Zobrazeno 1 - 10
of 477
pro vyhledávání: '"N. S. Prostakov"'
Publikováno v:
Herald of the Russian Academy of Sciences. 76:370-375
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::777285b584dbe67198805e6ded439078
https://doi.org/10.1134/s1019331606040083
https://doi.org/10.1134/s1019331606040083
Autor:
N. S. Prostakov, B. S. Baatkh, M. D. Kharlamova, K. D. Ambacheu, V. P. Zvolinskii, A. A. Obynochnyi, V. G. Pleshakov
Publikováno v:
Chemistry of Heterocyclic Compounds. 36:421-428
A series of 2-substituted benzimidazoles was synthesized. These products were consecutively converted into 5-nitro- and 5-amino-2-substituted benzimidazoles.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::eea1495faca20fee1abd1178dc395fb0
https://doi.org/10.1007/bf02269539
https://doi.org/10.1007/bf02269539
Publikováno v:
Chemistry of Heterocyclic Compounds. 36:1300-1305
A mass-spectral study was carried out on the behavior of the Z- and E-isomers of 9-picolylideneazafluorenes. A possible mechanism for the elimination of a hydrogen atom from the M+ ion of the Z- and E-isomers of 1(4)-azafluorene derivatives was exami
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::204e3edc4532414cecf67b6612f7d6ae
https://doi.org/10.1023/a:1017571417991
https://doi.org/10.1023/a:1017571417991
Autor:
N. S. Prostakov, B. N. Anisimov, Anatoly T. Soldatenkov, N. M. Kolyadina, Siako Soro Siako Soro
Publikováno v:
Chemistry of Heterocyclic Compounds. 34:1066-1069
The 9-(β-pyridylmethylene)-4-azafluorene was obtained as the mixture of the Z- and E-isomers. Condensation of 4-azafluorene with methiodides of 3-formylpyridine afforded the methiodides of these isomers which were isolated in discrete form. Their co
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c36adc145770ebec3e4f597bd518eb6f
https://doi.org/10.1007/bf02251552
https://doi.org/10.1007/bf02251552
Publikováno v:
Chemistry of Heterocyclic Compounds. 34:937-940
The ratios ofE- toZ-isomers of the quaternary salts prepared by mono- and diquaternization of 9-(γ-pyridylmethylene)-1-(4)-azafluorenes with iodomethane or bromoacetophenone have been determined. Conversion of the diphenacyl 9-(γ-pyridyl)-4-azafluo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::aff12aed4c2c24255cb8ff2f4e351660
https://doi.org/10.1007/bf02311330
https://doi.org/10.1007/bf02311330
Publikováno v:
Chemistry of Heterocyclic Compounds. 34:833-836
It was found by x-ray diffraction analysis that in the fulvenes studied, the aromatic rings of the condensed tricyclic fragment are not in the same plane. The angle between them is approximately 4°. The exocyclic carbon atom is at the same angle rel
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8d7e4cdd5d07669e4454d9b17ddbc8f4
https://doi.org/10.1007/bf02251692
https://doi.org/10.1007/bf02251692
Publikováno v:
Russian Chemical Reviews. 66:121-138
Data on the chemistry of azafluorenes (indenopyridines) for the last two decades are summarised. Methods of synthesis of all isomeric (as regards the position of the nitrogen atom) azafluorenes are considered. The main reactions of azafluorenes are a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a0c8e2d27753cf2a3e1f6ced5ac2d44
https://doi.org/10.1070/rc1997v066n02abeh000263
https://doi.org/10.1070/rc1997v066n02abeh000263
Publikováno v:
Chemistry of Heterocyclic Compounds. 33:86-90
It has been shown that the intramolecular cyclization of N-(1-arylbutenyl)arylamines under acid catalysis conditions may proceed in two directions with the formation of 2-aryl-2,4-dimethyl-1,2,3,4-tetrahydroquinolines and 1,3 disubstituted indenes.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6600e6e378bdd8c93c1ba162cc501a07
https://doi.org/10.1007/bf02290752
https://doi.org/10.1007/bf02290752
Publikováno v:
Chemistry of Heterocyclic Compounds. 32:202-205
Catalytic dehydrocyclization of azomethines obtained by condensation of p-toluidine and also 3(4)-aminopyridines with methyl aryl ketones leads to substituted indoles and pyrrolopyridine isomers with the nitrogen atom at different positions in the si
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7739b6bba300ce5033567f8763c779cf
https://doi.org/10.1007/bf01165447
https://doi.org/10.1007/bf01165447
Autor:
Yu. T. Struchkov, K. D. Ambacheu, V. P. Zvolinsky, N. S. Prostakov, Ryashentseva Margarita A, Sergey Lindeman, V. G. Pleshakov, E. Huipe Nava, A. G. Dudareva, V. M. Akimov
Publikováno v:
Russian Chemical Bulletin. 44:682-688
Based on thermogravimetric characteristics first obtained for the model 6H-indeno [1,2-b]quinoline, the scheme of thermal conversions of this compound in the temperature range 20–700 °C has been proposed, and the limit of its thermal stability (
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d16b5d078f98a3966b5f17258652ed29
https://doi.org/10.1007/bf00698503
https://doi.org/10.1007/bf00698503