of Heterocyclic Compounds. 14:1315-1319
It is shown that acrolein adds to the 4 position (rather than to the 2 position) of 4-benzamido-3-oxothiophan under the influence of catalysts with basic character; the aldehyde group of the intermediate compound reacts with the amino group (if the r
Publikováno v:
Chemistry of Heterocyclic Compounds. 6:1501-1505
The reduction of 4-benzoylamino- and 4-carbethoxyamino-3-ketothiophanes proceeds stereospecifically to form only trans-4-benzoylamino- and trans-4-carbethoxyamino-3-hydroxythiophanes, respectively, from which trans-4-amino-3-hydroxythiophane is obtai
Autor:
I. M. Kustanovich, T. M. Filippova, T. N. Polyanskaya, V. M. Berezovskii, N. S. Kulachkina, S. D. Mikhno
Publikováno v:
Chemistry of Heterocyclic Compounds. 8:813-817
The stereospecific synthesis of the four possible isomers of 4-benzamido-3-hydroxy-2-(δ-carbomethoxybutyl)thiophan (III–VI) was accomplished from 4-benzamido-3-oxo-2-(δ-carbomethoxybutylidene)thiophan (I) using the stereospecificity of the reduct
Autor:
I. M. Kustanovich, S. D. Mikhno, V. V. Mishchenko, T. M. Filippova, V. M. Berezovskii, N. S. Kulachkina, I. K. Shmyrev, T. N. Polyanskaya
Publikováno v:
Chemistry of Heterocyclic Compounds. 8:687-692
The structure of stereoisomeric 4-benzamido-3-hydroxy-2-carbomethoxythiophans was established by means of PMR and IR spectroscopy. The inversion of the trans,trans-isomer to the cis,trans-isomer was detected and studied. The inversion during the acti
Publikováno v:
Chemistry of Heterocyclic Compounds. 10:916-918
Condensation of 4-ethoxycarbonylamino-3-oxothiophan with methyl γ-formylbutyrate gives 4-ethoxycarbonylamino-3-oxo-2-(δ-methoxycarbonlybutyl)thiophan, its oxime, and r-4-eth-oxycarbonylamino-t-3-hydroxy-c-2-(δ-methoxycarbonylbutyl)thiophan.
Publikováno v:
Metallurgist. 13:655-657
Publikováno v:
Chemistry of Heterocyclic Compounds. 9:161-163
trans-4-Benzamido-3-hydroxy-2-(4-carbomethoxybutylidene)thiophan (I) was prototropically isomerized in the presence of hydrogen chloride. It is shown that the two possible isomers cis- and trans-4-benzamido-3-oxo-2-(4-carbomethoxybutyl)thiophan — a
Autor:
I. F. Ermak, É. S. Glikman, V. V. Sementovskii, T. N. Polyanskaya, V. D. Gladush, B. P. Bel'gol'skii
Publikováno v:
Metallurgist. 15:528-530
Publikováno v:
Chemischer Informationsdienst. 5
Publikováno v:
Chemischer Informationsdienst. 4