Zobrazeno 1 - 10 of 74 pro vyhledávání: '"G. I. Zhungietu"'
3
Condensation of indole with isatin
Autor: G. I. Zhungietu, L. P. Sinyavskaya
Publikováno v: Chemistry of Heterocyclic Compounds. 12:178-181
Isatin undergoes condensation with indole in the presence of diethylamine to give 3-(3-indolyl)dioxindole.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d97d774fcde0fc4326d8eb90bbc4b3be
https://doi.org/10.1007/bf00523964
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4
Mass-spectrometric study of physiologically active β-thiosemicarbazones of N-alkylisatins
Autor: B. T. Oloi, N. I. Chmykhova, G. I. Zhungietu, Kh. Sh. Khariton, M. A. Rekhter
Publikováno v: Chemistry of Heterocyclic Compounds. 15:66-70
The molecular ions of isatin (I) and N-methyl- (II) and N-ethylisatin (III) β-thiosemicarbazones undergo fragmentation via many pathways with the elimination of NH3, H2S, CO, CH2N2, CHN3, CH2N2S, CH2NS, and CHNS particles; this is due to primary loc
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::234884a0b5c39ea4bbdee6adc52caf52
https://doi.org/10.1007/bf00471202
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6
Reversible monoamine oxidase inhibitors in the indolinone series
Autor: A. S. Roska, B. A. Grinberg, G. I. Zhungietu, A. A. Prikulis, D. G. Tsedere, L. M. Zorin
Publikováno v: Pharmaceutical Chemistry Journal. 18:304-307
76+21 41_+21 17-+2 44-3 76+_--31 56___2] 204-3 5-+4 76-+3] 57_+21 4.8-+~ 2-+3 74+2] 57___2} 43• 79~2 t 68-+31 58_+~ 15--+31 8-+21 3___~ 72-+2} 33-+21 74-~ 73-+31 55-+3] 17-+~ ) i§ 57-+3! 76_+31 61-+2~ Ib__~31 4-+2 32-+31 ]0-4-2 31-+51 t14-2 34--+-
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d412bb805e317e95801617dc1d5bb1de
https://doi.org/10.1007/bf00766660
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8
Mass spectrometric study of isatins II. N-propyl(allyl, propargyl)isatins
Autor: G. I. Zhungietu, Kh. Sh. Khariton, M. A. Rekhter, N. I. Chmykhova, B. T. Oloi, N. P. Dormidontova
Publikováno v: Chemistry of Heterocyclic Compounds. 13:515-518
The mass spectra of N-propyl- (I), N-allyl- (IV), and N-propargylisatin (VII) and their 5-methyl (II, V, VIII) and 7-methyl (III, VI, and IX) derivatives were recorded. It is shown that a portion of the [M-2CO]+ ions in the mass spectra of N-propargy
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1801e756255fc755ade0b3c85c2ce6c1
https://doi.org/10.1007/bf00473197
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9
Synthesis of 2-acylindoles from ?-(N-isatinyl) ketones
Autor: G. I. Zhungietu, L. M. Zorin, V. I. Gorgos, M. A. Rekhter
Publikováno v: Chemistry of Heterocyclic Compounds. 19:1179-1182
2-Acylindoles were synthesized by the recyclization of N-phenacyl- and N-aceto-nylisatins in alkaline media and the decarboxylation of 2-acylindolyl-3-carboxylic acids or their salts in basic or neutral media.
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::60ce37c52f4a4070b32995d9d5824aff
https://doi.org/10.1007/bf00515352
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10
Mass-spectrometric investigation of isatins
Autor: G. I. Zhungietu, Kh. Sh. Khariton, B. T. Oloi, M. A. Rekhter, N. I. Chmykhova
Publikováno v: Chemistry of Heterocyclic Compounds. 11:840-843
It is shown that in the mass spectra of N-alkylisatins with a normal C1-C10 chain the intensity of the [M-CO]+- and [M-(2CO)]+. peaks characteristic for isatin and N-methylisatin decreases as the alkyl radical is lengthened, whereas the intensity of
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::57fba046c628c982252441b26bdb63c6
https://doi.org/10.1007/bf00497309
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